diff --git a/cross/crossdb_class.php b/cross/crossdb_class.php
index 86932ad..edf9fe3 100644
--- a/cross/crossdb_class.php
+++ b/cross/crossdb_class.php
@@ -18,7 +18,7 @@
 
 defined('MOODLE_INTERNAL') || die();
 
-/**
+/*
  * This class is a cross that can load and save to a table
  *
  * @author  bdaloukas
diff --git a/cross/play.php b/cross/play.php
index 61e4591..5d90f3d 100644
--- a/cross/play.php
+++ b/cross/play.php
@@ -352,7 +352,7 @@ if (document.getElementById("waitmessage") != null)
     for (var x = 0; x < CrosswordWidth; x++){ 
         TableDownWord[x] = new Array(CrosswordHeight);
     }
-	
+
     GuessLeter = new Array(CrosswordWidth);
     for (var x = 0; x < CrosswordWidth; x++) {
         GuessLeter[x] = new Array(CrosswordHeight);
@@ -368,14 +368,14 @@ if (document.getElementById("waitmessage") != null)
             solu[ x][ y] = "";
         }
     }
-	
+
     for (var y = 0; y < CrosswordHeight; y++) {
         for (var x = 0; x < CrosswordWidth; x++) {
             TableAcrossWord[x][y] = -1;
             TableDownWord[x][y] = -1;
         }
-	}
-	// First, add the horizontal words to the puzzle.
+    }
+    // First, add the horizontal words to the puzzle.
     for (var i = 0; i <= LastHorizontalWord; i++) {
         x = WordX[i];
         y = WordY[i];
@@ -395,7 +395,7 @@ if (document.getElementById("waitmessage") != null)
             solu[ x+j][ y] = c;
         }
     }
-	
+
     // Second, add the vertical words to the puzzle.
     for (var i = LastHorizontalWord + 1; i < Words; i++) {
         x = WordX[i];
@@ -416,12 +416,12 @@ if (document.getElementById("waitmessage") != null)
             solu[ x][ y+j] = c;
         }
     }
-	
+
     document.writeln("<tr><td></td>");
     for (var x = 0; x < CrosswordWidth; x++) {
         document.write("<td align=center>" + (x+1) + " </td>");    //col numbers
     }
-		
+
     // Now, insert the row HTML into the table.
     for (var y = 0; y < CrosswordHeight; y++) {
         document.writeln("<tr>");
@@ -447,11 +447,11 @@ if (document.getElementById("waitmessage") != null)
         }
         document.writeln("</tr>");
     }
-	
+
     // Finally, show the crossword and hide the wait message.
     Initialized = true;
     document.getElementById("waitmessage").style.display = "none";
-    document.getElementById("crossword").style.display = "block";	
+    document.getElementById("crossword").style.display = "block";
 }
 
 // ----------
@@ -460,315 +460,319 @@ if (document.getElementById("waitmessage") != null)
 // Raised when a key is pressed in the word entry box.
 function WordEntryKeyPress(event)
 {
-	if (CrosswordFinished) return;
-	// Treat an Enter keypress as an OK click.
-	if (CurrentWord >= 0 && event.keyCode == 13) OKClick();
+    if (CrosswordFinished) return;
+    // Treat an Enter keypress as an OK click.
+    if (CurrentWord >= 0 && event.keyCode == 13) OKClick();
 }
 
 // ----------
 // Helper functions
 
 // Returns true if the string passed in contains any characters prone to evil.
-function ContainsBadChars(theirWord)
-{return false;
-	for (var i = 0; i < theirWord.length; i++)
-		if (BadChars.indexOf(theirWord.charAt(i)) >= 0) return true;
-	return false;
+function ContainsBadChars(theirWord) {
+    return false;
+
+    for (var i = 0; i < theirWord.length; i++) {
+        if (BadChars.indexOf(theirWord.charAt(i)) >= 0) return true;
+    }
+    return false;
 }
 
 // Pads a number out to three characters.
-function PadNumber(number)
-{
-	if (number < 10)
-		return "00" + number;
-	else if (number < 100)
-		return "0" + number;
-	else
-		return "" +  number;
+function PadNumber(number) {
+    if (number < 10) }
+        return "00" + number;
+    } else if (number < 100) {
+        return "0" + number;
+    } else {
+        return "" +  number;
+    }
 }
 
 // Returns the table cell at a particular pair of coordinates.
-function CellAt(x, y)
-{
-	return document.getElementById("c" + PadNumber(x) + PadNumber(y));
+function CellAt(x, y) {
+    return document.getElementById("c" + PadNumber(x) + PadNumber(y));
 }
 
 // Deselects the current word, if there's a word selected.  DOES not change the value of CurrentWord.
-function DeselectCurrentWord()
-{
-	if (CurrentWord < 0) return;
-	var x, y, i;
-	
-	document.getElementById("answerbox").style.display = "none";
-	document.getElementById("answerbox2").style.display = "none";
-	ChangeCurrentWordSelectedStyle(false);
-	CurrentWord = -1;
-	
+function DeselectCurrentWord() {
+    if (CurrentWord < 0) {
+        return;
+    }
+
+    var x, y, i;
+
+    document.getElementById("answerbox").style.display = "none";
+    document.getElementById("answerbox2").style.display = "none";
+    ChangeCurrentWordSelectedStyle( false);
+    CurrentWord = -1;
 }
 
 // Changes the style of the cells in the current word.
-function ChangeWordStyle(WordNumber, NewStyle)
-{
-	if (WordNumber< 0) return;
-	var x = WordX[WordNumber];
-	var y = WordY[WordNumber];
-	
-	if (WordNumber<= LastHorizontalWord)
-		for (i = 0; i < WordLength[WordNumber]; i++)
-			CellAt(x + i, y).className = NewStyle;
-	else
-		for (i = 0; i < WordLength[WordNumber]; i++)
-			CellAt(x, y + i).className = NewStyle;
+function ChangeWordStyle(WordNumber, NewStyle) {
+    if (WordNumber< 0) {
+        return;
+    }
+    var x = WordX[WordNumber];
+    var y = WordY[WordNumber];
+
+    if (WordNumber<= LastHorizontalWord) {
+        for (i = 0; i < WordLength[WordNumber]; i++) {
+            CellAt(x + i, y).className = NewStyle;
+        }        
+    } else {
+        for (i = 0; i < WordLength[WordNumber]; i++) {
+            CellAt(x, y + i).className = NewStyle;
+        }
+    }
 }
 
 // Changes the style of the cells in the current word between the selected/unselected form.
-function ChangeCurrentWordSelectedStyle(IsSelected)
-{
-	if (CurrentWord < 0) return;
-	var x = WordX[CurrentWord];
-	var y = WordY[CurrentWord];
-	
-	if (CurrentWord <= LastHorizontalWord)
-		for (i = 0; i < WordLength[CurrentWord]; i++)
-			CellAt(x + i, y).className = CellAt(x + i, y).className.replace(IsSelected ? "_unsel" : "_sel", IsSelected ? "_sel" : "_unsel");
-	else
-		for (i = 0; i < WordLength[CurrentWord]; i++)
-			CellAt(x, y + i).className = CellAt(x, y + i).className.replace(IsSelected ? "_unsel" : "_sel", IsSelected ? "_sel" : "_unsel");
+function ChangeCurrentWordSelectedStyle(IsSelected) {
+    if (CurrentWord < 0) {
+        return;
+    }
+    var x = WordX[CurrentWord];
+    var y = WordY[CurrentWord];
+
+    if (CurrentWord <= LastHorizontalWord) {
+        for (i = 0; i < WordLength[CurrentWord]; i++) {
+            CellAt(x + i, y).className = CellAt(x + i, y).className.
+            replace(IsSelected ? "_unsel" : "_sel", IsSelected ? "_sel" : "_unsel");
+        }
+    } else {
+        for (i = 0; i < WordLength[CurrentWord]; i++) {
+            CellAt(x, y + i).className = CellAt(x, y + i).className.
+            replace(IsSelected ? "_unsel" : "_sel", IsSelected ? "_sel" : "_unsel");
+        }
+    }
 }
 
 // Selects the new word by parsing the name of the TD element referenced by the 
 // event object, and then applying styles as necessary.
-function SelectThisWord(event)
-{
-	if (CrosswordFinished) return;
-	var x, y, i, TheirWord, TableCell;
-	
-	// Deselect the previous word if one was selected.
-	document.getElementById("welcomemessage").style.display = "none";
-	if (CurrentWord >= 0) OKClick();
-	DeselectCurrentWord();
-	
-	// Determine the coordinates of the cell they clicked, and then the word that
-	// they clicked.
-	var target = (event.srcElement ? event.srcElement: event.target);
-	x = parseInt(target.id.substring(1, 4), 10);
-	y = parseInt(target.id.substring(4, 7), 10);
-	
-	// If they clicked an intersection, choose the type of word that was NOT selected last time.
-	if (TableAcrossWord[x][y] >= 0 && TableDownWord[x][y] >= 0)
-		CurrentWord = PrevWordHorizontal ? TableDownWord[x][y] : TableAcrossWord[x][y];
-	else if (TableAcrossWord[x][y] >= 0)
-		CurrentWord = TableAcrossWord[x][y];
-	else if (TableDownWord[x][y] >= 0)
-		CurrentWord = TableDownWord[x][y];
-
-	PrevWordHorizontal = (CurrentWord <= LastHorizontalWord);
-	
-	// Now, change the style of the cells in this word.
-	ChangeCurrentWordSelectedStyle(true);
-	
-	// Then, prepare the answer box.
-	x = WordX[CurrentWord];
-	y = WordY[CurrentWord];
-	TheirWord = "";
-	var TheirWordLength = 0;
-	for (i = 0; i < WordLength[CurrentWord]; i++)
-	{
-		// Find the appropriate table cell.
-		if (CurrentWord <= LastHorizontalWord)
-			TableCell = CellAt(x + i, y);
-		else
-			TableCell = CellAt(x, y + i);
-		// Add its contents to the word we're building.
+function SelectThisWord(event) {
+    if (CrosswordFinished) {
+        return;
+    }
+    var x, y, i, TheirWord, TableCell;
+
+    // Deselect the previous word if one was selected.
+    document.getElementById("welcomemessage").style.display = "none";
+    if (CurrentWord >= 0) {
+        OKClick();
+    }
+    DeselectCurrentWord();
+
+    // Determine the coordinates of the cell they clicked, and then the word that
+    // they clicked.
+    var target = (event.srcElement ? event.srcElement: event.target);
+    x = parseInt(target.id.substring(1, 4), 10);
+    y = parseInt(target.id.substring(4, 7), 10);
+
+    // If they clicked an intersection, choose the type of word that was NOT selected last time.
+    if (TableAcrossWord[x][y] >= 0 && TableDownWord[x][y] >= 0) {
+        CurrentWord = PrevWordHorizontal ? TableDownWord[x][y] : TableAcrossWord[x][y];
+    } else if (TableAcrossWord[x][y] >= 0) {
+        CurrentWord = TableAcrossWord[x][y];
+    } else if (TableDownWord[x][y] >= 0) {
+        CurrentWord = TableDownWord[x][y];
+    }
+
+    PrevWordHorizontal = (CurrentWord <= LastHorizontalWord);
+
+    // Now, change the style of the cells in this word.
+    ChangeCurrentWordSelectedStyle(true);
+
+    // Then, prepare the answer box.
+    x = WordX[CurrentWord];
+    y = WordY[CurrentWord];
+    TheirWord = "";
+    var TheirWordLength = 0;
+    for (i = 0; i < WordLength[CurrentWord]; i++) {
+        // Find the appropriate table cell.
+        if (CurrentWord <= LastHorizontalWord) {
+            TableCell = CellAt(x + i, y);
+        } else {
+            TableCell = CellAt(x, y + i);
+        }
+        // Add its contents to the word we're building.
         if (TableCell.innerHTML != null && TableCell.innerHTML.length > 0 &&
             TableCell.innerHTML != " " && TableCell.innerHTML.toLowerCase() != "&nbsp;") {
-			TheirWord += TableCell.innerHTML.toUpperCase();
-			TheirWordLength++;
-		} else {
-			TheirWord += "&bull;";
-		}
-	}
-
-	document.getElementById("wordlabel").innerHTML = TheirWord;
-<?php 
-    $msg = "\"".get_string( 'cross_across', 'game').", \" : \"".
-        get_string( 'cross_down', 'game').", \"";
-    $letters = "\" ".get_string( 'letter', 'game').".\" : \" ".
-        get_string( 'letters', 'game').".\"";
-?>
+            TheirWord += TableCell.innerHTML.toUpperCase();
+            TheirWordLength++;
+        } else {
+            TheirWord += "&bull;";
+        }
+    }
+
+    document.getElementById("wordlabel").innerHTML = TheirWord;
+    <?php
+    $msg = "\"".get_string( 'cross_across', 'game').", \" : \"".get_string( 'cross_down', 'game').", \"";
+    $letters = "\" ".get_string( 'letter', 'game').".\" : \" ".get_string( 'letters', 'game').".\"";
+    ?>
     var s = ((CurrentWord <= LastHorizontalWord) ? <?php echo $msg ?>);
     s = s + WordLength[CurrentWord] + (WordLength[CurrentWord] == 1 ? <?php echo $letters;?>);
     document.getElementById("wordinfo").innerHTML = s;
 
-	document.getElementById("wordclue").innerHTML = Clue[CurrentWord];
-	document.getElementById("worderror").style.display = "none";
-	//document.getElementById("cheatbutton").style.display = (Word.length == 0) ? "none" : "";
-	if (TheirWordLength == WordLength[CurrentWord])
-		document.getElementById("wordentry").value = TheirWord;
-	else
-		document.getElementById("wordentry").value = "";
-	
-	// Finally, show the answer box.
-	document.getElementById("answerbox").style.display = "block";
-	document.getElementById("answerbox2").style.display = "block";
-	try
-	{
-		document.getElementById("wordentry").focus();
-		document.getElementById("wordentry").select();
-	}
-	catch (e)
-	{
-	}
-	
+    document.getElementById("wordclue").innerHTML = Clue[CurrentWord];
+    document.getElementById("worderror").style.display = "none";
+
+    if (TheirWordLength == WordLength[CurrentWord]) {
+        document.getElementById("wordentry").value = TheirWord;
+    } else {
+        document.getElementById("wordentry").value = "";
+    }
+
+    // Finally, show the answer box.
+    document.getElementById("answerbox").style.display = "block";
+    document.getElementById("answerbox2").style.display = "block";
+    try {
+        document.getElementById("wordentry").focus();
+        document.getElementById("wordentry").select();
+    }
+    catch (e) {
+    }
 }
 
