function ajaxFunction(str,div_name,ajax_func)
{
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.myForm.time.value=xmlHttp.responseText;
      div = document.getElementById(div_name);
      div.innerHTML = xmlHttp.responseText;
      }
    }
  var url = ajax_func;
  var curtime = new Date().getTime()
  url = url+"?q="+str+"&dummy="+curtime;
  xmlHttp.open("GET",url,true);
  xmlHttp.send(null);
  }