var xmlhttp
window.onload=function showCD()
{

var str="";
xmlhttp=GetXmlHttpObject();
if (xmlhttp==null)
  {
  alert ("Your browser does not support AJAX!");
  return;
  }

var url="controls/tops.aspx";
xmlhttp.onreadystatechange=stateChanged;
xmlhttp.open("GET",url,true);
xmlhttp.send(null);
}

function stateChanged()
{

if (xmlhttp.readyState==4 && xmlhttp.status == 200)
{
 
 
 var newdiv = document.createElement("div");
newdiv.innerHTML = xmlhttp.responseText;
 var container = document.getElementById('txttop');
container.innerHTML = "";
 container.appendChild(newdiv);


 
 
 
 // document.getElementById('txttop').innerHTML=xmlhttp.responseText;
    
   //alert(xmlhttp.responseText);
    
}
}

function GetXmlHttpObject()
{
if (window.XMLHttpRequest)
  {
  
  // code for IE7+, Firefox, Chrome, Opera, Safari
  return new XMLHttpRequest();
  }
if (window.ActiveXObject)
  {
  // code for IE6, IE5
  return new ActiveXObject("Microsoft.XMLHTTP");
  }
return null;
}