 // Called when the user clicks the OK link.
-function OKClick()
-{
-	var TheirWord, x, y, i, TableCell;
-	if (CrosswordFinished) return;
-	if (document.getElementById("okbutton").disabled) return;
-	
-	// First, validate the entry.
-	TheirWord = document.getElementById("wordentry").value.toUpperCase();
-	if (TheirWord.length == 0)
-	{
-		DeselectCurrentWord();
-		return;
-	}
-	if (ContainsBadChars(TheirWord))
-	{
-		document.getElementById("worderror").innerHTML = "<?php echo get_string( 'cross_error_containsbadchars', 'game');?>";
-		document.getElementById("worderror").style.display = "block";
-		return;
-	}
-	if (TheirWord.length < WordLength[CurrentWord])
-	{
+function OKClick() {
+    var TheirWord, x, y, i, TableCell;
+    if (CrosswordFinished) {
+        return;
+    }
+    if (document.getElementById("okbutton").disabled) {
+        return;
+    }
+
+    // First, validate the entry.
+    TheirWord = document.getElementById("wordentry").value.toUpperCase();
+    if (TheirWord.length == 0) {
+        DeselectCurrentWord();
+        return;
+    }
+    if (ContainsBadChars(TheirWord)) {
+        document.getElementById("worderror").innerHTML = "<?php echo get_string( 'cross_error_containsbadchars', 'game');?>";
+        document.getElementById("worderror").style.display = "block";
+        return;
+    }
+    if (TheirWord.length < WordLength[CurrentWord]) {
         var s = "<?php echo get_string( 'cross_error_wordlength1', 'game');?>";
         s = s + WordLength[CurrentWord] + " <?php echo get_string( 'cross_error_wordlength2', 'game');?>";
         document.getElementById("worderror").innerHTML  = s;
-		document.getElementById("worderror").style.display = "block";
-		return;
-	}
-	if (TheirWord.length > WordLength[CurrentWord])
-	{
+        document.getElementById("worderror").style.display = "block";
+        return;
+    }
+    if (TheirWord.length > WordLength[CurrentWord]) {
         var s = "<?php echo get_string( 'cross_error_wordlength1', 'game');?>";
         s = s + WordLength[CurrentWord] + " <?php echo get_string( 'cross_error_wordlength2', 'game');?>";
         document.getElementById("worderror").innerHTML = s;
-		document.getElementById("worderror").style.display = "block";
-		return;
-	}
-	
-	// If we made it this far, they typed an acceptable word, so add these letters to the puzzle and hide the entry box.
-	x = WordX[CurrentWord];
-	y = WordY[CurrentWord];
-	for (i = 0; i < TheirWord.length; i++)
-	{
-		TableCell = CellAt(x + (CurrentWord <= LastHorizontalWord ? i : 0), y + (CurrentWord > LastHorizontalWord ? i : 0));
-		TableCell.innerHTML = TheirWord.substring(i, i + 1);
-	}
-	DeselectCurrentWord();
+        document.getElementById("worderror").style.display = "block";
+        return;
+    }
+
+    // If we made it this far, they typed an acceptable word, so add these letters to the puzzle and hide the entry box.
+    x = WordX[CurrentWord];
+    y = WordY[CurrentWord];
+    for (i = 0; i < TheirWord.length; i++) {
+        TableCell = CellAt(x + (CurrentWord <= LastHorizontalWord ? i : 0), y + (CurrentWord > LastHorizontalWord ? i : 0));
+        TableCell.innerHTML = TheirWord.substring(i, i + 1);
+    }
+    DeselectCurrentWord();
 }
 
-<?php 
-    if ($showhtmlsolutions == false) {
+<?php
+if ($showhtmlsolutions == false) {
 ?>
-function PackPuzzle( sData)
-{
-  var i;
-  var s;
-  var s2;
-  var n;
-  var j;
-  
-  s = "";
-  len = sData.length;
-  for(i=0; i < len; i++)
-  {
-    c = sData.charAt( i);
-    if( (c > "0") && (c <= "9"))
-    {
-        s = s.concat( '/');
+function PackPuzzle( sData) {
+    var i, s, s2, n, j;
+
+    s = "";
+    len = sData.length;
+    for(i=0; i < len; i++) {
+        c = sData.charAt( i);
+        if( (c > "0") && (c <= "9")) {
+            s = s.concat( '/');
+        }
+        s = s.concat( c);
     }
-    s = s.concat( c);
-  }
-
-  for(;;)
-  {
-    i = s.indexOf( "__");
-    if( i == -1)
-      break;
-    len = s.length;
-
-    for( j=i ; j < len; j++)
-    {
-      if( s.charAt( j) != "_")
-        break;
+
+    for(;;) {
+        i = s.indexOf( "__");
+        if( i == -1) {
+            break;
+        }
+        len = s.length;
+
+        for( j=i ; j < len; j++) {
+            if( s.charAt( j) != "_") {
+                break;
+            }
+        }
+        n = j - i;
+        s2 = s.substr( 0, i);
+        s2 = s2.concat( n);
+        s = s2.concat( s.substr( j));
     }
-    n = j - i;
-    s2 = s.substr( 0, i);
-    s2 = s2.concat( n);
-    s = s2.concat( s.substr( j));
-  }
 
-  return encodeURIComponent( s);
+    return encodeURIComponent( s);
 }
 
 // Called when the "check server" link is clicked.
-function CheckServerClick( endofgame)
-{
-	var i, j, x, y, UserEntry, ErrorsFound = 0, EmptyFound = 0, TableCell;
-	if (CrosswordFinished)
-    return;
-	DeselectCurrentWord();
-	
-	for (y = 0; y < CrosswordHeight; y++)
-	for (x = 0; x < CrosswordWidth; x++)
-	{
-		if (TableAcrossWord[x][y] >= 0 || TableDownWord[x][y] >= 0)
-		{
-			TableCell = CellAt(x, y);
-			if (TableCell.className == "box boxerror_unsel")
-        TableCell.className = "box boxnormal_unsel";
-		}
-	}
-		
-	sData = "";
-	for (i = 0; i < Words; i++)
-	{
-		// Get the user's entry for this word.
-		UserEntry = "";
-		for (j = 0; j < WordLength[i]; j++)
-		{
-			if (i <= LastHorizontalWord)
-				TableCell = CellAt(WordX[i] + j, WordY[i]);
-			else
-				TableCell = CellAt(WordX[i], WordY[i] + j);
-			if (TableCell.innerHTML.length > 0 && TableCell.innerHTML.toLowerCase() != "&nbsp;")
-				UserEntry += TableCell.innerHTML.toUpperCase();
-			else if( TableCell.innerHTML.toLowerCase() == "&nbsp;")
-			    UserEntry += " ";
-			else
-				UserEntry += "_";
-		}
-		sData += UserEntry;
-	}
-
-	sData = PackPuzzle( sData);
-	
-	if( endofgame)
-		sData += "&finishattempt=1";
-	
-<?php
-        if ($onlyshow == false) {
-            global $CFG;
-            $params = 'id='.$id.'&action=crosscheck&g=';
-            echo "window.location = \"{$CFG->wwwroot}/mod/game/attempt.php?$params\"+ sData;\r\n";
+function CheckServerClick( endofgame) {
+    var i, j, x, y, UserEntry, ErrorsFound = 0, EmptyFound = 0, TableCell;
+    if (CrosswordFinished) {
+        return;
+    }
+    DeselectCurrentWord();
+
+    for (y = 0; y < CrosswordHeight; y++)  {
+        for (x = 0; x < CrosswordWidth; x++) {
+            if (TableAcrossWord[x][y] >= 0 || TableDownWord[x][y] >= 0) {
+                TableCell = CellAt(x, y);
+                if (TableCell.className == "box boxerror_unsel") {
+                    TableCell.className = "box boxnormal_unsel";
+                }
+            }
         }
-?>
+    }
+
+    sData = "";
+    for (i = 0; i < Words; i++) {
+        // Get the user's entry for this word.
+        UserEntry = "";
+        for (j = 0; j < WordLength[i]; j++) {
+            if (i <= LastHorizontalWord) {
+                TableCell = CellAt(WordX[i] + j, WordY[i]);
+            } else {
+                TableCell = CellAt(WordX[i], WordY[i] + j);
+            }
+            if (TableCell.innerHTML.length > 0 && TableCell.innerHTML.toLowerCase() != "&nbsp;") {
+                UserEntry += TableCell.innerHTML.toUpperCase();
+            } else if( TableCell.innerHTML.toLowerCase() == "&nbsp;") {
+                UserEntry += " ";
+            } else {
+                UserEntry += "_";
+            }
+        }
+        sData += UserEntry;
+    }
+
+    sData = PackPuzzle( sData);
+
+    if( endofgame) {
+        sData += "&finishattempt=1";
+    }
+
+    <?php
+    if ($onlyshow == false) {
+        global $CFG;
+        $params = 'id='.$id.'&action=crosscheck&g=';
+        echo "window.location = \"{$CFG->wwwroot}/mod/game/attempt.php?$params\"+ sData;\r\n";
+    }
+    ?>
 }
 <?php
-    }
+}
 ?>
 
 function OnPrint()
@@ -781,13 +785,12 @@ function OnPrint()
 }
 
 <?php
-    if ($showhtmlprintbutton) {
+if ($showhtmlprintbutton) {
 ?>
-    function PrintHtmlClick()
-    {
-    	document.getElementById("printhtmlbutton").style.display = "none";
-    	
-    	<?php
+    function PrintHtmlClick() {
+        document.getElementById("printhtmlbutton").style.display = "none";
+
+        <?php
         if ($showhtmlsolutions) {
             ?> document.getElementById("checkhtmlbutton").style.display = "none"; <?php
         }
@@ -798,14 +801,14 @@ function OnPrint()
             ?> document.getElementById("checkhtmlbutton").style.display = "block"; <?php
         }
         ?>
-    	document.getElementById("printhtmlbutton").style.display = "block";	
+        document.getElementById("printhtmlbutton").style.display = "block";
     }
 <?php
-    }
+}
 ?>
 
 <?php
-    if ($showhtmlprintbutton) {
+if ($showhtmlprintbutton) {
 ?>
 
 /**
@@ -817,112 +820,104 @@ function OnPrint()
  
 var Base64 = {
  
-	// private property
-	_keyStr : "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=",
- 
-	// public method for decoding
-	decode : function (input) {
-		var output = "";
-		var chr1, chr2, chr3;
-		var enc1, enc2, enc3, enc4;
-		var i = 0;
- 
-		input = input.replace(/[^A-Za-z0-9\+\/\=]/g, "");
- 
-		while (i < input.length) {
- 
-			enc1 = this._keyStr.indexOf(input.charAt(i++));
-			enc2 = this._keyStr.indexOf(input.charAt(i++));
-			enc3 = this._keyStr.indexOf(input.charAt(i++));
-			enc4 = this._keyStr.indexOf(input.charAt(i++));
- 
-			chr1 = (enc1 << 2) | (enc2 >> 4);
-			chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);bgColor = "Black";
-			chr3 = ((enc3 & 3) << 6) | enc4;
- 
-			output = output + String.fromCharCode(chr1);
- 
-			if (enc3 != 64) {
-				output = output + String.fromCharCode(chr2);
-			}
-			if (enc4 != 64) {
-				output = output + String.fromCharCode(chr3);
-			}
- 		}
- 
-		output = Base64._utf8_decode(output);
- 
-		return output;
- 
-	}, 
- 
-	// private method for UTF-8 decoding
-	_utf8_decode : function (utftext) {
-		var string = "";
-		var i = 0;
-		var c = c1 = c2 = 0;
-		while ( i < utftext.length ) {
-			c = utftext.charCodeAt(i);
- 
-			if (c < 128) {
-				string += String.fromCharCode(c);
-				i++;
-			}
-			else if((c > 191) && (c < 224)) {
-				c2 = utftext.charCodeAt(i+1);
-				string += String.fromCharCode(((c & 31) << 6) | (c2 & 63));
-				i += 2;
-			}
-			else {
-				c2 = utftext.charCodeAt(i+1);
-				c3 = utftext.charCodeAt(i+2);
-				string += String.fromCharCode(((c & 15) << 12) | ((c2 & 63) << 6) | (c3 & 63));
-				i += 3;
-			}
- 
-		}
- 
-		return string;
-	}
- 
+    // private property
+    _keyStr : "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=",
+
+    // public method for decoding
+    decode : function (input) {
+        var output = "";
+        var chr1, chr2, chr3;
+        var enc1, enc2, enc3, enc4;
+        var i = 0;
+
+        input = input.replace(/[^A-Za-z0-9\+\/\=]/g, "");
+
+        while (i < input.length) {
+            enc1 = this._keyStr.indexOf(input.charAt(i++));
+            enc2 = this._keyStr.indexOf(input.charAt(i++));
+            enc3 = this._keyStr.indexOf(input.charAt(i++));
+            enc4 = this._keyStr.indexOf(input.charAt(i++));
+
+            chr1 = (enc1 << 2) | (enc2 >> 4);
+            chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);bgColor = "Black";
+            chr3 = ((enc3 & 3) << 6) | enc4;
+
+            output = output + String.fromCharCode(chr1);
+
+            if (enc3 != 64) {
+                output = output + String.fromCharCode(chr2);
+            }
+            if (enc4 != 64) {
+                output = output + String.fromCharCode(chr3);
+            }
+        }
+
+        output = Base64._utf8_decode(output);
+
+        return output;
+
+    }, 
+
+    // private method for UTF-8 decoding
+    _utf8_decode : function (utftext) {
+        var string = "";
+        var i = 0;
+        var c = c1 = c2 = 0;
+        while ( i < utftext.length ) {
+            c = utftext.charCodeAt(i);
+
+            if (c < 128) {
+                string += String.fromCharCode(c);
+                i++;
+            } else if((c > 191) && (c < 224)) {
+                c2 = utftext.charCodeAt(i+1);
+                string += String.fromCharCode(((c & 31) << 6) | (c2 & 63));
+                i += 2;
+            } else {
+                c2 = utftext.charCodeAt(i+1);
+                c3 = utftext.charCodeAt(i+2);
+                string += String.fromCharCode(((c & 15) << 12) | ((c2 & 63) << 6) | (c3 & 63));
+                i += 3;
+            }
+        }
+
+        return string;
+    }
 }
 
 // Called when the "checkhtml" link is clicked.
-function CheckHtmlClick()
-{
-	var i, TableCell, UserEntry, sData, solution;
-		
-	sData = "";
-	for (i = 0; i < Words; i++)
-	{
-	    solution = Base64.decode( HtmlSolutions[ i]);
-		// Get the user's entry for this word.
-		UserEntry = "";
-		for (j = 0; j < WordLength[i]; j++)
-		{
-			if (i <= LastHorizontalWord)
-				TableCell = CellAt(WordX[i] + j, WordY[i]);
-			else
-				TableCell = CellAt(WordX[i], WordY[i] + j);
-			if (TableCell.innerHTML.length > 0 && TableCell.innerHTML.toLowerCase() != "&nbsp;")
-				UserEntry += TableCell.innerHTML.toUpperCase();
-			else if( TableCell.innerHTML.toLowerCase() == "&nbsp;")
-			    UserEntry += " ";
-			else
-				UserEntry += "_";
-				
-			if( UserEntry[ j] != solution[ j])
-			{
-			    TableCell.innerHTML = "&nbsp;";
-			}
-		}
-
-	}
+function CheckHtmlClick() {
+    var i, TableCell, UserEntry, sData, solution;
+
+    sData = "";
+    for (i = 0; i < Words; i++) {
+        solution = Base64.decode( HtmlSolutions[ i]);
+        // Get the user's entry for this word.
+        UserEntry = "";
+        for (j = 0; j < WordLength[i]; j++) {
+            if (i <= LastHorizontalWord) {
+                TableCell = CellAt(WordX[i] + j, WordY[i]);
+            } else {
+                TableCell = CellAt(WordX[i], WordY[i] + j);
+            }
+            if (TableCell.innerHTML.length > 0 && TableCell.innerHTML.toLowerCase() != "&nbsp;") {
+                UserEntry += TableCell.innerHTML.toUpperCase();
+            } else if( TableCell.innerHTML.toLowerCase() == "&nbsp;") {
+                UserEntry += " ";
+            } else {
+                UserEntry += "_";
+            }
+
+            if( UserEntry[ j] != solution[ j]) {
+                TableCell.innerHTML = "&nbsp;";
+            }
+        }
+    }
 }
 <?php
-    }
+}
 
