var xmlhttp;

function updateContent(id,divName,phpFileName)
{
xmlhttp=GetXmlHttpObject();
if (xmlhttp==null)
  {
  alert ("Browser does not support HTTP Request");
  return;
  }
var url=phpFileName;
url=url+"?gid="+id;
url=url+"&sid="+Math.random();
//xmlhttp.onreadystatechange=stateChanged;
xmlhttp.onreadystatechange=function(){stateChanged(divName)}
xmlhttp.open("GET",url,true);
xmlhttp.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
xmlhttp.setRequestHeader("Content-Type", "text/xml; charset=iso-8859-1"); 
xmlhttp.send(null);
}

function stateChanged(divName)
{
if (xmlhttp.readyState==4)
{
 if (xmlhttp.status == 200) {
  document.getElementById(divName).innerHTML=xmlhttp.responseText;
 } else{}
}
}

function GetXmlHttpObject()
{
var xmlHttp=null;
try
{
// Firefox, Opera 8.0+, Safari
xmlHttp=new XMLHttpRequest();
xmlHttp.overrideMimeType('text/xml; charset=iso-8859-1'); //NO CHARACTER PROBLEM IN MOZILLA
}
catch (e)
{
// Internet Explorer
try
{
xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
xmlHttp.overrideMimeType('text/xml; charset=iso-8859-1'); // THIS DOES NOT WORK, I"VE COMMENTED IT
}
catch (e)
{
xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
}
}
return xmlHttp;
}