/* dropdown menu stuff */
sfHover = function() {
	var sfEls = document.getElementById("icm-launcher").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(" sfhover\\b"), "");
				}
			}
		}
		if (window.attachEvent) window.attachEvent("onload", sfHover);
		if (document.images) {
			preload_image_object = new Image();	
			// set image url
			image_url = new Array();
			image_url[0] = "../images/nav.gif";
			var i = 0;
			for(i=0; i<=3; i++) {
						preload_image_object.src = image_url[i];
					}
		}