var xmlHttp2

function getnews(str)
{ 
xmlHttp2=GetXmlHttpObject2()
if (xmlHttp2==null)
 {
 alert ("Browser does not support HTTP Request")
 return
 }
//document.getElementById(str).innerHTML = 'test';
var url2="getnews.php"
url2=url2+"?q="+str
url2=url2+"&sid="+Math.random()
xmlHttp2.onreadystatechange=stateChanged2 
xmlHttp2.open("GET",url2,true)
xmlHttp2.send(null)
}

function stateChanged2() 
{ 
if (xmlHttp2.readyState==4 || xmlHttp2.readyState=="complete")
 { 
 document.getElementById("post").innerHTML=xmlHttp2.responseText 
 } 
}

function GetXmlHttpObject2()
{
var xmlHttp2=null;
try
 {
 // Firefox, Opera 8.0+, Safari
 xmlHttp2=new XMLHttpRequest();
 }
catch (e)
 {
 //Internet Explorer
 try
  {
  xmlHttp2=new ActiveXObject("Msxml2.XMLHTTP");
  }
 catch (e)
  {
  xmlHttp2=new ActiveXObject("Microsoft.XMLHTTP");
  }
 }
return xmlHttp2;
}