-    if ($showhtmlsolutions) {
+if ($showhtmlsolutions) {
 ?>
     function decodeutf8(utftext) {
         var string = "";
@@ -954,7 +949,7 @@ function CheckHtmlClick()
         return string;
     }
 <?php
-    }
+}
 ?>
 
 //-->
@@ -962,92 +957,91 @@ function CheckHtmlClick()
 
 </table></td>
 
-<?php 
-    if ($game->param3 == 2) {
-        echo '<td>&nbsp &nbsp &nbsp</td>';
-        game_cross_show_legends( $cross);
-    } else {
-        game_cross_show_welcome( $game);
-    }
+<?php
+if ($game->param3 == 2) {
+    echo '<td>&nbsp &nbsp &nbsp</td>';
+    game_cross_show_legends( $cross);
+} else {
+    game_cross_show_welcome( $game);
+}
 ?>
 
 </tr></table>
 
-<?php 
-    if ($onlyshow == false) {
-        echo '<div style="margin-top: 1em;">';
-
-        echo '<button id="checkbutton" type="button" onclick="CheckServerClick( 0);" style="display: none;">'.
-            get_string( 'cross_checkbutton', 'game');
+<?php
+if ($onlyshow == false) {
+    echo '<div style="margin-top: 1em;">';
+
+    echo '<button id="checkbutton" type="button" onclick="CheckServerClick( 0);" style="display: none;">'.
+    get_string( 'cross_checkbutton', 'game');
+    echo '</button>';
+
+    echo ' &nbsp;&nbsp;&nbsp;&nbsp;<button id="finishattemptbutton" '.
+    ' type="button" onclick="CheckServerClick( 1);" style="display: none;">'.
+    get_string( 'cross_endofgamebutton', 'game');
+    echo '</button>';
+    if ($game->param5 == 1 or $game->param5 == null) {
+        echo ' &nbsp;&nbsp;&nbsp;&nbsp;<button id="printbutton" type="button" '.
+        ' onclick="OnPrint( 0);" style="display: none;">'.get_string( 'print', 'game');
         echo '</button>';
+    }
 
-        echo ' &nbsp;&nbsp;&nbsp;&nbsp;<button id="finishattemptbutton" '.
-            ' type="button" onclick="CheckServerClick( 1);" style="display: none;">'.
-            get_string( 'cross_endofgamebutton', 'game');
-        echo '</button>';
-        if ($game->param5 == 1 or $game->param5 == null) {
-            echo ' &nbsp;&nbsp;&nbsp;&nbsp;<button id="printbutton" type="button" '.
-                ' onclick="OnPrint( 0);" style="display: none;">'.get_string( 'print', 'game');
-            echo '</button>';
-        }
+    echo "</div>\r\n";
+}
 
-        echo "</div>\r\n";
-    }
+if ($showhtmlsolutions or $showhtmlprintbutton) {
+    echo '<br>';
+}
 
-    if ($showhtmlsolutions or $showhtmlprintbutton) {
-        echo '<br>';
-    }
+if ($showhtmlsolutions) {
+    echo '<button id="checkhtmlbutton" type="button" '.
+    ' onclick="CheckHtmlClick();" visible=true>'.get_string( 'cross_checkbutton', 'game');
+    echo '</button>';
+}
 
+if ($showhtmlprintbutton) {
     if ($showhtmlsolutions) {
-        echo '<button id="checkhtmlbutton" type="button" '.
-            ' onclick="CheckHtmlClick();" visible=true>'.get_string( 'cross_checkbutton', 'game');
-        echo '</button>';
-    }
-
-    if ($showhtmlprintbutton) {
-        if ($showhtmlsolutions) {
-            echo "&nbsp;&nbsp;&nbsp;&nbsp;";
-        }
-        echo '<button id="printhtmlbutton" type="button" onclick="PrintHtmlClick( 0);" visible=true>'.get_string( 'print', 'game');
-        echo '</button>';
+        echo "&nbsp;&nbsp;&nbsp;&nbsp;";
     }
+    echo '<button id="printhtmlbutton" type="button" onclick="PrintHtmlClick( 0);" visible=true>'.get_string( 'print', 'game');
+    echo '</button>';
+}
 
-    if ($game->param3 == 2) {
-        echo '<td>&nbsp &nbsp &nbsp</td>';
-        game_cross_show_welcome( $game);
-    } else {
-        game_cross_show_legends( $cross);
-    }
+if ($game->param3 == 2) {
+    echo '<td>&nbsp &nbsp &nbsp</td>';
+    game_cross_show_welcome( $game);
+} else {
+    game_cross_show_legends( $cross);
+}
 
-    if ($game->bottomtext != '') {
-        echo '<br><br>'.$game->bottomtext;
-    }
+if ($game->bottomtext != '') {
+    echo '<br><br>'.$game->bottomtext;
+}
 
-    if ($attempt != false) {
-        if ($attempt->timefinish == 0 and $endofgame == 0) {
+if ($attempt != false) {
+    if ($attempt->timefinish == 0 and $endofgame == 0) {
 ?>
-    	<script language="JavaScript" type="text/javascript"><!--
-	    if (Initialized)
-	    {
+        <script language="JavaScript" type="text/javascript"><!--
+        if (Initialized) {
 <?php
-            if ($print == false) {
-                echo "document.getElementById(\"welcomemessage\").style.display = \"\";";
-            }
+if ($print == false) {
+    echo "document.getElementById(\"welcomemessage\").style.display = \"\";";
+}
 
-            if ($showsolution == false) {
-                ?>
-    	    	    document.getElementById("checkbutton").style.display = "";
-	        	    document.getElementById("finishattemptbutton").style.display = "";
-	        	    document.getElementById("printbutton").style.display = "";
-	        	<?php
-            }
+if ($showsolution == false) {
+    ?>
+    document.getElementById("checkbutton").style.display = "";
+    document.getElementById("finishattemptbutton").style.display = "";
+    document.getElementById("printbutton").style.display = "";
+<?php
+}
 ?>
-	    }
-	    //-->
-	    </script>
+}
+//-->
+</script>
 <?php
-        }
     }
+}
 
 ?>
 
@@ -1079,17 +1073,17 @@ function game_cross_show_welcome0( $game) {
 <div id="wordclue" class="cluebox"> </div>
 <div style="margin-top:1em;"><input id="wordentry" type="text" size="24"
 <?php
-    echo 'style="font-weight: bold; ';
-    if ($game->param6 == 0) {
-        echo 'text-transform:uppercase;';
-    }
-    echo '"';
+echo 'style="font-weight: bold; ';
+if ($game->param6 == 0) {
+    echo 'text-transform:uppercase;';
+}
+echo '"';
 ?>
  onkeypress="WordEntryKeyPress(event)" onchange="WordEntryKeyPress(event)" autocomplete="off"></div>
 <?php
-    if ($game->param3 == 2) {
-        game_cross_show_welcome( $game);
-    }
+if ($game->param3 == 2) {
+    game_cross_show_welcome( $game);
+}
 ?>
 <div id="worderror" style="color:#c00000;font-weight:bold;display:none;margin-top:1em;"></div>
 
diff --git a/cryptex/play.php b/cryptex/play.php
index 3ecb343..04a05bf 100644
--- a/cryptex/play.php
+++ b/cryptex/play.php
@@ -16,11 +16,13 @@
 
 /**
  * This page plays the cryptex game
- * 
+ *
  * @author  bdaloukas
  * @package game
  **/
 
+defined('MOODLE_INTERNAL') || die();
+
 require_once( "cryptexdb_class.php");
 
 function game_cryptex_continue( $id, $game, $attempt, $cryptexrec, $endofgame, $context) {
@@ -267,27 +269,25 @@ width:	240pt;
 
 <?php
 
-    if ($showhtmlprintbutton) {
-        echo '<br><button id="finishattemptbutton" type="button" onclick="OnEndGame();" >'.get_string( 'finish', 'game');
-        echo '</button>';
-        echo '<button id="printbutton" type="button" onclick="OnPrint();" >'.get_string( 'print', 'game');
-        echo '</button><br>';
-    }
+if ($showhtmlprintbutton) {
+    echo '<br><button id="finishattemptbutton" type="button" onclick="OnEndGame();" >'.get_string( 'finish', 'game');
+    echo '</button>';
+    echo '<button id="printbutton" type="button" onclick="OnPrint();" >'.get_string( 'print', 'game');
+    echo '</button><br>';
+}
 
-    if ($showhtmlprintbutton) {
+if ($showhtmlprintbutton) {
 ?>
 <script>
-    function PrintHtmlClick()
-    {
-    	document.getElementById("printbutton").style.display = "none";
-    	
+    function PrintHtmlClick() {
+        document.getElementById("printbutton").style.display = "none";
+
         window.print();     
 
-    	document.getElementById("printbutton").style.display = "block";	
+        document.getElementById("printbutton").style.display = "block";
     }
 
-    function OnPrint()
-    {
+    function OnPrint() {
 <?php
         global $CFG;
 
@@ -296,8 +296,7 @@ width:	240pt;
 ?>
     }
 
-    function OnEndGame()
-    {
+    function OnEndGame() {
 <?php
         global $CFG;
 
@@ -307,68 +306,65 @@ width:	240pt;
     }
 </script>
 <?php
-    }
+}
 
-    $i = 0;
-    $else = '';
-    $contextglossary = false;
-    foreach ($questions as $key => $q) {
-        $i++;
-        if ($showsolution == false) {
-            // When I want to show the solution a want to show the questions to.
-            if (array_key_exists( $q->id, $corrects)) {
-                continue;
-            }
+$i = 0;
+$else = '';
+$contextglossary = false;
+foreach ($questions as $key => $q) {
+    $i++;
+    if ($showsolution == false) {
+        // When I want to show the solution a want to show the questions to.
+        if (array_key_exists( $q->id, $corrects)) {
+            continue;
         }
+    }
 
-        $question = game_show_query( $game, $q, "$i. ".$q->questiontext, $context);
-        $question2 = strip_tags($question); // ADDED BY DP (AUG 2009) - fixes " breaking the Answer button for this question.
-
-        echo "<script>var msg{$q->id}=".json_encode( $question2).';</script>';
-        if (($onlyshow == false) and ($showsolution == false)) {
-            if (($game->param8 == 0) || ($game->param8 > $q->tries)) {
-                $question .= ' &nbsp;<input type="submit" value="'.
-                    get_string( 'answer').'" onclick="OnCheck( '.$q->id.",msg{$q->id});\" />";
-            }
-        }
-        echo $question;
+    $question = game_show_query( $game, $q, "$i. ".$q->questiontext, $context);
+    $question2 = strip_tags($question); // ADDED BY DP (AUG 2009) - fixes " breaking the Answer button for this question.
 
-        if ($showsolution) {
-            echo " &nbsp;&nbsp;&nbsp;$q->answertext<B></b>";
+    echo "<script>var msg{$q->id}=".json_encode( $question2).';</script>';
+    if (($onlyshow == false) and ($showsolution == false)) {
+        if (($game->param8 == 0) || ($game->param8 > $q->tries)) {
+            $question .= ' &nbsp;<input type="submit" value="'.
+            get_string( 'answer').'" onclick="OnCheck( '.$q->id.",msg{$q->id});\" />";
         }
-        echo '<br>';
     }
+    echo $question;
 
-    if ($game->bottomtext != '') {
-        echo '<br><br>'.$game->bottomtext;
+    if ($showsolution) {
+        echo " &nbsp;&nbsp;&nbsp;$q->answertext<B></b>";
     }
+    echo '<br>';
+}
+
+if ($game->bottomtext != '') {
+    echo '<br><br>'.$game->bottomtext;
+}
 
 ?>
-		<script>
-			function OnCheck( id, question)
-			{
-				document.getElementById("q").value = id;
-				document.getElementById("wordclue").innerHTML = question;
-
-				// Finally, show the answer box.
-				document.getElementById("answerbox").style.display = "block";
-				try
-				{
-					document.getElementById("answer").focus();
-					document.getElementById("answer").select();
-				}
-				catch (e)
-				{
-				}
-			}
-		</script>
+    <script>
+        function OnCheck( id, question) {
+            document.getElementById("q").value = id;
+            document.getElementById("wordclue").innerHTML = question;
+
+            // Finally, show the answer box.
+            document.getElementById("answerbox").style.display = "block";
+            try {
+                document.getElementById("answer").focus();
+                document.getElementById("answer").select();
+            }
+            catch (e)
+            {
+            }
+        }
+    </script>
 <?php
-
-    if ($print) {
-        echo '<body onload="window.print()">';
-    } else {
-        echo '<body>';
-    }
+if ($print) {
+    echo '<body onload="window.print()">';
+} else {
+    echo '<body>';
+}
 }
 
 function game_cryptex_onfinished( $id, $game, $attempt, $cryptexrec) {
diff --git a/db/access.php b/db/access.php
index 76fe84a..8a1db34 100644
--- a/db/access.php
+++ b/db/access.php
@@ -16,7 +16,7 @@
 
 defined('MOODLE_INTERNAL') || die();
 
-/**
+/*
  * Capability definitions for the game module.
  *
  * For naming conventions, see lib/db/access.php.
diff --git a/db/importsnakes.php b/db/importsnakes.php
index 33dfe49..7f1374c 100644
--- a/db/importsnakes.php
+++ b/db/importsnakes.php
@@ -14,6 +14,8 @@
 // You should have received a copy of the GNU General Public License
 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
 
+defined('MOODLE_INTERNAL') || die();
+
 game_importsnakes();
 
 function game_importsnakes() {
diff --git a/db/importsudoku.php b/db/importsudoku.php
index cdc93f5..76bf847 100644
--- a/db/importsudoku.php
+++ b/db/importsudoku.php
@@ -14,6 +14,8 @@
 // You should have received a copy of the GNU General Public License
 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
 
+defined('MOODLE_INTERNAL') || die();
+
 $DB->execute( "INSERT INTO {game_sudoku_database}( level, opened, data) VALUES (1, 26, ".
     "'A73IEDB8642I16875CF85237A94539712D6HBGFC849158415FI3G28913BE64GFDB89753175C41692H')");
 $DB->execute( "INSERT INTO {game_sudoku_database}( level, opened, data) VALUES (1, 29, ".
diff --git a/db/upgrade.php b/db/upgrade.php
index 3aca593..d8a39ba 100644
--- a/db/upgrade.php
+++ b/db/upgrade.php
@@ -33,6 +33,8 @@
  * before any action that may take longer time to finish.
  */
 
+defined('MOODLE_INTERNAL') || die();
+
 function xmldb_game_upgrade($oldversion) {
 
     global $CFG, $DB;
@@ -1544,15 +1546,14 @@ function xmldb_game_upgrade($oldversion) {
 
         upgrade_mod_savepoint(true, $ver, 'game');
     }
-    
-    if ($oldversion < ($ver = 2016062603)) {  
+
+    if ($oldversion < ($ver = 2016062603)) {
         $table = new xmldb_table('game_cross');
         $field = new xmldb_field('createscore', XMLDB_TYPE_FLOAT, null, null, null, null, '0');
 
