var xmlHttp

function star(rating,img_id)
 { 
 xmlHttp=GetXmlHttpObject();
 if (xmlHttp==null)
  {
  alert ("Browser does not support HTTP Request");
  return;
  }
 var url="../../../star.php";
 url=url+"?rating="+rating+"&img_id="+img_id;
 url=url+"&sid="+Math.random();
 xmlHttp.onreadystatechange = function () { stateChanged (); };
 xmlHttp.open("GET",url,true);
 xmlHttp.send(null);
 }

function stateChanged() 
 { 
 if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
  { 
  document.getElementById("gallery_rate_box").innerHTML=xmlHttp.responseText 
  } 
 }

function GetXmlHttpObject()
{
var xmlHttp=null;
try
 {
 // Firefox, Opera 8.0+, Safari
 xmlHttp=new XMLHttpRequest();
 }
catch (e)
 {
 // Internet Explorer
 try
  {
  xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
  }
 catch (e)
  {
  xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
  }
 }
return xmlHttp;
}