+}
+
+/**
+ * Compresses the Javascript code for more efficient delivery.
+ * copyright (c) 2005 by Jared White & J. Max Wilson
+ * http://www.xajaxproject.org
+ * Added removing comments from output.
+ * Warning: Fails on RegExp with quotes - use new RegExp() in this case.
+ */
+function js_compress($sJS)
+{
+ //remove windows cariage returns
+ $sJS = str_replace("\r","",$sJS);
+
+ //array to store replaced literal strings
+ $literal_strings = array();
+
+ //explode the string into lines
+ $lines = explode("\n",$sJS);
+ //loop through all the lines, building a new string at the same time as removing literal strings
+ $clean = "";
+ $inComment = false;
+ $literal = "";
+ $inQuote = false;
+ $escaped = false;
+ $quoteChar = "";
+
+ for($i=0;$i<count($lines);$i++)
+ {
+ $line = $lines[$i];
+ $inNormalComment = false;
+
+ //loop through line's characters and take out any literal strings, replace them with ___i___ where i is the index of this string
+ for($j=0;$j<strlen($line);$j++)
+ {
+ $c = substr($line,$j,1);
+ $d = substr($line,$j,2);
+
+ //look for start of quote
+ if(!$inQuote && !$inComment)
+ {
+ //is this character a quote or a comment
+ if(($c=="\"" || $c=="'") && !$inComment && !$inNormalComment)
+ {
+ $inQuote = true;
+ $inComment = false;
+ $escaped = false;
+ $quoteChar = $c;
+ $literal = $c;
+ }
+ else if($d=="/*" && !$inNormalComment)
+ {
+ $inQuote = false;
+ $inComment = true;
+ $escaped = false;
+ $quoteChar = $d;
+ $literal = $d;
+ $j++;
+ }
+ else if($d=="//") //ignore string markers that are found inside comments
+ {
+ $inNormalComment = true;
+ $clean .= $c;
+ }
+ else
+ {
+ $clean .= $c;
+ }
+ }
+ else //allready in a string so find end quote
+ {
+ if($c == $quoteChar && !$escaped && !$inComment)
+ {
+ $inQuote = false;
+ $literal .= $c;
+
+ //subsitute in a marker for the string
+ $clean .= "___" . count($literal_strings) . "___";
+
+ //push the string onto our array
+ array_push($literal_strings,$literal);
+
+ }
+ else if($inComment && $d=="*/")
+ {
+ $inComment = false;
+ $literal .= $d;
+
+ //subsitute in a marker for the string
+ $clean .= "___" . count($literal_strings) . "___";
+
+ //push the string onto our array
+ array_push($literal_strings,$literal);
+
+ $j++;
+ }
+ else if($c == "\\" && !$escaped)
+ $escaped = true;
+ else
+ $escaped = false;
+
+ $literal .= $c;
+ }
+ }
+ if($inComment) $literal .= "\n";
+ $clean .= "\n";
+ }
+ //explode the clean string into lines again
+ $lines = explode("\n",$clean);
+
+ //now process each line at a time
+ for($i=0;$i<count($lines);$i++)
+ {
+ $line = $lines[$i];
+
+ //remove comments
+ $line = preg_replace("/\/\/(.*)/","",$line);
+
+ //strip leading and trailing whitespace
+ $line = trim($line);
+
+ //remove all whitespace with a single space
+ $line = preg_replace("/\s+/"," ",$line);
+
+ //remove any whitespace that occurs after/before an operator
+ $line = preg_replace("/\s*([!\}\{;,&=\|\-\+\*\/\)\(:])\s*/","\\1",$line);
+
+ $lines[$i] = $line;