var xmlHttp

function getsch(frm)
{
var pr=frm.pr.value
var an=frm.an.value
var dl=frm.dl.value
var lr=frm.lr.value

xmlHttp=GetXmlHttpObject()
if (xmlHttp==null)
 {
 alert ("Browser does not support HTTP Request")
 return
 } 
var url="./searchj.php"
url=url+"?pr="+pr+"&an="+an+"&dl="+dl+"&lr="+lr
url=url+"&sid="+Math.random()
xmlHttp.onreadystatechange=sstateChanged 
xmlHttp.open("GET",url,true)
xmlHttp.send(null)
}


function sstateChanged() 
{ 
if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
 { 
 document.getElementById("sess").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;
}