// JavaScript for Vertical Popup Nav
// javascript for IE/win, since it does not support li:hover

iewinHover = function() {
	var li = document.getElementById("nav").getElementsByTagName("li");
	for (var i=0; i<li.length; i++) {
		li[i].onmouseover=function() {
			if (this.className == 'nosub ') this.style.backgroundImage='none';
			this.className+="iewin";
		}
		li[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp("iewin\\b"), "");
		}
	}
}

if (document.all) { // load only in IE
	if (window.attachEvent) window.attachEvent("onload", iewinHover);
 	else window.onload = iewinHover; // Mac IE5
}

if (document.images) {	// Preload images
	var images = new Array("line", "home_on", "people_on", "graduate_on", "undergraduate_on", "news_events_on", "contact_on");

	for (i = 0; i < images.length; i++) {
		var img = new Image();
		img.src = "images/nav_" + images[i] + ".gif";
	}
}