Why is this happening

I have a web site which works perfectly in IE, bnbut blowws up in any other browser. When I run it througha browser, I get an error in my javascript. Is this right?
<script type=”text/javascript”>
sfHover = function() {
var sfEls = document.getElementById(“nav”).getElementsByTagName(“LI”);
for (var i=0; i<sfEls.length; i++) {
sfEls[i].onmouseover=function() {
this.className+=” sfhover”;
}
sfEls[i].onmouseout=function() {
this.className=this.className.replace(new RegExp(” sfhoverb”), “”);
}
}
}
if (window.attachEvent) window.attachEvent(“onload”, sfHover);
</script>
If you want to see it in action, its at [url]www.lukesplace.com[/url],
Thanks

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