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];
		}
	}
	return true;
}

var preloadFlag = false;

function set_search_height(heights)
{
//sets the height for the search input based on browser - needed to make things line up in different browsers
	if(browser.isIE)
		document.all.query.style.height = heights.IE; 
	if(browser.isOpera)
		document.getElementById("query").style.height = heights.Opera; 
	if(browser.isMozilla)
		document.getElementById("query").style.height = heights.Mozilla; 
}

function preloadSetup(height_array) {
	if (document.images) {
		//global nav
		residency_over = newImage("/images/globalnav/res_programs_on.gif");
		med_over = newImage("/images/globalnav/med_programs_on.gif");
		visit_over = newImage("/images/globalnav/visit_programs_on.gif");
		comp_over = newImage("/images/globalnav/comp_benefits_on.gif");
		hosptial_over = newImage("/images/globalnav/about_hospital_on.gif");
		community_over = newImage("/images/globalnav/about_community_on.gif");
		contact_over = newImage("/images/globalnav/contact_on.gif");
		sitemap_over = newImage("/images/globalnav/sitemap_on.gif");
		
		//Residency Programs nav
		surgery_over = newImage("/images/localnav/res_programs/gen_surgery_on.gif");
		medicine_over = newImage("/images/localnav/res_programs/int_medicine_on.gif");
		gyne_over = newImage("/images/localnav/res_programs/ob_gyn_on.gif");
		ta_over = newImage("/images/localnav/res_programs/trans_year_on.gif");
		emergency_over = newImage("/images/localnav/res_programs/emergency_med_on.gif");
		pediatrics_over = newImage("/images/localnav/res_programs/int_med_ped_on.gif");
		
		//Medical Program nav
		mpguide_over = newImage("/images/localnav/med_programs/guide_req_on.gif");
		mpinterview_over = newImage("/images/localnav/med_programs/interview_process_on.gif");
		mpelectives_over = newImage("/images/localnav/med_programs/electives_on.gif");
		mpapply_over = newImage("/images/localnav/med_programs/apply_rotation_on.gif");
		mpcontact_over = newImage("/images/localnav/med_programs/contact_on.gif");

		//Visiting Resident Program nav
		vrpguide_over = newImage("/images/localnav/visit_programs/guide_req_on.gif");
		vrpinterview_over = newImage("/images/localnav/visit_programs/interview_process_on.gif");
		vrpelectives_over = newImage("/images/localnav/visit_programs/electives_on.gif");
		vrpapply_over = newImage("/images/localnav/visit_programs/apply_res_program_on.gif");
		vrpcontact_over = newImage("/images/localnav/visit_programs/contact_on.gif");
				
		//Compensation & benefits nav
		salary_over = newImage("/images/localnav/comp_benefits/salaries_on.gif");
		leave_over = newImage("/images/localnav/comp_benefits/leave_holidays_on.gif");
		benefits_over = newImage("/images/localnav/comp_benefits/ins_benefits_on.gif");
		sports_over = newImage("/images/localnav/comp_benefits/sports_fac_on.gif");
		ancillary_over = newImage("/images/localnav/comp_benefits/ancillary_serv_on.gif");
		
		//About our Hospital nav
		stats_over = newImage("/images/localnav/about_hospital/stats_on.gif");
		tours_over = newImage("/images/localnav/about_hospital/tours_on.gif");
		interviewschairs_over = newImage("/images/localnav/about_hospital/interviewschairs_on.gif");
		interviewsdirs_over = newImage("/images/localnav/about_hospital/interviewsdirs_on.gif");
		interviewsres_over = newImage("/images/localnav/about_hospital/interviewsres_on.gif");
		
		//About our Community nav
		annarbor_over = newImage("/images/localnav/about_community/annarbor_on.gif");
		ypsilanti_over = newImage("/images/localnav/about_community/ypsilanti_on.gif");
		links_over = newImage("/images/localnav/about_community/resources_on.gif");
		
		preloadFlag = true;
	}
	set_search_height(height_array);
}

function search_submit()
{
	document.searchform.submit();
}

function openWindow(url) {
	settings = "width=650,height=515,left=25,top=25,status=yes,scrollbars=yes,toolbar=yes,menubar=yes,location=no,resizable=yes";
	nw = open(url, 'videopopup', settings);
	nw.focus();
}

// auto-size popup
PositionX = 25;
PositionY = 25;
defaultWidth  = 500;
defaultHeight = 500;

// Set autoclose true to have the window close automatically
// Set autoclose false to allow multiple popup windows
var AutoClose = true;

if (parseInt(navigator.appVersion.charAt(0))>=4){
var isNN=(navigator.appName=="Netscape")?1:0;
var isIE=(navigator.appName.indexOf("Microsoft")!=-1)?1:0;}
var optNN='scrollbars=no,width='+defaultWidth+',height='+defaultHeight+',left='+PositionX+',top='+PositionY;
var optIE='scrollbars=no,width=150,height=100,left='+PositionX+',top='+PositionY;
function popImage(imageURL,imageTitle){
if (isNN){imgWin=window.open('about:blank','',optNN);}
if (isIE){imgWin=window.open('about:blank','',optIE);}
with (imgWin.document){
writeln('<html><head><title>Loading...</title><style>body{margin:0px;}</style>');writeln('<sc'+'ript>');
writeln('var isNN,isIE;');writeln('if (parseInt(navigator.appVersion.charAt(0))>=4){');
writeln('isNN=(navigator.appName=="Netscape")?1:0;');writeln('isIE=(navigator.appName.indexOf("Microsoft")!=-1)?1:0;}');
writeln('function reSizeToImage(){');writeln('if (isIE){');writeln('window.resizeTo(100,100);');
writeln('width=100-(document.body.clientWidth-document.images[0].width);');
writeln('height=100-(document.body.clientHeight-document.images[0].height);');
writeln('window.resizeTo(width,height);}');writeln('if (isNN){');       
writeln('window.innerWidth=document.images["George"].width;');writeln('window.innerHeight=document.images["George"].height;}}');
writeln('function doTitle(){document.title="'+imageTitle+'";}');writeln('</sc'+'ript>');
if (!AutoClose) writeln('</head><body bgcolor=000000 scroll="no" onload="reSizeToImage();doTitle();self.focus()">')
else writeln('</head><body bgcolor=000000 scroll="no" onload="reSizeToImage();doTitle();self.focus()" onblur="self.close()">');
writeln('<img name="George" src='+imageURL+' style="display:block"></body></html>');
close();		
}}