var xmlHttp
    function GetXmlHttpObject()
    {
        var xmlHttp=null;
        try
        {
            // Firefox, Opera 8.0+, Safari
            xmlHttp=new XMLHttpRequest();
        }
        catch (e)
        {
            // Internet Explorer
            try
            {
                xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
            }
            catch (e)
            {
                xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
            }
        }
        return xmlHttp;
    }
    function GetTestimonial()
    {
        xmlHttp = GetXmlHttpObject();
        if (xmlHttp == null)
        {
            alert("Your browser does not support AJAX!");
            return ;
        }
        var url = "TestimonialAjax.aspx";
        xmlHttp.onreadystatechange = Statechanged_GetTestimonial;
        xmlHttp.open("GET",url,true);
        xmlHttp.send(null);
    }