function onBodyLoad() {
	setInterval("loadPage2('imagemTopo','paginas/topo.php?id=1')", 15000);
}
function GetXMLHttp2() {
	try {
		xmlHttp2 = new XMLHttpRequest();
	}
	catch (e) {
		try {
			xmlHttp2 = new ActiveXObject("Msxml2.XMLHTTP");
		}
		catch (e) {
			xmlHttp2 = new ActiveXObject("Microsoft.XMLHTTP");
		}
	}
    return xmlHttp2;
}
function loadPage2(id,url) {
	var xmlRequest2 = GetXMLHttp2();
    var url = url+'&ajax';
    xmlRequest2.open("GET",url,true);    
    xmlRequest2.onreadystatechange = 
    function() {
	    if (xmlHttp2.readyState==4 || xmlHttp2.readyState=="complete"){ 
	        document.getElementById(id).innerHTML = xmlRequest2.responseText;
	    }
    };
    xmlRequest2.send(null);
    return url;
}
function substr (str, start, len) {
	str += '';
	var end = str.length;
	if (start < 0) {        
		start += end;
	}
	end = typeof len === 'undefined' ? end : (len < 0 ? len + end : len + start);
	return start >= str.length || start < 0 || start > end ? !1 : str.slice(start, end);
}
function marRoll(id,id2,url) {
	var vari = document.getElementById(id).src;
	var vari2 = document.getElementById(id2).src;
	if (substr(vari,-7) == 'Off.jpg') {
		//document.getElementById(id).src='img/'+substr(vari,-11,4)+'On.jpg';
		//document.getElementById(id2).src='img/'+substr(vari2,-11,5)+'Off.jpg';
	} else {
		document.getElementById(id).src='img/'+substr(vari,-11,5)+'Off.jpg';
		document.getElementById(id2).src='img/'+substr(vari2,-11,4)+'On.jpg';
		
	}
	ajaxMM('marcaRoll','paginas/marcaRolls.php?'+url,'2');
}
function ajaxMM(elemento,pagina,times){
		ajax(pagina,elemento)
		if (times == '1') {
			setTimeout("ajaxMM('"+elemento+"','"+pagina+"','1')",(1000*8));
		}
		elemento2 = elemento
}

function ajax(str, elemento){
    if (str.length==0){ 
        document.getElementById(elemento).innerHTML=""
        return
    }
    xmlHttp=GetXmlHttpObject()
    if (xmlHttp==null){
        alert ("Seu Browser não suporta a tecnologia utilizada (AJAX)")
        return
    }
    var url=str
    xmlHttp.onreadystatechange=
    function() {
	    if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete"){ 
	        document.getElementById(elemento).innerHTML=xmlHttp.responseText 
	    } else {
			document.innerHTML="<script>ajaxMM('"+elemento+"','"+url+"','1')</script>"
	    }
    }
    xmlHttp.open("GET",url,true)
    xmlHttp.send(null)
} 


function GetXmlHttpObject(){ 
    var objXMLHttp=null
    if (window.XMLHttpRequest){
        objXMLHttp=new XMLHttpRequest()
    } else if (window.ActiveXObject) {
        objXMLHttp=new ActiveXObject("Microsoft.XMLHTTP")
    }
    return objXMLHttp
}