var xmlhttp
function browser(){

    if (window.XMLHttpRequest)
    {// code for IE7+, Firefox, Chrome, Opera, Safari
        xmlhttp=new XMLHttpRequest();
    }
    else
    {// code for IE6, IE5
        xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
    }
}
function loadXMLDoc(url)
{
    browser();
    var position = url.indexOf("?");
    if(position>0){
        url=url+"&sid="+Math.random();
    }
    else{
        url=url+"?sid="+Math.random();
    }
    //xmlhttp.onreadystatechange=stateChanged;
   // url=url+'#thr';
    
    xmlhttp.open("GET",url,false);
    xmlhttp.send(null);
    document.getElementById("changeDv").innerHTML=xmlhttp.responseText;
    window.location.hash = "thr";
}