-        // Launch change of type for field thisfield
+        // Launch change of type for field thisfield.
         $dbman->change_field_type($table, $field);
     }
-    
-    
+
     return true;
 }
diff --git a/export.php b/export.php
index 0d420f7..47d630c 100644
--- a/export.php
+++ b/export.php
@@ -14,9 +14,9 @@
 // You should have received a copy of the GNU General Public License
 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
 
-/**
+/*
  * This page exports a game to another platform e.g. html, jar
- * 
+ *
  * @author  bdaloukas
  * @package game
  **/
diff --git a/export/html/snakes/css/game.css b/export/html/snakes/css/game.css
index 936fe91..bd597b9 100644
--- a/export/html/snakes/css/game.css
+++ b/export/html/snakes/css/game.css
@@ -1,37 +1,33 @@
 .nodis
 {
-	list-style-type:none;
+    list-style-type:none;
 }
 
 #cont
 {
-	position:relative;
-	display:none;
+    position:relative;
+    display:none;
 }
 
-
-
 .img1
 {
-	position:absolute;
-	display:none;
+    position:absolute;
+    display:none;
 }
 
-
 #dicecont
 {
-	float:right;
-	width:250px;
-	background-image: url(../images/meter.png);
-	background-repeat: repeat;
-	font-family: Arial, Helvetica, sans-serif;
-	font-weight: normal;
-	/*font-variant: small-caps;*/
-	color: #FFFFFF;
-	border: 0.5em solid #333333;
-	top: 30px;
-	position: absolute;
-	left: 500px;
-	font-size: 14px;
-	padding: 10px;
+    float:right;
+    width:250px;
+    background-image: url(../images/meter.png);
+    background-repeat: repeat;
+    font-family: Arial, Helvetica, sans-serif;
+    font-weight: normal;
+    color: #FFFFFF;
+    border: 0.5em solid #333333;
+    top: 30px;
+    position: absolute;
+    left: 500px;
+    font-size: 14px;
+    padding: 10px;
 }
diff --git a/export/html/snakes/css/modal.css b/export/html/snakes/css/modal.css
index 976ab1f..cc0ab50 100644
--- a/export/html/snakes/css/modal.css
+++ b/export/html/snakes/css/modal.css
@@ -1,39 +1,39 @@
 @charset "utf-8";
 #fade { /*--Transparent background layer--*/
-	display: none; /*--hidden by default--*/
-	background: #000;
-	position: fixed; left: 0; top: 0;
-	width: 100%; height: 100%;
-	opacity: .80;
-	z-index: 9999;
+    display: none; /*--hidden by default--*/
+    background: #000;
+    position: fixed; left: 0; top: 0;
+    width: 100%; height: 100%;
+    opacity: .80;
+    z-index: 9999;
 }
 .popup_block{
-	display: none; /*--hidden by default--*/
-	background: #fff;
-	padding: 20px;
-	border: 20px solid #ddd;
-	float: left;
-	font-size: 1.2em;
-	position: fixed;
-	top: 50%; left: 50%;
-	z-index: 99999;
-	/*--CSS3 Box Shadows--*/
-	-webkit-box-shadow: 0px 0px 20px #000;
-	-moz-box-shadow: 0px 0px 20px #000;
-	box-shadow: 0px 0px 20px #000;
-	/*--CSS3 Rounded Corners--*/
-	-webkit-border-radius: 10px;
-	-moz-border-radius: 10px;
-	border-radius: 10px;
+    display: none; /*--hidden by default--*/
+    background: #fff;
+    padding: 20px;
+    border: 20px solid #ddd;
+    float: left;
+    font-size: 1.2em;
+    position: fixed;
+    top: 50%; left: 50%;
+    z-index: 99999;
+    /*--CSS3 Box Shadows--*/
+    -webkit-box-shadow: 0px 0px 20px #000;
+    -moz-box-shadow: 0px 0px 20px #000;
+    box-shadow: 0px 0px 20px #000;
+    /*--CSS3 Rounded Corners--*/
+    -webkit-border-radius: 10px;
+    -moz-border-radius: 10px;
+    border-radius: 10px;
 }
 img.btn_close {
-	float: right;
-	margin: -55px -55px 0 0;
+    float: right;
+    margin: -55px -55px 0 0;
 }
 /*--Making IE6 Understand Fixed Positioning--*/
 *html #fade {
-	position: absolute;
+    position: absolute;
 }
 *html .popup_block {
-	position: absolute;
+    position: absolute;
 }
diff --git a/export/html/snakes/css/snakes.css b/export/html/snakes/css/snakes.css
index d73d048..4047561 100644
--- a/export/html/snakes/css/snakes.css
+++ b/export/html/snakes/css/snakes.css
@@ -2,130 +2,126 @@
 Husain Limdiyawala(MSc IT DA-IICT)
 Any Duplication of this code should be avoided*/
 
-
 .blocks
 {
-	font-family: Arial, Helvetica, sans-serif;
-	/*color: #FFFFFF;*/
-	margin-left: 5px;
-	margin-top:2px;
-	margin-bottom:2px;
-	padding: 0px;
-	float:left;
-	height: 52px;
-	width: 52px;
-	display:block;
-	position:relative;
-	background-image: url(../square52.png);
+    font-family: Arial, Helvetica, sans-serif;
+    margin-left: 5px;
+    margin-top:2px;
+    margin-bottom:2px;
+    padding: 0px;
+    float:left;
+    height: 52px;
+    width: 52px;
+    display:block;
+    position:relative;
+    background-image: url(../square52.png);
 }
 
 .nodis
 {
-	list-style-type:none;
+    list-style-type:none;
 }
 
 #cont
 {
-	position:relative;
-	display:none;
+    position:relative;
+    display:none;
 }
 
 #diceimg
 {
-	display:none;
-	width:45px;
+    display:none;
+    width:45px;
     height:44px;
 }
 
 .img1
 {
-	position:absolute;
-	display:none;
+    position:absolute;
+    display:none;
 }
 
 body
 {
-background:#CCCCCC;
+    background:#CCCCCC;
 }
 
 #player
 {
-	display:none;
-	z-index:5;
-	position:absolute;
+    display:none;
+    z-index:5;
+    position:absolute;
 }
 
 #players
 {
-	margin-top: 0.3em;
-	margin-bottom: 1em;
+    margin-top: 0.3em;
+    margin-bottom: 1em;
 }
 
 #dicecont
 {
-	float:right;
-	width:170px;
-	background-image: url(../images/meter.png);
-	background-repeat: repeat;
-	font-family: Arial, Helvetica, sans-serif;
-	font-weight: bold;
-	/*font-variant: small-caps;*/
-	color: #FFFFFF;
-	border: 0.5em solid #333333;
-	top: 30px;
-	position: absolute;
-	right: 880px;
+    float:right;
+    width:170px;
+    background-image: url(../images/meter.png);
+    background-repeat: repeat;
+    font-family: Arial, Helvetica, sans-serif;
+    font-weight: bold;
+    color: #FFFFFF;
+    border: 0.5em solid #333333;
+    top: 30px;
+    position: absolute;
+    right: 880px;
 }
 
 #playbtn
 {
-	margin-left:0.5em;
-	font-family: Arial, Helvetica, sans-serif;
-	font-weight: bold;
-	/*font-variant: small-caps;*/
-	color: #000000;
-	background-color: #FC0;
-	padding: 1em;
+    margin-left:0.5em;
+    font-family: Arial, Helvetica, sans-serif;
+    font-weight: bold;
+    color: #000000;
+    background-color: #FC0;
+    padding: 1em;
 }
 
 /*-- from modal window coding --*/
 
 #fade { /*--Transparent background layer--*/
-	display: none; /*--hidden by default--*/
-	background: #000;
-	position: fixed; left: 0; top: 0;
-	width: 100%; height: 100%;
-	opacity: .80;
-	z-index: 9999;
+    display: none; /*--hidden by default--*/
+    background: #000;
+    position: fixed; left: 0; top: 0;
+    width: 100%; height: 100%;
+    opacity: .80;
+    z-index: 9999;
 }
 .popup_block{
-	display: none; /*--hidden by default--*/
-	background: #fff;
-	padding: 20px;
-	border: 20px solid #ddd;
-	float: left;
-	font-size: 1.2em;
-	position: fixed;
-	top: 50%; left: 50%;
-	z-index: 99999;
-	/*--CSS3 Box Shadows--*/
-	-webkit-box-shadow: 0px 0px 20px #000;
-	-moz-box-shadow: 0px 0px 20px #000;
-	box-shadow: 0px 0px 20px #000;
-	/*--CSS3 Rounded Corners--*/
-	-webkit-border-radius: 10px;
-	-moz-border-radius: 10px;
-	border-radius: 10px;
+    display: none; /*--hidden by default--*/
+    background: #fff;
+    padding: 20px;
+    border: 20px solid #ddd;
+    float: left;
+    font-size: 1.2em;
+    position: fixed;
+    top: 50%; left: 50%;
+    z-index: 99999;
+    /*--CSS3 Box Shadows--*/
+    -webkit-box-shadow: 0px 0px 20px #000;
+    -moz-box-shadow: 0px 0px 20px #000;
+    box-shadow: 0px 0px 20px #000;
+    /*--CSS3 Rounded Corners--*/
+    -webkit-border-radius: 10px;
+    -moz-border-radius: 10px;
+    border-radius: 10px;
 }
 img.btn_close {
-	float: right;
-	margin: -55px -55px 0 0;
-	border: 0;
+    float: right;
+    margin: -55px -55px 0 0;
+    border: 0;
 }
 /*--Making IE6 Understand Fixed Positioning--*/
 *html #fade {
-	position: absolute;
+    position: absolute;
 }
 *html .popup_block {
-	position: absolute;
+    position: absolute;
 }
diff --git a/export/html/snakes/css/style.css b/export/html/snakes/css/style.css
index f66fe34..7f5a35e 100644
--- a/export/html/snakes/css/style.css
+++ b/export/html/snakes/css/style.css
@@ -1,15 +1,15 @@
 body {
-	background-color: #efefef;
+    background-color: #efefef;
 }
 
 body, html, input {
-	font-family:Verdana, Arial, Helvetica, sans-serif;
-	font-size:11px;
-	color: #333333;
+    font-family:Verdana, Arial, Helvetica, sans-serif;
+    font-size:11px;
+    color: #333333;
 }
 
 .info {
-	font-style:italic;
-	font-size: 0.9em;
-	color: #666666;
-}
\ No newline at end of file
+    font-style:italic;
+    font-size: 0.9em;
+    color: #666666;
+}
diff --git a/export/html/snakes/css/subModal.css b/export/html/snakes/css/subModal.css
index 7b0f465..30e7958 100644
--- a/export/html/snakes/css/subModal.css
+++ b/export/html/snakes/css/subModal.css
@@ -2,68 +2,69 @@
  * POPUP CONTAINER STYLES
  */
 #popupMask {
-	position: absolute;
-	z-index: 200;
-	top: 0px;
-	left: 0px;
-	width: 100%;
-	height: 100%;
-	opacity: .4;
-	filter: alpha(opacity=50);
-	/* this hack is so it works in IE
+    position: absolute;
+    z-index: 200;
+    top: 0px;
+    left: 0px;
+    width: 100%;
+    height: 100%;
+    opacity: .4;
+    filter: alpha(opacity=50);
+    /* this hack is so it works in IE
      * I find setting the color in the css gives me more flexibility
-	 * than the PNG solution.
-	 */
-	background-color:transparent !important;
-	background-color: #333333;
-	/* this hack is for opera support
-	 * you can uncomment the background-image if you don't care about opera.
-	 * this gives you the flexibility to use any bg color that you want, instead of the png
-	 */
-	background-image/**/: url("../images/maskBG.png") !important; // For browsers Moz, Opera, etc.
-	background-image:none;
-	background-repeat: repeat;
-	display:none;
+        * than the PNG solution.
+    */
+    background-color:transparent !important;
+    background-color: #333333;
+    /* this hack is for opera support
+     * you can uncomment the background-image if you don't care about opera.
+     * this gives you the flexibility to use any bg color that you want, instead of the png
+     */
+    background-image/**/: url("../images/maskBG.png") !important; // For browsers Moz, Opera, etc.
+    background-image:none;
+    background-repeat: repeat;
+    display:none;
 }
+
 #popupContainer {
-	position: absolute;
-	z-index: 201;
-	top: 0px;
-	left: 0px;
-	display:none;
-	padding: 0px;
+    position: absolute;
+    z-index: 201;
+    top: 0px;
+    left: 0px;
+    display:none;
+    padding: 0px;
 }
 #popupInner {
-	border: 2px solid #000000;
-	background-color: #ffffff;
+    border: 2px solid #000000;
+    background-color: #ffffff;
 }
 
 #popupFrame {
-	margin: 0px;
-	width: 100%;
-	height: 100%;
-	position: relative;
-	z-index: 202;
+    margin: 0px;
+    width: 100%;
+    height: 100%;
+    position: relative;
+    z-index: 202;
 }
 #popupTitleBar {
-	background-color: #090;
-	color: # 000;
-	font-weight: bold;
-	height: 1.3em;
-	padding: 5px;
-	border-bottom: 2px solid #000000;
-	border-top: 1px solid #78A3F2;
-	border-left: 1px solid #78A3F2;
-	border-right: 1px solid #204095;
-	position: relative;
-	z-index: 203;
+    background-color: #090;
+    color: # 000;
+    font-weight: bold;
+    height: 1.3em;
+    padding: 5px;
+    border-bottom: 2px solid #000000;
+    border-top: 1px solid #78A3F2;
+    border-left: 1px solid #78A3F2;
+    border-right: 1px solid #204095;
+    position: relative;
+    z-index: 203;
 }
 #popupTitle {
-	float:left;
-	font-size: 1.1em;
+    float:left;
+    font-size: 1.1em;
 }
 #popupControls {
-	float: right;
-	cursor: pointer;
-	cursor: hand;
+    float: right;
+    cursor: pointer;
+    cursor: hand;
 }
diff --git a/export/html/snakes/js/snakes-mod.js b/export/html/snakes/js/snakes-mod.js
index 24ec151..b7c8e00 100644
--- a/export/html/snakes/js/snakes-mod.js
+++ b/export/html/snakes/js/snakes-mod.js
@@ -6,7 +6,7 @@ $(document).ready(function () {
 });
 
 
-//Global Variables
+// Global Variables.
 var totblocks = 0;
 var data = "";
 var currentblock = 0;
@@ -20,12 +20,12 @@ var destsnake = new Array(4);
 
 var ladsrc = new Array(3);
 var laddest = new Array(3);
-var quest = new Array(); //available questions along with multiple answers
-var COR_answered = new Array(); //record all questions (along with answers) the user responded CORRECTLY
-var WRO_answered = new Array(); //record all questions (along with answers) the user responded WRONGLY
+var quest = new Array(); // Available questions along with multiple answers.
+var COR_answered = new Array(); // Record all questions (along with answers) the user responded CORRECTLY.
+var WRO_answered = new Array(); // Record all questions (along with answers) the user responded WRONGLY.
 var user = new Array();
 
-//Constract table with questions and answers and pick question to display
+// Constract table with questions and answers and pick question to display.
 
 quest[0] = "Spell 1";
 quest[1] = "one";
@@ -45,30 +45,29 @@ quest[14] = "three";
 quest[15] = "one";
 z = 0;
 for (z = 0; quest[z] != null; z++) {
-    // Do nothing
+    // Do nothing.
 }
 allQuest = z / 4;
 
