Index: trunk/admin/include/mainscript.php
===================================================================
diff -u -N -r964 -r1016
--- trunk/admin/include/mainscript.php	(.../mainscript.php)	(revision 964)
+++ trunk/admin/include/mainscript.php	(.../mainscript.php)	(revision 1016)
@@ -277,6 +277,18 @@
 	}
 }
 
+function ValidThemeName(name_str)
+{
+	if (trim(name_str) == '') return false;
+	var re = new RegExp('^[a-zA-Z0-9_ ]{1,}$');
+	if (name_str.match(re)) {
+		return true;
+	}
+	else {
+		return false;
+	}
+}
+
 function DaysInMonth(month,year)
 {
   timeA = new Date(year, month,1);