var http_request = false;
var pObjDiv = null;
    function makeRequest(url) {
        //alert(url);
        //window.location.replace(url);
        //return;
        if (window.XMLHttpRequest) { // Mozilla, Safari, ...
            http_request = new XMLHttpRequest();
            if (http_request.overrideMimeType) {
                http_request.overrideMimeType('text/xml');
                // See note below about this line
            }
        } else if (window.ActiveXObject) { // IE
            try {
                http_request = new ActiveXObject("Msxml2.XMLHTTP");
            } catch (e) {
                try {
                    http_request = new ActiveXObject("Microsoft.XMLHTTP");
                } catch (e) {}
            }
        }

        if (!http_request) {
            alert('Giving up :( Cannot create an XMLHTTP instance');
            return false;
        }
        http_request.onreadystatechange = function() { writeContents(http_request); };
        http_request.open('GET', url, true);
        http_request.send(null);

    }

    function writeContents(http_request) {

        if (http_request.readyState == 4) {
            if (http_request.status == 200) {
                //Server code creates javascript "on the fly" for us to
                //execute using eval()
                var result = http_request.responseText;
                //errors are returned as formatted HTML, so block errors
                if (result.indexOf("<html")== -1 && result.indexOf("<HTML")== -1) {
                   try
                   {
                        eval(result);
                    }
                    catch (e) { alert('There was a problem with the request, please try again.'); }
                    
                } else {
                    alert('There was a problem with the request, please try again.');
                }
            } else {
                alert('There was a problem with the request, please try again.');
            }
        }

    }