/****************** AJAX ONREADY STATE FUNCTION TO RECEIVE TEXT FROM BACK PAGE *******************/
	function onReadyState()
	{
		var data=null;
		if (req.readyState==READY_STATE_COMPLETE)
		{
			
			var xmlDoc = req.responseText; //receives the response text from back page
			var pos=xmlDoc.indexOf('^');
			var len=xmlDoc.length;
			var content=xmlDoc.substring(0,pos);
			var num=xmlDoc.substring(pos+1,len);
			//alert(content);
			
			if(num==1) // For username check Avlbilty
			{
				
				document.getElementById('imgcontainer').innerHTML =content;
			}
			
		}
	}