var xmlhttp;

function loadContent(pageurl) {
//alert("test");
xmlhttp=GetXmlHttpObject();
if (xmlhttp==null)
  {
  alert ("Browser does not support HTTP Request");
  
  return;
  }
  
xmlhttp.onreadystatechange=stateChanged;
xmlhttp.open("GET",pageurl,true);
xmlhttp.send(null);
}
  
function stateChanged() {
	if (xmlhttp.readyState==4) {
		document.getElementById("navContent").innerHTML = 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;
}