// JavaScript Document
<!--
function GetXmlHttpObject()
{
var xmlHttp=null;
try
  {
  // Firefox, Opera 8.0+, Safari
  xmlHttp=new XMLHttpRequest();
  }
catch (e)
  {
  // Internet Explorer
  try
    {
    xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
    }
  catch (e)
    {
    xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
    }
  }
return xmlHttp;
}

function makerequest(serverpage){
	xmlHttp=GetXmlHttpObject();
	if (xmlHttp==null)
  		{
  		alert ("Your browser does not support AJAX!");
  		return;
  	} 
	var obj = document.getElementById('aqui');
	xmlHttp.open("GET",serverpage,true);
	xmlHttp.onreadystatechange=function()
	{
	if(xmlHttp.readyState==4)
	  {
	  obj.innerHTML = xmlHttp.responseText;
	  }
	}
	xmlHttp.send(null);
}
function rotativo(){
	document.getElementById('preImg').src = "imagens/preload.gif";
	makerequest("inc_banners.php");
	banner = setInterval('makerequest("inc_banners.php")',20000);
}
onload = rotativo;
-->