Update to debug javascript

Set debug javascript flag in header inc and then set the variable in the
main body templates

www/layout/admin/default/javascript/debug.js

@@ -9,7 +9,6 @@
 */
 
 // if debug is set to true, console log messages are printed
-var DEBUG = true;
 if (!DEBUG)
 {
 	$($H(window.console)).each(function(w) {

www/layout/admin/default/templates/main_body.tpl

@@ -21,6 +21,11 @@
 	{if $CSS_SPECIAL_INCLUDE}
 	<link rel=stylesheet type="text/css" href="{$CSS_SPECIAL_INCLUDE}">
 	{/if}
+	<script language="JavaScript">
+	<!--
+	var DEBUG = {$JS_DEBUG};
+	//-->
+	</script>
 	<script language="JavaScript" src="{$js}/firebug.js"></script>
 	<script language="JavaScript" src="{$js}/debug.js"></script>
 	{if $USE_JQUERY}