function ajax(url,target,u) {
		document.getElementById('weit').style.display = 'block';
		if (u == 1){
			var myRandom=parseInt(Math.random()*99999999);
			var url = url + "?rand=" + myRandom;
		}
    if (window.XMLHttpRequest) {
        req = new XMLHttpRequest();
        req.onreadystatechange = function() {ajaxDone(target);};
        req.open("GET", url, true);
        req.send(null);
    } else if (window.ActiveXObject) {
        req = new ActiveXObject("Microsoft.XMLHTTP");
        if (req) {
            req.onreadystatechange = function() {ajaxDone(target);};
            req.open("GET", url, true);
            req.send();
        }
    }
}    

function ajaxDone(target) {
    if (req.readyState == 4) {
        if (req.status == 200) {
            results = req.responseText;
            document.getElementById(target).innerHTML = results;
						document.getElementById('weit').style.display = 'none';
        } else {
            document.getElementById(target).innerHTML="Error: " + req.statusText;
        }
    }
}