function popup(pagina,w,h,s) {
   if (self.screen) { 
      sw = screen.width
      sh = screen.height
      cx = (.5*sw) - (w*.5)
      cy = (.5*sh) - (h*.5)
      var  dimentions_and_such = 'width='+w+','+'height='+h+',' + 'screenX=' +cx+','+'screenY='+cy+','+'left='+cx+','+'top='+cy+',scrollbars='+s
   }
   Pop=window.open(pagina,"popuniversia",dimentions_and_such);
}
<!-- _________________________________________________________________________Preload Script -->
userAgent = window.navigator.userAgent;
browserVers = parseInt(userAgent.charAt(userAgent.indexOf("/")+1),10);
function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function findElement(n,ly) {
	if (browserVers < 4)		return document[n];
	var curDoc = ly ? ly.document : document;
	var elem = curDoc[n];
	if (!elem) {
		for (var i=0;i<curDoc.layers.length;i++) {
			elem = findElement(n,curDoc.layers[i]);
			if (elem) return elem;
		}
	}
	return elem;
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		var img;
		for (var i=0; i<changeImages.arguments.length; i+=3) {
			img = null;
			if (changeImages.arguments[2]!= area) {
				if (document.layers) {
					img = findElement(changeImages.arguments[i],0);
				}
				else {
					img = document.images[changeImages.arguments[i]];
				}
				if (img) {
					img.src = changeImages.arguments[i+1];
				}
			}
		}
	}
}

var preloadFlag = false;
var area = '';
var root = '../';
function preloadImages() {
	// Coloque a definicao da variavel no onload se for o caso <body onload="root='/santanderuniversidades/site/'; preloadImages('instituicaoi') " >
	if (document.images) {
		menu_area04 = newImage(root + "img/menu/menu_area04.gif");
		menu_area05 = newImage(root + "img/menu/menu_area05.gif");
		menu_area06 = newImage(root + "img/menu/menu_area06.gif");
		preloadFlag = true;
		area = preloadImages.arguments[0];
		//trocaBanner (area);
		switch (area){
			case 'aluno':
				document.getElementById("menu-area01").className = "menu-area01 inline";
				document.getElementById("link-aba01").href = "#";
				changeImages('menu_area01', root + 'img/menu/menu_area04.gif'); return true;
				break;
			case 'alunoi':
				document.getElementById("menu-area01").className = "menu-area01 inline";
				changeImages('menu_area01', root + 'img/menu/menu_area04.gif'); return true;
				break;
			case 'professor':
				document.getElementById("menu-area02").className = "menu-area02 inline";
				document.getElementById("link-aba02").href = "#";
				changeImages('menu_area02', root + 'img/menu/menu_area05.gif'); return true;
				break;
			case 'professori':
				document.getElementById("menu-area02").className = "menu-area02 inline";
				changeImages('menu_area02', root + 'img/menu/menu_area05.gif'); return true;
				break;
			case 'instituicao':
				document.getElementById("menu-area03").className = "menu-area03 inline";
				document.getElementById("link-aba03").href = "#";
				changeImages('menu_area03', root + 'img/menu/menu_area06.gif'); return true;
				break;
			case 'instituicaoi':
				document.getElementById("menu-area03").className = "menu-area03 inline";
				changeImages('menu_area03', root + 'img/menu/menu_area06.gif'); return true;
				break;
		}
		
	}
}
var contador = 0;
var lista_bannersa = [root + 'img/banner-linkvitrine.jpg',root + 'img/banner_fit.gif']
var lista_linksa = ['http://www.linkvitrine.com.br/santander/','javascript:popup(root + "hotsite/cartao_fit/index.html","665","477","0");']
var lista_targeta = ['','_blank','']

var lista_bannersp = [root + 'img/banner_estaduais.jpg',root + 'img/banner-linkvitrine.jpg',root + 'img/banner_federais.jpg']
var lista_linksp = ['ofertasestaduais.jsp','http://www.linkvitrine.com.br/santander/','ofertasfederais.jsp']
var lista_targetp = ['','_blank','']

function chama_trocaBanner () {
	setInterval ( "trocaBanner(area)", 8000 );
}
function trocaBanner () {
	//alert(contador>=(lista_banners.length-1));
	//alert(area + 'novo1');
	switch (area){
		case 'aluno':
			changeImages('banner_parceria', lista_bannersa[contador]); 
			document.getElementById("link-banner").href = lista_linksa[contador];
			document.getElementById("link-banner").target = lista_targeta[contador];
			if(contador>=(lista_bannersa.length-1)){
				contador=0;
			}else{
				contador++;
			}
			break;
		case 'alunoi':
			changeImages('banner_parceria', lista_bannersa[contador]); 
			document.getElementById("link-banner").href = lista_linksa[contador];
			document.getElementById("link-banner").target = lista_targeta[contador];
			if(contador>=(lista_bannersa.length-1)){
				contador=0;
			}else{
				contador++;
			}
			break;
		case 'professor':
			changeImages('banner_parceria', lista_bannersp[contador]); 
			document.getElementById("link-banner").href = lista_linksp[contador];
			document.getElementById("link-banner").target = lista_targetp[contador];
			if(contador>=(lista_bannersp.length-1)){
				contador=0;
			}else{
				contador++;
			}
			break;
		case 'professori':
			changeImages('banner_parceria', lista_bannersp[contador]); 
			document.getElementById("link-banner").href = lista_linksp[contador];
			document.getElementById("link-banner").target = lista_targetp[contador];
			if(contador>=(lista_bannersp.length-1)){
				contador=0;
			}else{
				contador++;
			}
			break;
	}
	return true;
}
<!-- _________________________________________________________________________Preload Script -->
<!-- _________________________________________________________________________gambiarra pra burlar o cache de sxf do IE6 -->
function retornaSWF(){
	var cache = Math.random(100000);
	return cache;
}
<!-- _________________________________________________________________________gambiarra pra burlar o cache de sxf do IE6 -->
<!-- _________________________________________________________________________ divs ocultos -->
function oculto(quem, estado){
	switch(estado){
		case 'abre':
			document.getElementById(quem).className = "block";
			break;
		case 'fecha':
			document.getElementById(quem).className = "";
			break;
	}
}
<!-- _________________________________________________________________________ divs ocultos -->
<!-- _________________________________________________________________________ arruma a posição do Fale conosco -->
function formFale(estado){
	switch(estado){
		case 'abre':
			document.getElementById("faleConosco").style.left = "220px";
			document.getElementById("faleConosco").style.width = "510px";
			break;
		case 'fecha':
			document.getElementById("faleConosco").style.left = "480px";
			document.getElementById("faleConosco").style.width = "250px";
			break;
	}
}
<!-- _________________________________________________________________________ arruma a posição do Fale conosco -->