var req
try {
 req=new ActiveXObject("Msxml2.XMLHTTP")
} catch (e) {
 try {
  req=new ActiveXObject("Microsoft.XMLHTTP")
 } catch (e2) {
  try {
   req=new XMLHttpRequest()
  } catch(e3) {}
 }
}

function check_livechat()
{
if(!document.getElementById('livechat'))
 return
req.open("GET","livechat.php",true)
req.onreadystatechange = requestDone
req.send(null)
}

function requestDone()
{
if(req.readyState==4){
 if(req.responseText.indexOf("live_on")>=0)
  setLiveOn()
}
}

function setLiveOn()
{
var ls=document.getElementById('livechat')
ls.href="#"
ls.onclick=function(){ window.open("http://livechat.rx-partners.biz/cust_chat.php",'Cust','toolbar=0,location=0,directories=0,menubar=0,resizable,scrollbars,width=450,height=450');return false }
ls.alt="Live Support - ONLINE"
ls.firstChild.src="imgs/livechat_on.gif"
}