var xmlHttp3

function insert_favourites(relative_path,id_reg, change){ 
    xmlHttp3=GetXmlHttpObject3();
    if (xmlHttp3==null){
        alert ("Browser does not support HTTP Request");
        return;
    }
    var url="viewer/addToFavourites.jsp";
    url=url+"?id_reg="+id_reg+"&relative_path="+relative_path+"&change="+change;
    url=url+"&sid="+Math.random();
    xmlHttp3.onreadystatechange=stateChanged3;
    xmlHttp3.open("GET",url,true);
    xmlHttp3.send(null);
}

function stateChanged3() { 
    if (xmlHttp3.readyState==4 || xmlHttp3.readyState=="complete"){ 
        document.getElementById("addFavourite").innerHTML=xmlHttp3.responseText ;
    } 
}

function GetXmlHttpObject3(){
    var xmlHttp3=null;
    try {
        // Firefox, Opera 8.0+, Safari
        xmlHttp3=new XMLHttpRequest();
    }catch (e) {
        //Internet Explorer
        try{
            xmlHttp3=new ActiveXObject("Msxml2.XMLHTTP");
        }catch (e){
            xmlHttp3=new ActiveXObject("Microsoft.XMLHTTP");
        }
    }
    return xmlHttp3;
}