function login()
{

var xmlHttp;
try
  {
  // Firefox, Opera 8.0+, Safari
  xmlHttp=new XMLHttpRequest();
  }
catch (e)
  {
  // Internet Explorer
  try
    {
    xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
    }
  catch (e)
    {
    try
      {
      xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
      }
    catch (e)
      {
      alert("Your browser does not support AJAX!");
      return false;
      }
    }
  }
 	
	xmlHttp.onreadystatechange=function()
    {
	
    if(xmlHttp.readyState==4)
      {      
document.getElementById("testm").innerHTML=xmlHttp.responseText;
      }
    }
	
  xmlHttp.open("POST","test-main.php",true);
  xmlHttp.send(null);  

setTimeout('login();', 10000);

 }  
window.onload=login();