I am looking for a Java/Javascript color overlay for a skin im making. I want that skin to have a grayscale version whitout me having to redo everything. There is a css tag that allows me to do that but it only works on IE. However I saw a few sites that had a grayscale overlay effect that worked in Firefox. Im thinking they used some sort of java script. If I would recal the site I would go back there and snatch it from their code. But I don't

. Any help in finding this is apreaciated!