function $(id) {
    return document.getElementById(id);
}

window.onload = function() {
    $('link').onload = function() {
       getHttpRequest();
       return false;
    }
}

function getHttpRequest() {

    var xmlhttp = null;
    // Mozilla
    if (window.XMLHttpRequest) {
        xmlhttp = new XMLHttpRequest();
    }
    // IE
    else if (window.ActiveXObject) {
        xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
    }

    xmlhttp.open("GET", 'http://www.agentur-jasmin.de/anzeige/read-4026.html', true);
    xmlhttp.onreadystatechange = function() {
        if(xmlhttp.readyState != 4) {
            $('ergebnis').innerHTML = 'Seite wird geladen ...';
        }
        if(xmlhttp.readyState == 4 && xmlhttp.status == 200) {
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        }
    }
    xmlhttp.send(null);
}