Curse you W3! You broke my script.

Right. So I have been testing a small piece of code in a basic HTML format without thinking about putting a W3 tag up top... then I did, and it broke!

So. Help me debug this please.

Here is my function (javascript)

function show_confirm(className) {
	var screen_width = document.body.clientWidth - 300;

	document.getElementById("alert-box").styleName = className;
	document.getElementById("alert-box").style.display = "block";
	document.getElementById("alert-box").style.left = screen_width / 2 + "px";
}

Code (markup):

Very simple, eh?

Here is the CSS to go along with it.

#alert-box {
	position:fixed;
	_position:absolute;
	top:200;
	_top:expression(eval(document.body.scrollTop)+200);
}

Code (markup):

So, I know that _property doesn't validate... but that shouldn't force everything to go down the drain... at least in my experience I haven't seen it before. Which brings me to "I'm not sure why it broke it."

If you have any advice, rep will be given.

Thanks!!!

P.S. When I remove the _properties it still doesn't work.

 

Nevermind.... I think I found the issue.