function pv_send(pv_id, pv_pid, pv_vote)
{ 
  pv_idname = pv_id;
  pv_xmlHttp = pv_GetXmlHttpObject();
  if (pv_xmlHttp==null)
  {
    //alert("Your browser does not support AJAX!");
    return;
  }
  var url= pv_script_url;
  url=url+"?vote="+pv_vote;
  url=url+"&pid="+pv_pid
  pv_xmlHttp.onreadystatechange = pv_stateChanged;
  pv_xmlHttp.open("GET",url,true);
  pv_xmlHttp.send(null);
  return false;
}

function pv_stateChanged() 
{ 
  if (pv_xmlHttp.readyState==4)
  { 
    document.getElementById(pv_idname).innerHTML = pv_xmlHttp.responseText;
    pv_idname = "";
  }
}

function pv_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;
}