//suckerfish dropdown
portnav = function() {
	var sfEls = document.getElementById("nav").getElementsByTagName("LI");
	for (var i=0; i<sfEls.length; i++) {
		sfEls[i].onmouseover=function() {
			this.className+=" portnav";
		}
		sfEls[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp(" portnav\\b"), "");
		}
	}
}
if (window.attachEvent) window.attachEvent("onload", portnav);