get handle with RegExp RegExpQuickTester 2.5p  will help    put all the ClassNameNN keys here old and new here you can put your filter (Search pattern) an, in live time, test the pattern, and see which cases it catches, and readjust it here it shows which cases it catches here I have put '3 - Retum array of global matches'  here you can use it as a storage space (for copying and pasting)