var xmlhttp
var loaderImage = '<img src="images/loader.gif" class="loader" />';
var loaderImageSmall = '<img src="images/loader2.gif" />';

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

var url="root.php";
url=url+"?ref="+str;
url=url+"&sid="+Math.random();
xmlhttp.onreadystatechange=stateChanged;
xmlhttp.open("GET",url,true);
xmlhttp.send(null);
}

function stateChanged()
{
var cbody = document.getElementById("cbody");
var linkLoader = document.getElementById("home");

	linkLoader.innerHTML=loaderImageSmall;
	
	if (xmlhttp.readyState==4)	{
		cbody.innerHTML=xmlhttp.responseText;
		linkLoader.innerHTML="";
		}
}

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;
}