-function selectQuest(all)
-{
+function selectQuest(all) {
     pickOne = Math.floor((Math.random() * all));
     return pickOne;
 }
 
-//The Below Function will hide all the snakes
+// The Below Function will hide all the snakes.
 
 function hideAll() {
-	document.getElementById("img1").style.display = "none";
-	document.getElementById("img2").style.display = "none";
-	document.getElementById("img3").style.display = "none";
-	document.getElementById("img4").style.display = "none";
+    document.getElementById("img1").style.display = "none";
+    document.getElementById("img2").style.display = "none";
+    document.getElementById("img3").style.display = "none";
+    document.getElementById("img4").style.display = "none";
 
-	document.getElementById("lad1").style.display = "none";
-	document.getElementById("lad2").style.display = "none";
+    document.getElementById("lad1").style.display = "none";
+    document.getElementById("lad2").style.display = "none";
     document.getElementById("lad3").style.display = "none";
 }
 
-//The Below Function will Render The Main Board
+// The Below Function will Render The Main Board.
 
 function paintBoard(a) {
     totblocks = (a * a);
@@ -88,42 +87,42 @@ function paintBoard(a) {
             currentblock -= (a - 1);
         }
     } else {
-            currentblock = (a * a);
-            for (j = 0; j < (a / 2); j++) {
-                for (i = 0; i < a; i++) {
-                    data += "<div class='blocks' id='" + currentblock + "'>" + currentblock + "</div>";
-                    currentblock--;
-                }
-
-                currentblock -= (a - 1);
-
-                if (currentblock < 2) {
-                    break;
-                }
-
-                for (i = 0; i < a; i++) {
-                    data += "<div id='" + currentblock + "' class ='blocks'>" + currentblock + "</div>";
-                    currentblock++;
-				}
-                currentblock -= (a + 1);
-		}
-	}
+        currentblock = (a * a);
+        for (j = 0; j < (a / 2); j++) {
+            for (i = 0; i < a; i++) {
+                data += "<div class='blocks' id='" + currentblock + "'>" + currentblock + "</div>";
+                currentblock--;
+            }
+
+            currentblock -= (a - 1);
+
+            if (currentblock < 2) {
+                break;
+            }
+
+            for (i = 0; i < a; i++) {
+                data += "<div id='" + currentblock + "' class ='blocks'>" + currentblock + "</div>";
+                currentblock++;
+            }
+            currentblock -= (a + 1);
+        }
+    }
     document.getElementById("cont").style.width = (a * 52 + 52) + "px"
 
-	document.getElementById("cont").innerHTML = data;
-	$("#cont").slideDown("slow");
-	$("#cont").effect("shake",3000);
-	$("img:hidden").fadeIn(5000);
+    document.getElementById("cont").innerHTML = data;
+    $("#cont").slideDown("slow");
+    $("#cont").effect("shake",3000);
+    $("img:hidden").fadeIn(5000);
 
-	if (a == 6) {
-	    registerSnake(158, 196, "img1", 14, 3, 0);
-	    registerSnake(62, 183, "img2", 27, 24, 1);
-	    registerSnake(175, 18, "img3", 18, 4, 2);
-	    registerSnake(10, 45, "img4", 32, 23, 3);
+    if (a == 6) {
+        registerSnake(158, 196, "img1", 14, 3, 0);
+        registerSnake(62, 183, "img2", 27, 24, 1);
+        registerSnake(175, 18, "img3", 18, 4, 2);
+        registerSnake(10, 45, "img4", 32, 23, 3);
 
-	    registerLadder(27, 132, "lad1", 28, 34, 0);
-	    registerLadder(90, 22, "lad2", 19, 30, 1);
-	    registerLadder(179, 137, "lad3", 2, 16, 2);
+        registerLadder(27, 132, "lad1", 28, 34, 0);
+        registerLadder(90, 22, "lad2", 19, 30, 1);
+        registerLadder(179, 137, "lad3", 2, 16, 2);
     } else if (a == 8) {
         registerSnake(300, 380, "img1", 44, 29, 0);
         registerSnake(180, 550, "img2", 51, 46, 1);
@@ -136,98 +135,97 @@ function paintBoard(a) {
     }
 }
 
-//The below Function will simulate throwing of a dice
+// The below Function will simulate throwing of a dice.
 function throwDice(i) {
-	randomno = Math.floor((Math.random() * 6)) + 1;
-	document.getElementById("diceimg").src = "images/dice_" + randomno + ".PNG";
+    randomno = Math.floor((Math.random() * 6)) + 1;
+    document.getElementById("diceimg").src = "images/dice_" + randomno + ".PNG";
     document.getElementById("diceimg").style.display = "block";
-	if (lastposition[i] > 0) {
+    if (lastposition[i] > 0) {
         document.getElementById(lastposition[i]).style.background = "url(images/square52.png)";
-	}
-	tots[i] += randomno;
+    }
+    tots[i] += randomno;
 
-	if (totblocks - tots[i] >= 0) {
+    if (totblocks - tots[i] >= 0) {
         lastposition[i] = tots[i];
         document.getElementById(tots[i]).style.background = "url(images/pawn1.png)";
-	} else {
+    } else {
         tots[i] -= randomno;
         document.getElementById(tots[i]).style.background = "url(images/pawn1.png)";
-	}
+    }
 }
 
 // The below Function Checks The Snake Biting for a user.
 function snakescheck(k) {
-	i = 0;
-
-	for(i = 0; i <= srcsnake.length; i++) {
-		if (srcsnake[i] == tots[k]) {
-			alert("Ωχ! Σε τσίμπησε φίδι στο τετράγωνο " + srcsnake[i] + " και θα πρέπει να γυρίσεις στο τετράγωνο " + destsnake[i] + ", εκτός κι αν απαντήσεις σωστά στην ερώτηση που ακολουθεί.");
-			document.getElementById(destsnake[i]).style.background = "url(images/pawn1.png)";
-			document.getElementById(tots[k]).style.background = "url(images/square52.png)";
-			lastposition[k] = destsnake[i];
-			tots[k] = destsnake[i];
-			break;
-		}
-	}
+    i = 0;
+
+    for(i = 0; i <= srcsnake.length; i++) {
+        if (srcsnake[i] == tots[k]) {
+            alert("Ωχ! Σε τσίμπησε φίδι στο τετράγωνο " + srcsnake[i] + " και θα πρέπει να γυρίσεις στο τετράγωνο " + destsnake[i] + ", εκτός κι αν απαντήσεις σωστά στην ερώτηση που ακολουθεί.");
+            document.getElementById(destsnake[i]).style.background = "url(images/pawn1.png)";
+            document.getElementById(tots[k]).style.background = "url(images/square52.png)";
+            lastposition[k] = destsnake[i];
+            tots[k] = destsnake[i];
+            break;
+        }
+    }
 
     if (!checkWin(k)) {
-		alert("???d?se?!S???a??t???a!");
+        alert("???d?se?!S???a??t???a!");
     }
 }
 
-//The below function checks the ladders for a user
+// The below function checks the ladders for a user.
 function laddercheck(k) {
-	i = 0;
+    i = 0;
 
-	for(i = 0; i <= ladsrc.length; i++) {
-		if (ladsrc[i] == tots[k]) {
+    for(i = 0; i <= ladsrc.length; i++) {
+        if (ladsrc[i] == tots[k]) {
             alert("Υπάρχει μια σκάλα στο τετράγωνο " + ladsrc[i] + " και θα σας οδηγήσει κατευθείαν στο τετράγωνο " + laddest[i] + "αν απαντήσεις σωστά στην ερώτηση που ακολουθεί.");
-			document.getElementById(laddest[i]).style.background = "url(images/pawn1.png)";
-			document.getElementById(tots[k]).style.background = "url(images/square52.png)";
-			lastposition[k] = laddest[i];
-			tots[k] = laddest[i];
-			break;
-		}
-	}
-	if(!checkWin(k)) {
-		alert("You have won!");
+            document.getElementById(laddest[i]).style.background = "url(images/pawn1.png)";
+            document.getElementById(tots[k]).style.background = "url(images/square52.png)";
+            lastposition[k] = laddest[i];
+            tots[k] = laddest[i];
+            break;
+        }
+    }
+    if(!checkWin(k)) {
+        alert("You have won!");
     }
 }
 
-//The below Function checks for pythons
+// The below Function checks for pythons.
 
 function pythoncheck(k) {
     i = 0;
 
-	for (i = 0; i < pythons.length; i++) {
-
-		if (pythons[i] == tots[k]) {
-			alert("You have been eaten up by a python.Your game is over");
-			document.getElementById(tots[k]).style.background = "url(images/csnake.gif) #000000";
-			lastposition[k] = null;
-			tots[k] = null;
-			break;
-		}
-	}
+    for (i = 0; i < pythons.length; i++) {
+        if (pythons[i] == tots[k]) {
+            alert("You have been eaten up by a python.Your game is over");
+            document.getElementById(tots[k]).style.background = "url(images/csnake.gif) #000000";
+            lastposition[k] = null;
+            tots[k] = null;
+            break;
+        }
+    }
 }
 
 // The below function will register a snake.
 function registerSnake(tp, lft, dv, src, dest, i) {
-	document.getElementById(dv).style.top = tp + "px";
-	document.getElementById(dv).style.left = lft + "px";
-	srcsnake[i] = src;
-	destsnake[i] = dest;
+    document.getElementById(dv).style.top = tp + "px";
+    document.getElementById(dv).style.left = lft + "px";
+    srcsnake[i] = src;
+    destsnake[i] = dest;
 }
 
-// The below function will register a ladder..
+// The below function will register a ladder.
 function registerLadder(tp, lft, dv, src, dest, i) {
-	document.getElementById(dv).style.top = tp + "px";
-	document.getElementById(dv).style.left = lft + "px";
-	ladsrc[i] = src;
-	laddest[i] = dest;
+    document.getElementById(dv).style.top = tp + "px";
+    document.getElementById(dv).style.left = lft + "px";
+    ladsrc[i] = src;
+    laddest[i] = dest;
 }
 
-//The below function checks the change in the boardtype selection combobox
+// The below function checks the change in the boardtype selection combobox.
 function selectBoard() {
     totblocks = 0;
     data = "";
@@ -244,24 +242,24 @@ function selectBoard() {
 function selectPlayer() {
     if (document.getElementById("players").value != null) {
         user[document.getElementById("players").value - 1] = 0;
-		tots[document.getElementById("players").value - 1] = 0;
-		lastposition[document.getElementById("players").value - 1] = 0;
-		for(var j = 0; j < lastposition.length; j++) {
+        tots[document.getElementById("players").value - 1] = 0;
+        lastposition[document.getElementById("players").value - 1] = 0;
+        for(var j = 0; j < lastposition.length; j++) {
             lastposition[j] = 0;
             tots[j] = 0;
-		}
-	}
+        }
+    }
 }
 
 // The below function starts the play.
 function play() {
-	if (tots[l] != null) {
+    if (tots[l] != null) {
         disableField();
         document.getElementById("status").innerHTML = "<ul class='nodis'><li>O Paiktis " + (l + 1) + " </li><li>brisketai sto tetragwno " + tots[l] + "</li><li></li></ul>";
 
         Question();
         document.getElementById("status").innerHTML = "<ul class='nodis'><li>O Paiktis " + (l + 1) + " </li><li>vrisketai sto tetragwno " + tots[l] + "</li></ul>";
-	} else {
+    } else {
         document.getElementById("status").innerHTML = "<ul class='nodis'><li>Molis exases...</li></ul>";
     }
 
@@ -277,7 +275,7 @@ function doit(i) {
     throwDice(i);
     if (checkWin(i)) {
         snakescheck(i);
-		laddercheck(i);
+        laddercheck(i);
     } else {
         alert("ÏëïêëÞñùóåò ôçí ðßóôá, óõã÷áñçôÞñéá!!!");
     }
@@ -285,7 +283,7 @@ function doit(i) {
 
 // The below function checks whether the player has won or not.
 function checkWin(i) {
-	if( tots[i] == totblocks) {
+    if( tots[i] == totblocks) {
         return false;
     } else {
         return true;
@@ -294,8 +292,8 @@ function checkWin(i) {
 
 // The below function will disable both the combobox .
 function disableField() {
-	document.getElementById("players").disabled = "disabled";
-	document.getElementById("boardtype").disabled = "disabled";
+    document.getElementById("players").disabled = "disabled";
+    document.getElementById("boardtype").disabled = "disabled";
 }
 
 function Question() {
@@ -312,6 +310,6 @@ function Question() {
         WRO_answered.concat(quest.splice(picked * 4, 4));
     }
 
-    // Remove question and answers from available questions - (thus not allowing to have a Repeated question) ---XOXOXO
+    // Remove question and answers from available questions - (thus not allowing to have a Repeated question).
     allQuest--;
 }
diff --git a/exporthtml.php b/exporthtml.php
index a285b29..d002712 100644
--- a/exporthtml.php
+++ b/exporthtml.php
@@ -14,13 +14,15 @@
 // You should have received a copy of the GNU General Public License
 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
 
-/**
+/*
  * This page export the game to html for games: cross, hangman
- * 
+ *
  * @author  bdaloukas
  * @package game
  **/
 
+defined('MOODLE_INTERNAL') || die();
+
 require_once( "locallib.php");
 require_once( "exportjavame.php");
 
diff --git a/exporthtml_hangman.php b/exporthtml_hangman.php
index 58cea1d..9629de5 100644
--- a/exporthtml_hangman.php
+++ b/exporthtml_hangman.php
@@ -14,9 +14,9 @@
 // You should have received a copy of the GNU General Public License
 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
 
-/**
+/*
  * This page export the game hangman to html
- * 
+ *
  * @author  bdaloukas
  * @package game
  **/
@@ -129,7 +129,7 @@ var display_word = "";
 var used_letters = "";
 var wrong_guesses = 0;
 var used_letters_all = "";
-var all_letters = new Array(<?php 
+var all_letters = new Array(<?php
 $len = game_strlen( $allletters);
 for ($i = 0; $i < $len; $i++) {
     if ($i > 0) {
@@ -149,24 +149,21 @@ function selectLetter(l)
     {
         return;
     }
-	
-	used_letters_all += l;
-	
-	if( to_guess.indexOf(l) == -1)
-	{
+
+    used_letters_all += l;
+
+    if( to_guess.indexOf(l) == -1) {
         used_letters += l;
         document.getElementById('usedLetters').innerHTML = used_letters;
     }
-	
-    if (to_guess.indexOf(l) != -1)
-    {
+
+    if (to_guess.indexOf(l) != -1) {
         // correct letter guess
         pos = 0;
         temp_mask = display_word;
 
-        while (to_guess.indexOf(l, pos) != -1)
-        {
-            pos = to_guess.indexOf(l, pos);			
+        while (to_guess.indexOf(l, pos) != -1) {
+            pos = to_guess.indexOf(l, pos);
             end = pos + 1;
 
             start_text = temp_mask.substring(0, pos);
@@ -178,16 +175,14 @@ function selectLetter(l)
 
         display_word = temp_mask;
         document.getElementById('displayWord').innerHTML=display_word;
-		
-        if (display_word.indexOf("#") == -1)
-        {
+
+        if (display_word.indexOf("#") == -1) {
             // won
             alert( "<?php echo game_get_string_lang( 'win', 'game', $lang); ?>");
             can_play = false;
             reset();
         }
-    }else
-    {
+    } else {
         wrong_guesses++;
 
