var request = creat_object();
	
	function creat_object(){
	
	var xmlhttp;
		// This if condition for  Firefox and  Opera  Browsers	
	  if (!xmlhttp && typeof XMLHttpRequest != 'undefined') 
	  {
			try 
			{
			  xmlhttp = new XMLHttpRequest();
			} 
			catch (e) 
			{
				alert("Your browser is not supporting XMLHTTPRequest");
				xmlhttp = false;
			}
		}
		// else condition for  ie
		else
		{
		xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
		}
	  return xmlhttp;
	}
	
	function call_server(getURL,s_ready){
		request.open("GET", getURL); 
		request.onreadystatechange = s_ready;
		request.send('');		
	}