//Browser control vars.  Determines which browser the client is using.  Does NOT detect NS6.0 properly.
var isNav = (document.layers) ? true:false
var isIE = (document.all) ? true:false
var isOther = (!isNav&&!isIE) ? true:false
var preloadFlag = false
var dropdownsLoaded = false

function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		navengr_about_over = newImage("/images/includes/navengr_meche_about_r.gif");
		navengr_academics_over = newImage("/images/includes/navengr_meche_academics_r.gif");
		navengr_admissions_over = newImage("/images/includes/navengr_meche_admissions_r.gif");
		navengr_research_over = newImage("/images/includes/navengr_meche_research_r.gif");
		navengr_students_over = newImage("/images/includes/navengr_meche_students_r.gif");
		navengr_news_over = newImage("/images/includes/navengr_meche_news_r.gif");
		navengr_jobs_over = newImage("/images/includes/navengr_meche_jobs_r.gif");
		navengr_contacts_over = newImage("/images/includes/navengr_meche_contacts_r.gif");
		preloadFlag = true;
	}
}


function popup(url, name, wwidth, wheight, wresize, wscrolls){
    eval("window.open('" + url + "','" + name + "','toolbar=no,menubar=no,address=no,status=no,dependent=no,resizable=" + wresize + ",scrollbars=" + wscrolls + ",height=" + wheight + ",width=" + wwidth + "')");
}

function jumpto(form, name) {
	var myindex= eval('form.'+ name + '.selectedIndex');
    var myval=eval('form.' + name + '.options[myindex].value');
    if (myval != "") {
	location.href=myval;
    }
}

function external(url){
    eval("window.open('/external.asp?URL=" + escape(url) +"','butlerEXT','toolbar=yes,menubar=yes,address=yes,status=yes,dependent=no,resizable=1,height=540,width=760')");
}