 <?php
@@ -198,8 +193,7 @@ if ($html->type != 'hangmanp') {
 <?php
 }
 ?>
-        if (wrong_guesses == <?php echo $game->param10 + 1;?>)
-        {
+        if (wrong_guesses == <?php echo $game->param10 + 1;?>) {
             // lost
             alert( "<?php echo strip_tags( game_get_string_lang( 'hangman_loose', 'game', $lang)); ?>");
             can_play = false;
@@ -216,8 +210,7 @@ function stripHTML(oldString) {
   
 }
 
-function reset()
-{
+function reset() {
     selectWord();
 
     document.getElementById('usedLetters').innerHTML = "&nbsp;";
@@ -234,25 +227,22 @@ if ($html->type != 'hangmanp') {
 
 }
 
-function showallletters()
-{
+function showallletters() {
     var letters = "";
     var next =  all_letters.length / 4;
     var letter = "";
     
-    for( i=0; i < all_letters.length; i++)
-    {
-        if( i > next)
-        {
+    for( i=0; i < all_letters.length; i++) {
+        if( i > next) {
             next += all_letters.length / 4;
             letters += " ";
         }
         
         letter = all_letters[ i];
-        if( used_letters_all.length > 0)
-        {
-            if( used_letters_all.indexOf( letter) > -1)
+        if( used_letters_all.length > 0) {
+            if( used_letters_all.indexOf( letter) > -1) {
                 continue;
+            }
         }
 
         letters = letters + "<a href=\"javascript:selectLetter('" + letter + "');\">" + letter + "</a>"
@@ -260,14 +250,13 @@ function showallletters()
     document.getElementById( "letters").innerHTML = letters;
 }
 
-function selectWord()
-{
+function selectWord() {
     can_play = true;
     random_number = Math.round(Math.random() * (words.length - 1));
     to_guess =  Base64.decode( words[random_number]);
     to_question = Base64.decode( questions[random_number]);
-	
-    // display masked word
+
+    // Display masked word.
     masked_word = createMask(to_guess);
     document.getElementById('displayWord').innerHTML=masked_word;
     
@@ -288,8 +277,7 @@ function createMask(m)
     word_lenght = m.length;
 
 
-    for (i = 0; i < word_lenght; i ++)
-    {
+    for (i = 0; i < word_lenght; i++) {
         mask += "#";
     }
 
@@ -305,76 +293,69 @@ function createMask(m)
  
 var Base64 = {
  
-	// private property
-	_keyStr : "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=",
- 
-	// public method for decoding
-	decode : function (input) {
-		var output = "";
-		var chr1, chr2, chr3;
-		var enc1, enc2, enc3, enc4;
-		var i = 0;
- 
-		input = input.replace(/[^A-Za-z0-9\+\/\=]/g, "");
- 
-		while (i < input.length) {
- 
-			enc1 = this._keyStr.indexOf(input.charAt(i++));
-			enc2 = this._keyStr.indexOf(input.charAt(i++));
-			enc3 = this._keyStr.indexOf(input.charAt(i++));
-			enc4 = this._keyStr.indexOf(input.charAt(i++));
- 
-			chr1 = (enc1 << 2) | (enc2 >> 4);
-			chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);
-			chr3 = ((enc3 & 3) << 6) | enc4;
- 
-			output = output + String.fromCharCode(chr1);
- 
-			if (enc3 != 64) {
-				output = output + String.fromCharCode(chr2);
-			}
-			if (enc4 != 64) {
-				output = output + String.fromCharCode(chr3);
-			}
- 		}
- 
-		output = Base64._utf8_decode(output);
- 
-		return output;
- 
-	}, 
- 
-	// private method for UTF-8 decoding
-	_utf8_decode : function (utftext) {
-		var string = "";
-		var i = 0;
-		var c = c1 = c2 = 0;
- 
-		while ( i < utftext.length ) {
- 
-			c = utftext.charCodeAt(i);
- 
-			if (c < 128) {
-				string += String.fromCharCode(c);
-				i++;
-			}
-			else if((c > 191) && (c < 224)) {
-				c2 = utftext.charCodeAt(i+1);
-				string += String.fromCharCode(((c & 31) << 6) | (c2 & 63));
-				i += 2;
-			}
-			else {
-				c2 = utftext.charCodeAt(i+1);
-				c3 = utftext.charCodeAt(i+2);
-				string += String.fromCharCode(((c & 15) << 12) | ((c2 & 63) << 6) | (c3 & 63));
-				i += 3;
-			}
- 
-		}
- 
-		return string;
-	}
+    // Private property.
+    _keyStr : "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=",
+
+    // Public method for decoding.
+    decode : function (input) {
+        var output = "";
+        var chr1, chr2, chr3;
+        var enc1, enc2, enc3, enc4;
+        var i = 0;
+
+        input = input.replace(/[^A-Za-z0-9\+\/\=]/g, "");
+
+        while (i < input.length) { 
+            enc1 = this._keyStr.indexOf(input.charAt(i++));
+            enc2 = this._keyStr.indexOf(input.charAt(i++));
+            enc3 = this._keyStr.indexOf(input.charAt(i++));
+            enc4 = this._keyStr.indexOf(input.charAt(i++));
+
+            chr1 = (enc1 << 2) | (enc2 >> 4);
+            chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);
+            chr3 = ((enc3 & 3) << 6) | enc4;
+
+            output = output + String.fromCharCode(chr1);
+
+            if (enc3 != 64) {
+                output = output + String.fromCharCode(chr2);
+            }
+            if (enc4 != 64) {
+                output = output + String.fromCharCode(chr3);
+            }
+        }
+
+        output = Base64._utf8_decode(output);
+
+        return output; 
+    }, 
  
+    // Private method for UTF-8 decoding.
+    _utf8_decode : function (utftext) {
+        var string = "";
+        var i = 0;
+        var c = c1 = c2 = 0;
+
+        while ( i < utftext.length ) {
+            c = utftext.charCodeAt(i);
+
+            if (c < 128) {
+                string += String.fromCharCode(c);
+                i++;
+            } else if((c > 191) && (c < 224)) {
+                c2 = utftext.charCodeAt(i+1);
+                string += String.fromCharCode(((c & 31) << 6) | (c2 & 63));
+                i += 2;
+            } else {
+                c2 = utftext.charCodeAt(i+1);
+                c3 = utftext.charCodeAt(i+2);
+                string += String.fromCharCode(((c & 15) << 12) | ((c2 & 63) << 6) | (c3 & 63));
+                i += 3;
+            } 
+        }
+
+        return string;
+    } 
 }
 </script>
 </head>
@@ -389,4 +370,3 @@ var Base64 = {
 <div id="letters"></div>
 
 </body>
-
diff --git a/exporthtml_millionaire.php b/exporthtml_millionaire.php
index 458b0f8..cf91793 100644
--- a/exporthtml_millionaire.php
+++ b/exporthtml_millionaire.php
@@ -16,7 +16,7 @@
 
 /**
  * This page export the game millionaire to html
- * 
+ *
  * @author  bdaloukas
  * @package game
  **/
@@ -120,28 +120,28 @@ function game_millionaire_html_print( $game,  $questions, $maxquestions) {
     var countQuestions = 0;
     var maxQuestions = <?php echo $maxquestions;?>;
     
-	function Highlite( ans) {
-		document.getElementById( "btAnswer" + ans).style.backgroundColor = '<?php echo $color2;?>';
-	}
-
-	function Restore( ans) {
-		document.getElementById( "btAnswer" + ans).style.backgroundColor = '<?php echo $colorback;?>';
-	}
-
-	function OnSelectAnswer( ans) {
-	    if ( posCorrect == ans) {
-	        if( level+1 > 15) {
-	            alert( "<?php echo get_string( 'win', 'game');?>");
-	            Reset();
-	        } else {
-	            UpdateLevel( level+1);
-	            SelectNextQuestion();
-	        }
-	    } else {
-	        OnGameOver( ans);
-	    }
-	}
-	
+    function Highlite( ans) {
+        document.getElementById( "btAnswer" + ans).style.backgroundColor = '<?php echo $color2;?>';
+    }
+
+    function Restore( ans) {
+        document.getElementById( "btAnswer" + ans).style.backgroundColor = '<?php echo $colorback;?>';
+    }
+
+    function OnSelectAnswer( ans) {
+        if ( posCorrect == ans) {
+            if( level+1 > 15) {
+                alert( "<?php echo get_string( 'win', 'game');?>");
+                Reset();
+            } else {
+                UpdateLevel( level+1);
+                SelectNextQuestion();
+            }
+        } else {
+            OnGameOver( ans);
+        }
+    }
+
     function OnGameOver( ans) {
         document.getElementById( "info").innerHTML = "<?php echo get_string( 'millionaire_info_wrong_answer', 'game');?> " +
             document.getElementById( "lblAnswer" + posCorrect).innerHTML;
@@ -150,38 +150,38 @@ function game_millionaire_html_print( $game,  $questions, $maxquestions) {
         document.getElementById( "lblAnswer" + posCorrect).style.backgroundColor = '<?php echo $color2;?>';
         
         alert( "<?php echo strip_tags( get_string( 'hangman_loose', 'game')); ?>");
-       
+      
         Restore( posCorrect); 
         document.getElementById( "lblAnswer" + posCorrect).style.backgroundColor = '<?php echo $colorback;?>';
-        
+
         Reset();
     }
-    
-	function UpdateLevel( newlevel) {
-	    if ( level > 0) {
-	        document.getElementById( "levela" + level).bgColor = "<?php echo $colorback;?>";
-    	    document.getElementById( "levelb" + level).bgColor = "<?php echo $colorback;?>";
-	        document.getElementById( "levelc" + level).bgColor = "<?php echo $colorback;?>";
-	        document.getElementById( "levela" + level).style.color = "<?php echo $color1;?>";	    
-	        document.getElementById( "levelb" + level).style.color = "<?php echo $color1;?>";
-	        document.getElementById( "levelc" + level).style.color = "<?php echo $color1;?>";
-	    }
-	    
-	    level = newlevel;
-
-	    document.getElementById( "levela" + level).bgColor = "<?php echo $color2;?>";
-	    document.getElementById( "levelb" + level).bgColor = "<?php echo $color2;?>";
-	    document.getElementById( "levelc" + level).bgColor = "<?php echo $color2;?>";
-	    document.getElementById( "levela" + level).style.color = "<?php echo $colorback;?>";	    
-	    document.getElementById( "levelb" + level).style.color = "<?php echo $colorback;?>";
-	    document.getElementById( "levelc" + level).style.color = "<?php echo $colorback;?>";
-    }
-	
-	function OnHelp5050( ans) {
-	    if (flag5050) {
-	        return;
+
+    function UpdateLevel( newlevel) {
+        if ( level > 0) {
+            document.getElementById( "levela" + level).bgColor = "<?php echo $colorback;?>";
+            document.getElementById( "levelb" + level).bgColor = "<?php echo $colorback;?>";
+            document.getElementById( "levelc" + level).bgColor = "<?php echo $colorback;?>";
+            document.getElementById( "levela" + level).style.color = "<?php echo $color1;?>";
+            document.getElementById( "levelb" + level).style.color = "<?php echo $color1;?>";
+            document.getElementById( "levelc" + level).style.color = "<?php echo $color1;?>";
         }
-   
+
+        level = newlevel;
+
+        document.getElementById( "levela" + level).bgColor = "<?php echo $color2;?>";
+        document.getElementById( "levelb" + level).bgColor = "<?php echo $color2;?>";
+        document.getElementById( "levelc" + level).bgColor = "<?php echo $color2;?>";
+        document.getElementById( "levela" + level).style.color = "<?php echo $colorback;?>";
+        document.getElementById( "levelb" + level).style.color = "<?php echo $colorback;?>";
+        document.getElementById( "levelc" + level).style.color = "<?php echo $colorback;?>";
+   }
+
+    function OnHelp5050( ans) {
+        if (flag5050) {
+            return;
+        }
+
         document.getElementById( "Help5050").src = "5050x.png";
         flag5050 = 1;
 
@@ -190,54 +190,54 @@ function game_millionaire_html_print( $game,  $questions, $maxquestions) {
         for (i=1; i <= countQuestions; i++) {   
             if( (i != pos) && (i != posCorrect)) {         
                 document.getElementById( "lblAnswer" + i).style.visibility = 'hidden';
-        	    document.getElementById( "btAnswer" + i).style.visibility = 'hidden';
-        	}
+                document.getElementById( "btAnswer" + i).style.visibility = 'hidden';
+            }
         }
-	}
+    }
 
-	function OnHelpTelephone( ans) {
-	    if( flagTelephone) {
-	        return;
+    function OnHelpTelephone( ans) {
+        if( flagTelephone) {
+            return;
         }
-	    flagTelephone = 1;
+        flagTelephone = 1;
         document.getElementById( "HelpTelephone").src = "telephonex.png";
-	    
-		if (countQuestions < 2) {
-			wrong = posCorrect;
-		} else {
-			for(;;) {
-				wrong = 1 + Math.floor(Math.random() * countQuestions);
-				if ( wrong != posCorrect) {
-					break;
-                }
-			}
-		}
-
-		// With 80% gives the correct answer.
-		if (Math.random() <= 0.8) {
-			pos = posCorrect;
-		} else {
-			pos = wrong;
+
+        if (countQuestions < 2) {
+            wrong = posCorrect;
+        } else {
+            for(;;) {
+                wrong = 1 + Math.floor(Math.random() * countQuestions);
+                if ( wrong != posCorrect) {
+                    break;
+               }
+            }
+        }
+
+        // With 80% gives the correct answer.
+        if (Math.random() <= 0.8) {
+            pos = posCorrect;
+        } else {
+            pos = wrong;
         }
-			
+
         info = "<?php echo get_string( 'millionaire_info_telephone', 'game').'<br><b>';?> ";
         info += document.getElementById( "lblAnswer" + pos).innerHTML;
         document.getElementById( "info").innerHTML = info;
-	}
+    }
 
-	function OnHelpPeople( ans) {
+    function OnHelpPeople( ans) {
         if( flagPeople) {
-	        return;
+            return;
         }
-	    flagPeople = 1;
+        flagPeople = 1;
         document.getElementById( "HelpPeople").src = "peoplex.png";
-        
+
         sum = 0;
         var aPercent = new Array();
         for( i = 0; i < countQuestions-1; i++) {
-			percent = Math.floor(Math.random()*(100-sum));
-			aPercent[ i] = percent;
-			sum += percent;
+            percent = Math.floor(Math.random()*(100-sum));
+            aPercent[ i] = percent;
+            sum += percent;
         }
         aPercent[ countQuestions - 1] = 100 - sum;
         if( Math.random() <= 0.8) {
@@ -256,24 +256,24 @@ function game_millionaire_html_print( $game,  $questions, $maxquestions) {
         info = "<?php echo '<br>'.get_string( 'millionaire_info_people', 'game').':<br>';?>";
         for( i=0; i < countQuestions; i++) {
             info += "<br>" + letters.charAt( i) + " : " + aPercent[ i] + " %";
-		}
-	    
-	    document.getElementById( "info").innerHTML = info;
-	}
-
-	function OnQuit( ans) {
-	    Reset();
-	}
-	
-	function Reset() {
-	    for(i=1; i <= 15; i++) {
-	        document.getElementById( "levela" + i).bgColor = "<?php echo $colorback;?>";
-    	    document.getElementById( "levelb" + i).bgColor = "<?php echo $colorback;?>";	    
-	        document.getElementById( "levelc" + i).bgColor = "<?php echo $colorback;?>";
-	        document.getElementById( "levela" + i).style.color = "<?php echo $color1;?>";
-	        document.getElementById( "levelb" + i).style.color = "<?php echo $color1;?>";
-	        document.getElementById( "levelc" + i).style.color = "<?php echo $color1;?>";
-	    }
+        }
+
+        document.getElementById( "info").innerHTML = info;
+    }
+
+    function OnQuit( ans) {
+        Reset();
+    }
+
+    function Reset() {
+        for(i=1; i <= 15; i++) {
+            document.getElementById( "levela" + i).bgColor = "<?php echo $colorback;?>";
+            document.getElementById( "levelb" + i).bgColor = "<?php echo $colorback;?>";
+            document.getElementById( "levelc" + i).bgColor = "<?php echo $colorback;?>";
+            document.getElementById( "levela" + i).style.color = "<?php echo $color1;?>";
+            document.getElementById( "levelb" + i).style.color = "<?php echo $color1;?>";
+            document.getElementById( "levelc" + i).style.color = "<?php echo $color1;?>";
+        }
 
         flag5050 = 0;
         flagTelephone = 0;
@@ -283,10 +283,10 @@ function game_millionaire_html_print( $game,  $questions, $maxquestions) {
         document.getElementById( "HelpPeople").src = "people.png";
         document.getElementById( "HelpTelephone").src = "telephone.png";
 
