var xmlHttp_ar
function showArea(str)
{ 
xmlHttp_ar=GetXmlHttpObject()
if (xmlHttp_ar==null)
 {
 alert ("Browser does not support HTTP Request")
 return
 }
var url="areaajax.php"
url=url+"?q="+str
url=url+"&sid="+Math.random()
xmlHttp_ar.onreadystatechange=stateChanged_ar
xmlHttp_ar.open("GET",url,true)
xmlHttp_ar.send(null)
}function stateChanged_ar() 
{ 
if (xmlHttp_ar.readyState==4 || xmlHttp_ar.readyState=="complete")
 { 
 document.getElementById("txtArea").innerHTML=xmlHttp_ar.responseText 
 } 
}function GetXmlHttpObject()
{
var xmlHttp_ar=null;
try
 {
 // Firefox, Opera 8.0+, Safari
 xmlHttp_ar=new XMLHttpRequest();
 }
catch (e)
 {
 //Internet Explorer
 try
  {
  xmlHttp_ar=new ActiveXObject("Msxml2.XMLHTTP");
  }
 catch (e)
  {
  xmlHttp_ar=new ActiveXObject("Microsoft.XMLHTTP");
  }
 }
return xmlHttp_ar;
}