var submittedAlready = false;
function trySubmit() {
	if(submittedAlready) {
		return false;
	} else {
		submittedAlready = true;
          return true;
        }
}
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;
}

function stateChanged()
{
if (xmlHttp.readyState==4)
{
document.getElementById("all_wishes").innerHTML=xmlHttp.responseText;
}
}

function updateWishlist(wishid, newrank, pdid)
{
if(submittedAlready) {
	return false;
}
xmlHttp=GetXmlHttpObject();
if (xmlHttp==null)
  {
  alert ("Your browser does not support AJAX!");
  return;
  }
submittedAlready = false;
var url="update_wl_ranking";
url=url+"?wid="+wishid;
url=url+"&nrank="+newrank;
url=url+"&p="+pdid;
xmlHttp.onreadystatechange=stateChanged;
xmlHttp.open("GET",url,true);
xmlHttp.send(null);
}