-	    document.getElementById( "info").innerHTML = "";
-	    UpdateLevel( 1);
-	    SelectNextQuestion();
-	}
+        document.getElementById( "info").innerHTML = "";
+        UpdateLevel( 1);
+        SelectNextQuestion();
+    }
 
     function RandomizeAnswers( elements) {
         posCorrect = 1;
@@ -305,30 +305,27 @@ function game_millionaire_html_print( $game,  $questions, $maxquestions) {
         }
     }
     
-	function SelectNextQuestion()
-	{   
-	    current_question = Math.floor(Math.random()*questions.length);
-	    question = Base64.decode( questions[ current_question]);
-	    
-	    var elements = new Array();
+    function SelectNextQuestion() {   
+        current_question = Math.floor(Math.random()*questions.length);
+        question = Base64.decode( questions[ current_question]);
+
+        var elements = new Array();
         elements = question.split('#');
         
         RandomizeAnswers( elements);
 
-	    document.getElementById( "question").innerHTML = elements[ 0];
-	    for( i=1; i < elements.length; i++)
-	    {
-    	    document.getElementById( "lblAnswer" + i).innerHTML = elements[ i];
-    	    document.getElementById( "lblAnswer" + i).style.visibility = 'visible';
-    	    document.getElementById( "btAnswer" + i).style.visibility = 'visible';
-	    }
-	    for( i=elements.length; i<= maxQuestions; i++)
-	    {
-    	    document.getElementById( "lblAnswer" + i).style.visibility = 'hidden';
-    	    document.getElementById( "btAnswer" + i).style.visibility = 'hidden';
-    	}
-    	
-    	document.getElementById( "info").innerHTML = "";
+        document.getElementById( "question").innerHTML = elements[ 0];
+        for( i=1; i < elements.length; i++) {
+            document.getElementById( "lblAnswer" + i).innerHTML = elements[ i];
+            document.getElementById( "lblAnswer" + i).style.visibility = 'visible';
+            document.getElementById( "btAnswer" + i).style.visibility = 'visible';
+        }
+        for( i=elements.length; i<= maxQuestions; i++) {
+            document.getElementById( "lblAnswer" + i).style.visibility = 'hidden';
+            document.getElementById( "btAnswer" + i).style.visibility = 'hidden';
+        }
+
+        document.getElementById( "info").innerHTML = "";
     }
     
 /**
@@ -340,79 +337,71 @@ function game_millionaire_html_print( $game,  $questions, $maxquestions) {
  
 var Base64 = {
  
-	// private property
-	_keyStr : "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=",
- 
-	// public method for decoding
-	decode : function (input) {
-		var output = "";
-		var chr1, chr2, chr3;
-		var enc1, enc2, enc3, enc4;
-		var i = 0;
- 
-		input = input.replace(/[^A-Za-z0-9\+\/\=]/g, "");
- 
-		while (i < input.length) {
- 
-			enc1 = this._keyStr.indexOf(input.charAt(i++));
-			enc2 = this._keyStr.indexOf(input.charAt(i++));
-			enc3 = this._keyStr.indexOf(input.charAt(i++));
-			enc4 = this._keyStr.indexOf(input.charAt(i++));
- 
-			chr1 = (enc1 << 2) | (enc2 >> 4);
-			chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);
-			chr3 = ((enc3 & 3) << 6) | enc4;
- 
-			output = output + String.fromCharCode(chr1);
- 
-			if (enc3 != 64) {
-				output = output + String.fromCharCode(chr2);
-			}
-			if (enc4 != 64) {
-				output = output + String.fromCharCode(chr3);
-			}
- 		}
- 
-		output = Base64._utf8_decode(output);
- 
-		return output;
- 
-	}, 
- 
-	// private method for UTF-8 decoding
-	_utf8_decode : function (utftext) {
-		var string = "";
-		var i = 0;
-		var c = c1 = c2 = 0;
-		while ( i < utftext.length ) {
-			c = utftext.charCodeAt(i);
- 
-			if (c < 128) {
-				string += String.fromCharCode(c);
-				i++;
-			}
-			else if((c > 191) && (c < 224)) {
-				c2 = utftext.charCodeAt(i+1);
-				string += String.fromCharCode(((c & 31) << 6) | (c2 & 63));
-				i += 2;
-			}
-			else {
-				c2 = utftext.charCodeAt(i+1);
-				c3 = utftext.charCodeAt(i+2);
-				string += String.fromCharCode(((c & 15) << 12) | ((c2 & 63) << 6) | (c3 & 63));
-				i += 3;
-			}
- 
-		}
- 
-		return string;
-	}
- 
-}
-		
-</script>
+    // Private property.
+    _keyStr : "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=",
+
+    // Public method for decoding.
+    decode : function (input) {
+        var output = "";
+        var chr1, chr2, chr3;
+        var enc1, enc2, enc3, enc4;
+        var i = 0;
+
+        input = input.replace(/[^A-Za-z0-9\+\/\=]/g, "");
+
+        while (i < input.length) {
 
+            enc1 = this._keyStr.indexOf(input.charAt(i++));
+            enc2 = this._keyStr.indexOf(input.charAt(i++));
+            enc3 = this._keyStr.indexOf(input.charAt(i++));
+            enc4 = this._keyStr.indexOf(input.charAt(i++));
 
+            chr1 = (enc1 << 2) | (enc2 >> 4);
+            chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);
+            chr3 = ((enc3 & 3) << 6) | enc4;
+
+            output = output + String.fromCharCode(chr1);
+
+            if (enc3 != 64) {
+                output = output + String.fromCharCode(chr2);
+            }
+            if (enc4 != 64) {
+                output = output + String.fromCharCode(chr3);
+            }
+        }
+
+        output = Base64._utf8_decode(output);
+
+        return output;
+    }, 
+
+    // private method for UTF-8 decoding
+    _utf8_decode : function (utftext) {
+        var string = "";
+        var i = 0;
+        var c = c1 = c2 = 0;
+        while ( i < utftext.length ) {
+            c = utftext.charCodeAt(i);
+
+            if (c < 128) {
+                string += String.fromCharCode(c);
+                i++;
+            } else if((c > 191) && (c < 224)) {
+                c2 = utftext.charCodeAt(i+1);
+                string += String.fromCharCode(((c & 31) << 6) | (c2 & 63));
+                i += 2;
+            } else {
+                c2 = utftext.charCodeAt(i+1);
+                c3 = utftext.charCodeAt(i+2);
+                string += String.fromCharCode(((c & 15) << 12) | ((c2 & 63) << 6) | (c3 & 63));
+                i += 3;
+            }
+        }
+
+        return string;
+    }
+}
+</script>
 
 <table cellpadding=0 cellspacing=0 border=0>
 <tr style='background:#408080'>
@@ -499,23 +488,23 @@ var Base64 = {
 </tr>
 
 <?php
-    $letters = get_string( 'lettersall', 'game');
-    for ($i = 1; $i <= $maxquestions; $i++) {
-        $s = game_substr( $letters, $i - 1, 1);
-        echo "<tr>\n";
-        echo "<td style='background:$colorback;color:$color1'>";
-        echo "<input style=\"background:$colorback;color:$color1;\"
-            type=\"submit\" name=\"btAnswer$i\" value=\"$s\" id=\"btAnswer$i\"";
-        echo " onmouseover=\"Highlite( $i);\" onmouseout=\"Restore( $i);\"  onmousedown=\"OnSelectAnswer( $i);\">";
-        echo "</td>\n";
-        echo "<td style=\"background:$colorback;color:$color1;\" width=100%> &nbsp; <span id=lblAnswer$i
-            style=\"background:$colorback;color:$color1\"
-            onmouseover=\"Highlite($i);\r \n\" onmouseout=\"Restore( $i);\" onmousedown=\"OnSelectAnswer( $i);\"></span></td>\n";
-        if ( $i == 1) {
-            echo "<td style='background:#408080' rowspan=".$maxquestions." colspan=3><div id=\"info\"></div></td>\n";
-        }
-        echo "</tr>\n";
+$letters = get_string( 'lettersall', 'game');
+for ($i = 1; $i <= $maxquestions; $i++) {
+    $s = game_substr( $letters, $i - 1, 1);
+    echo "<tr>\n";
+    echo "<td style='background:$colorback;color:$color1'>";
+    echo "<input style=\"background:$colorback;color:$color1;\"
+        type=\"submit\" name=\"btAnswer$i\" value=\"$s\" id=\"btAnswer$i\"";
+    echo " onmouseover=\"Highlite( $i);\" onmouseout=\"Restore( $i);\"  onmousedown=\"OnSelectAnswer( $i);\">";
+    echo "</td>\n";
+    echo "<td style=\"background:$colorback;color:$color1;\" width=100%> &nbsp; <span id=lblAnswer$i
+        style=\"background:$colorback;color:$color1\"
+        onmouseover=\"Highlite($i);\r \n\" onmouseout=\"Restore( $i);\" onmousedown=\"OnSelectAnswer( $i);\"></span></td>\n";
+    if ( $i == 1) {
+        echo "<td style='background:#408080' rowspan=".$maxquestions." colspan=3><div id=\"info\"></div></td>\n";
     }
+    echo "</tr>\n";
+}
 ?>
 
 <tr><td colspan=10 style='background:#408080'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td></tr>
diff --git a/exporthtml_snakes.php b/exporthtml_snakes.php
index 3739e90..a0638f0 100644
--- a/exporthtml_snakes.php
+++ b/exporthtml_snakes.php
@@ -14,9 +14,9 @@
 // You should have received a copy of the GNU General Public License
 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
 
-/**
+/*
  * This page export the game snakes to html
- * 
+ *
  * @author  bdaloukas
  * @package game
  **/
@@ -39,26 +39,27 @@ defined('MOODLE_INTERNAL') || die();
 <style type="text/css">
 #pawn
 {
-position:absolute;
+    position:absolute;
 }
+
 img
 {
-	border:hidden
+    border:hidden
+
 }
 body
 { 
-background: #999 url('images/backdropJungle.png') no-repeat fixed left top;
+    background: #999 url('images/backdropJungle.png') no-repeat fixed left top;
+}
+
+.score {
+    color: #FC3; 
+    font-size: 40px;
 }
-	.score
-	{color: #FC3; 
-	font-size: 40px;
-	}
 </style>
 
 </head>
 
-
-
 <body>
 
 <script language="JavaScript">
@@ -152,55 +153,52 @@ display_quest();
 
 function ShowMainForm()
 {
-	var pawn_x =0;
-	var pawn_y=0;
-	var direction=0;
-	var cols = board_cols[current_board];
-	var rows = board_rows[current_board];
-	var col_width = (board_width[current_board]-board_headerx[current_board]-board_footerx[current_board])/cols;
-	var col_height = (board_height[current_board]-board_headery[current_board]-board_footery[current_board])/rows;
-	
-	document.write('<img id="boardimage" src="images/meter.png">');
-	document.getElementById("boardimage").src = "images/" + board_images[ current_board];
-	document.write('<div id="dicecont">&nbsp;</div>');
-		
-	if( current_position  >= 0)
-	{
-		direction=Math.floor((current_position /cols))%2;
-		if (direction==1)
-			axis_x=(cols-(current_position %cols)-1);
-		else
+    var pawn_x =0;
+    var pawn_y=0;
+    var direction=0;
+    var cols = board_cols[current_board];
+    var rows = board_rows[current_board];
+    var col_width = (board_width[current_board]-board_headerx[current_board]-board_footerx[current_board])/cols;
+    var col_height = (board_height[current_board]-board_headery[current_board]-board_footery[current_board])/rows;
+
+    document.write('<img id="boardimage" src="images/meter.png">');
+    document.getElementById("boardimage").src = "images/" + board_images[ current_board];
+    document.write('<div id="dicecont">&nbsp;</div>');
+
+    if( current_position  >= 0) {
+        direction=Math.floor((current_position /cols))%2;
+        if (direction == 1) {
+            axis_x=(cols-(current_position %cols)-1);
+		} else {
 			axis_x=current_position %cols;
+        }
+        axis_y=Math.floor((current_position /rows));
+        pawn_x=board_headerx[current_board]+(axis_x*col_width)+(col_width-pawn_width[current_board])/2;
+        pawn_y=board_footery[current_board]+pawn_height[current_board]+(axis_y*col_height)+(col_height-pawn_height[current_board])/2;
 
-		axis_y=Math.floor((current_position /rows));
-		pawn_x=board_headerx[current_board]+(axis_x*col_width)+(col_width-pawn_width[current_board])/2;
-		pawn_y=board_footery[current_board]+pawn_height[current_board]+(axis_y*col_height)+(col_height-pawn_height[current_board])/2;
-			
-		document.write('<div id="pawn1"><img id="pawn" alt="" src="images/player1.png"></div>');
-	    move_pawn();
-	}
+        document.write('<div id="pawn1"><img id="pawn" alt="" src="images/player1.png"></div>');
+        move_pawn();
+    }
 }
 
-function selectBoard()
-{
-	current_board = document.getElementById("boardtype").value;
-	document.getElementById("boardimage").src = "images/" + board_images[ current_board];	
+function selectBoard() {
+    current_board = document.getElementById("boardtype").value;
+    document.getElementById("boardimage").src = "images/" + board_images[ current_board];	
 }
 
-function select_quest()
-{
+function select_quest() {
     var quest_total = countofquestionsM + countofquestionsS;
-	var quest_candidates= new Array();
-	var i, q;
+    var quest_candidates= new Array();
+    var i, q;
 
-	for (i=0;i<3;i++) {
-		quest_candidates[i]=Math.floor((Math.random() * quest_total));
-	}
-	current_quest = quest_candidates[0];
-	for (i=1;i<3;i++) {
-		if (quest_times_asked[quest_candidates[i]]>quest_times_asked[current_quest])
-			current_quest=quest_candidates[i];
-	}
+    for (i=0;i<3;i++) {
+        quest_candidates[i]=Math.floor((Math.random() * quest_total));
+    }
+    current_quest = quest_candidates[0];
+    for (i=1;i<3;i++) {
+        if (quest_times_asked[quest_candidates[i]]>quest_times_asked[current_quest])
+            current_quest=quest_candidates[i];
+    }
 
     q=Base64decode( questions[ current_quest]);
     quest_resp = decode_multiple_choice( q);
@@ -208,206 +206,188 @@ function select_quest()
     quest_feedb = Base64decode( feedbacks[ current_quest]);
 }
 
