var xmlhttp = null;

function GetTestimonials()
{
    if (window.XMLHttpRequest) {
        // code for IE7+, Firefox, Chrome, Opera, Safari
        xmlhttp = new XMLHttpRequest();
    }
    if (window.ActiveXObject) {
        // code for IE6, IE5
        xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
    }

    if (xmlhttp == null) {
        alert("Browser does not support HTTP Request");
        return;
    }

    var url = "includes/testimonials.php" + "?sid=" + Math.random();
    xmlhttp.onreadystatechange = PrintTestimonials;
    xmlhttp.open("GET", url, true);
    xmlhttp.send(null);
}

function PrintTestimonials()
{
    if (xmlhttp.readyState == 4)
    {
        if (xmlhttp.responseText != 'none')
        {
            document.getElementById('randomTestimonials').innerHTML = xmlhttp.responseText;
            document.getElementById('loading').innerHTML = '';
        }
    }
}