document.getElementsByClassName = function(cl) {
var retnode = [];
var myclass = new RegExp('\\b'+cl+'\\b');
var elem = this.getElementsByTagName('*');
for (var i = 0; i < elem.length; i++) {
var classes = elem[i].className;
if (myclass.test(classes)) retnode.push(elem[i]);
}
return retnode;
};


function get(url) {
    // native XMLHttpRequest object
    document.getElementsByClassName('innhold')[0].innerHTML = 'Loading... vær så snill å vente';
    if (window.XMLHttpRequest) {
        req = new XMLHttpRequest();
        req.onreadystatechange = function() {getDone();};
        req.open("GET", url, true);
        req.send(null);
    // IE/Windows ActiveX version
    } else if (window.ActiveXObject) {
        req = new ActiveXObject("Microsoft.XMLHTTP");
        if (req) {
            req.onreadystatechange = function() {getDone();};
            req.open("GET", url, true);
            req.send();
        }
    }
}    

function getDone() {
    // only if req is "loaded"
    if (req.readyState == 4) {
        // only if "OK"
        if (req.status == 200) {
            results = req.responseText;
            document.getElementsByClassName('innhold')[0].innerHTML = results;
            //alert(results);
        } else {
            document.getElementsByClassName('innhold')[0].innerHTML="jah error:\n" +
                req.statusText;
        }
    }
}