-function IsMultipleChoiceQuestion()
-{
+function IsMultipleChoiceQuestion() {
     return (current_quest < countofquestionsM);
 }
 
-function check_answer()
-{
-	all_ans=all_ans+1;
-	if( IsMultipleChoiceQuestion())
-		check_answer_M();
-	else
-		check_answer_S();
-        
-	move_pawn();
+function check_answer() {
+    all_ans=all_ans+1;
+    if( IsMultipleChoiceQuestion()) {
+        check_answer_M();
+    } else {
+        check_answer_S();
+    }
+
+    move_pawn();
 }
 
-function check_answer_M()
-{	
-	document.getElementById("check_btn").style.display = "none";
+function check_answer_M() {
+    document.getElementById("check_btn").style.display = "none";
 
-	var useranswer;
-	var n=document.snakesform.radio_answer.length;
-	for(useranswer=0;useranswer < n;useranswer++)
-	{
-		if( document.snakesform.radio_answer[ useranswer].checked)
-			break;
-	}
-	
-	if( useranswer >= n)
-	{
-		alert( str_no_selection);
-		document.getElementById("feedb").innerHTML= "";
-		document.getElementById("check_btn").style.display = "block";
-		return;
-	}
-	
-	var feedbacks = decode_multiple_choice(quest_feedb);	
-	
-	var j;
-	for (j=0;j<n;j++) {
-	document.snakesform.radio_answer[ j].disabled = "true"; 
-	}
+    var useranswer;
+    var n=document.snakesform.radio_answer.length;
+    for(useranswer=0;useranswer < n;useranswer++) {
+        if( document.snakesform.radio_answer[ useranswer].checked)
+            break;
+    }
 
-	document.getElementById("feedb").innerHTML= feedbacks[ mchoice_positions[useranswer]];
-	document.getElementById("feedb").style.display = "block";
-	
-	if ( mchoice_positions[ useranswer] == 1)
-	{
-		current_position += current_dice;
-		correct_ans =correct_ans+1; //calculate new score----
-		score = Math.round((correct_ans/all_ans)*100);
-		document.getElementById("show_score").innerHTML='<strong>'+str_score+': </strong><strong class="score">' +score+ '</strong>';
-		check_game_over();
-		check_exists_ladder();
-	}
-	else 
-	{
-		score = Math.round((correct_ans/all_ans)*100); 
-		document.getElementById("show_score").innerHTML='<strong>'+str_score+': </strong><strong class="score">' +score+ '</strong>';
-		check_exists_snake();
-	}
-	
-	document.getElementById("OK_btn").style.display = "block";	
+    if( useranswer >= n) {
+        alert( str_no_selection);
+        document.getElementById("feedb").innerHTML= "";
+        document.getElementById("check_btn").style.display = "block";
+        return;
+    }
+
+    var feedbacks = decode_multiple_choice(quest_feedb);	
+
+    var j;
+    for (j=0;j<n;j++) {
+        document.snakesform.radio_answer[ j].disabled = "true"; 
+    }
+
+    document.getElementById("feedb").innerHTML= feedbacks[ mchoice_positions[useranswer]];
+    document.getElementById("feedb").style.display = "block";
+
+    if ( mchoice_positions[ useranswer] == 1) {
+        current_position += current_dice;
+        correct_ans =correct_ans+1; //calculate new score----
+        score = Math.round((correct_ans/all_ans)*100);
+        document.getElementById("show_score").innerHTML='<strong>'+str_score+': </strong><strong class="score">' +score+ '</strong>';
+        check_game_over();
+        check_exists_ladder();
+    } else {
+        score = Math.round((correct_ans/all_ans)*100); 
+        document.getElementById("show_score").innerHTML='<strong>'+str_score+': </strong><strong class="score">' +score+ '</strong>';
+        check_exists_snake();
+    }
+
+    document.getElementById("OK_btn").style.display = "block";	
 }
 
-function check_answer_S()
-{
-	document.getElementById("answer").disabled = "true";
-	document.getElementById("check_btn").style.display = "none";
-		
-	if (document.getElementById("answer").value.toUpperCase() == quest_resp[ 1].toUpperCase()) 
-	{
-		document.getElementById("feedb").style.display = "block";
-		current_position += current_dice;
-		correct_ans =correct_ans+1; //calculate new score
-		score = Math.round((correct_ans/all_ans)*100); 
-		document.getElementById("show_score").innerHTML='<strong>'+str_score+': </strong><strong class="score">' +score+ '</strong>';
-		check_game_over();
-		check_exists_ladder();			
-	}
-	else 
-	{
-		document.getElementById("feedb_wrong").style.display = "block";
-		score = Math.round((correct_ans/all_ans)*100); 
-		document.getElementById("show_score").innerHTML='<strong>'+str_score+': </strong><strong class="score">' +score+ '</strong>';
-		check_exists_snake();
-	}
+function check_answer_S() {
+    document.getElementById("answer").disabled = "true";
+    document.getElementById("check_btn").style.display = "none";
 	
-	document.getElementById("OK_btn").style.display = "block";	
+    if (document.getElementById("answer").value.toUpperCase() == quest_resp[ 1].toUpperCase())  {
+        document.getElementById("feedb").style.display = "block";
+        current_position += current_dice;
+        correct_ans =correct_ans+1; //calculate new score
+        score = Math.round((correct_ans/all_ans)*100); 
+        document.getElementById("show_score").innerHTML='<strong>'+str_score+': </strong><strong class="score">' +score+ '</strong>';
+        check_game_over();
+        check_exists_ladder();			
+	} else {
+        document.getElementById("feedb_wrong").style.display = "block";
+        score = Math.round((correct_ans/all_ans)*100); 
+        document.getElementById("show_score").innerHTML='<strong>'+str_score+': </strong><strong class="score">' +score+ '</strong>';
+        check_exists_snake();
+    }
+
+    document.getElementById("OK_btn").style.display = "block";	
 }
 
-function check_game_over()
-{
-	var out=(board_cols[current_board]*board_rows[current_board]);
-	if (current_position > out-1)
-    {
-		current_position=out-1;
-		showPopWin('modalContent.html', 350, 220, returnRefresh); // modal
-	}
+function check_game_over() {
+    var out=(board_cols[current_board]*board_rows[current_board]);
+    if (current_position > out-1) {
+        current_position=out-1;
+        showPopWin('modalContent.html', 350, 220, returnRefresh); // modal
+    }
 }
 
-function check_exists_ladder()
-{
-	var find = "L" + (current_position+1) + "-";
-	var pos = board_contents[ current_board].indexOf( find);
+function check_exists_ladder() {
+    var find = "L" + (current_position+1) + "-";
+    var pos = board_contents[ current_board].indexOf( find);
+
+    if( pos < 0) {
+        return;
+    }
 	
-	if( pos < 0)
-		return;
-		
-	var s = board_contents[ current_board].substr( pos+find.length)
-	pos = s.indexOf( ',');
-	if( pos >= 0)
-		s = s.substr( 0, pos);
-		
-	current_position = s-1;
+    var s = board_contents[ current_board].substr( pos+find.length)
+    pos = s.indexOf( ',');
+    if (pos >= 0) {
+        s = s.substr( 0, pos);
+    }
+
+    current_position = s-1;
 }
 
-function check_exists_snake()
-{
-	var find = "-" + (current_position+1) + ",";
-	var s= ',' +board_contents[ current_board] + ',';
-	
-	for(;;)
-	{
-		var pos = s.indexOf( find);
-	
-		if( pos < 0)
-			return;
-			
-		var pos_start = s.lastIndexOf( ',', pos-1);
-		
-		var kind = s.substr( pos_start+1, 1);
-		if( kind != "S")
-		{
-			s = s.substr( pos+1);
-			continue;
-		}
-		s = s.substr( pos_start+2);
-		pos = s.indexOf( '-');
-		current_position = s.substr( 0, pos)-1;
-		break;
-	}
+function check_exists_snake() {
+    var find = "-" + (current_position+1) + ",";
+    var s= ',' +board_contents[ current_board] + ',';
+
+    for(;;) {
+        var pos = s.indexOf( find);
+
+        if (pos < 0) {
+            return;
+        }
+
+        var pos_start = s.lastIndexOf( ',', pos-1);
+
+        var kind = s.substr( pos_start+1, 1);
+        if ( kind != "S") {
+            s = s.substr( pos+1);
+            continue;
+        }
+        s = s.substr( pos_start+2);
+        pos = s.indexOf( '-');
+        current_position = s.substr( 0, pos)-1;
+        break;
+    }
 }
 
-function decode_multiple_choice(s)
-{
-	var ret = new Array();
-	
-	var i=0;
-	for(;;)
-	{
-		var pos=s.indexOf( '#');
-		if( pos < 0)
-		{
-			ret[ i++] = s;
-			return ret;
-		}
-		ret[ i++] = s.substr( 0, pos);
-		s = s.substr( pos+1);
-	}
+function decode_multiple_choice(s) {
+    var ret = new Array();
+
+    var i=0;
+    for(;;) {
+        var pos=s.indexOf( '#');
+        if( pos < 0) {
+            ret[ i++] = s;
+            return ret;
+        }
+        ret[ i++] = s.substr( 0, pos);
+        s = s.substr( pos+1);
+    }
 }
 
-function display_quest() 
-{
-	current_dice = Math.floor((Math.random() * 6)) + 1;
-	select_quest();
+function display_quest()  {
+    current_dice = Math.floor((Math.random() * 6)) + 1;
+    select_quest();
 
-    if( IsMultipleChoiceQuestion())
-		display_quest_M();
-	else
-		display_quest_S();
+    if( IsMultipleChoiceQuestion()) {
+        display_quest_M();
+	} else {
+        display_quest_S();
+    }
 }
 
-function display_quest_M() 
-{	
-	s = '<table width="250px"><tr><td><div id="show_dice"> ';
+function display_quest_M() {
+    s = '<table width="250px"><tr><td><div id="show_dice"> ';
     s = s + '<img src = "images/dice' + current_dice + '.png"> </div> </td>';
     s = s + '<td align=right><div id="show_score" style="color: #FFFFFF; font-weight:bold; font-size: 20px;">';
     s = s + '<strong>'+str_score+': </strong>';
     s = s + '<strong class="score">' +score+ '</strong></div></td></tr></table>';
-	s = s + '<div id="question_area">' + quest_text+'</div>';
-	s = s + '<form name="snakesform">';
-
-	mchoice_count = quest_resp.length-1;
-	mchoice_positions = new Array( mchoice_count);
-	for(i=0; i < mchoice_count ; i++)
-		mchoice_positions[ i] = i+1;
-	for(i=0; i < mchoice_count ; i++)
-	{		
-		var j = Math.floor((Math.random() * mchoice_count));
-		var temp = mchoice_positions[ i];
-		mchoice_positions[ i] = mchoice_positions[ j];
-		mchoice_positions[ j] = temp;
-	}		
-	
-	for(i=0; i < mchoice_count;i++) {
-		s = s + '<input type="radio" name="radio_answer" id="radio_answer" value="';
+    s = s + '<div id="question_area">' + quest_text+'</div>';
+    s = s + '<form name="snakesform">';
+
+    mchoice_count = quest_resp.length-1;
+    mchoice_positions = new Array( mchoice_count);
+    for(i=0; i < mchoice_count ; i++) {
+        mchoice_positions[ i] = i+1;
+    }
+    for(i=0; i < mchoice_count ; i++) {		
+        var j = Math.floor((Math.random() * mchoice_count));
+        var temp = mchoice_positions[ i];
+        mchoice_positions[ i] = mchoice_positions[ j];
+        mchoice_positions[ j] = temp;
+    }		
+
+    for(i=0; i < mchoice_count;i++) {
+        s = s + '<input type="radio" name="radio_answer" id="radio_answer" value="';
         s = s + i+'" />'+quest_resp[ mchoice_positions[ i]] + '<br />';
     }
-	
+
     s = s + '<br /><input type="button" id="check_btn" value="'+str_check;
     s = s + '" onclick="check_answer();">  <br/><div id="feedb_area"> <div id="feedb_wrong" style="display:none; color:yellow;"> ';
     s = s + quest_feedb+' </div> <br /><div id="feedb" style="display:none; color:yellow;"> ';
@@ -415,17 +395,16 @@ function display_quest_M()
     s = s + current_dice+' τετράγωνα μπροστά!</div><br /> <div id="OK_btn"';   
     s = s + 'style="display:none;"><input type="button" onclick="display_quest();" value="OK"/></div> </div></form>';
 
-	document.getElementById("dicecont").innerHTML = s;
-	
-	document.getElementById("question_area").style.display = "block";
-	document.getElementById("check_btn").style.display = "block";		
+    document.getElementById("dicecont").innerHTML = s;
+
+    document.getElementById("question_area").style.display = "block";
+    document.getElementById("check_btn").style.display = "block";		
 }
 
-function display_quest_S() 
-{
+function display_quest_S() {
     var s = "";
 
-	s = '<table width="250px"><tr><td><div id="show_dice"> <img src = "images/dice';
+    s = '<table width="250px"><tr><td><div id="show_dice"> <img src = "images/dice';
     s = s + current_dice + '.png"> </div> </td><td align=right>';
     s = s + '<div id="show_score" style="color: #FFFFFF; font-weight:bold; font-size: 20px;"><strong>';
     s = s + str_score+': </strong><strong class="score">' +score+ '</strong></div></td></tr></table><div id="question_area">';
@@ -440,24 +419,22 @@ function display_quest_S()
 	document.getElementById("check_btn").style.display = "block";
 }
 
-function move_pawn()
-{
-
-	var pawn_x =0;
-	var pawn_y=0;
-	var direction=0;
-	var cols = board_cols[current_board];
-	var rows = board_rows[current_board];
-	var col_width = (board_width[current_board]-board_headerx[current_board]-board_footerx[current_board])/cols;
-	var col_height = (board_height[current_board]-board_headery[current_board]-board_footery[current_board])/rows;
+function move_pawn() {
+    var pawn_x =0;
+    var pawn_y=0;
+    var direction=0;
+    var cols = board_cols[current_board];
+    var rows = board_rows[current_board];
+    var col_width = (board_width[current_board]-board_headerx[current_board]-board_footerx[current_board])/cols;
+    var col_height = (board_height[current_board]-board_headery[current_board]-board_footery[current_board])/rows;
     
-	if( current_position  >= 0)
-	{
+	if( current_position  >= 0) {
 		direction=Math.floor((current_position /cols))%2;
 		if (direction == 1) {
 			axis_x=(cols-(current_position %cols)-1);
-		}else
+		} else {
 			axis_x=current_position %cols;
+        }
 				
 		axis_y=Math.floor((current_position /rows));
 		pawn_x=board_headerx[current_board]+(axis_x*col_width)+(col_width-pawn_width[current_board])/2;
@@ -505,7 +482,7 @@ function move_pawn()
  
 	};
  
-	// private method for UTF-8 decoding
+	// Private method for UTF-8 decoding.
 	function Base64_utf8_decode(utftext) {
 		var string = "";
 		var i = 0;