// JavaScript Document

 
   function gt_search()
   {
   xmlhttp=GetXmlHttpObject();
   if (xmlhttp==null)
   {
   alert ("Your browser does not support AJAX!");
   return;
   }
   var url="show_search.php";
   xmlhttp.onreadystatechange=assgn_cntt;
   xmlhttp.open("GET",url,true);
   xmlhttp.send(null);	 
   }
   
   
   function assgn_cntt()
   {
   if (xmlhttp.readyState==4)
   {
   document.getElementById("srch").style.display="block";
   document.getElementById("srch").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;
     }