I have no idea if that's possible or not, but being a javascript question, I thought you might like to read this section from a post by Weedpacket:
If you have a Javascript question, go ask in a Javascript forum. Don't post here because you assume that we all "know about Javascript, too". Whether that's true or not is totally irrelevant: this is a PHP forum. If you want help with Javascript, you would obviously prefer to have help from Javascript experts, right? There are a lot of Javascript experts in the world who won't be here because they have nothing to do with PHP. By posting here you miss out on what they might be able to tell you. Your loss.
If you post a Javascript question here, you make things more difficult for people who are looking here for PHP solutions (because they have to eliminate the thread about your problem) and you make things more difficult for people who are looking for Javascript solutions in a Javascript forum (a tactic that you have to admit makes sense) because they won't see the thread about your problem. Or maybe a moderator will just delete the thread and save everyone the hassle (except you, but you hadn't made any effort anyway, so no loss there). One Javascript forum that is often recommended here is http://javascript.internet.com/forum/. Others can be found by typing "Javascript help forums" into Google. But then, you already knew that, didn't you?
Don't think I'm saying you can't post here. I honestly don't care. Just saying, it makes sense to post in a JS forum...