cur = 1;
    var max = 2;
	var http_request = false;
	function ajax_request(url) {
        if(url<=0) url = max;
        if(url>max) url = 1;
        cur = url;
				url = 'ajax_squads.php?squad='+url;
        http_request = false;

        if (window.XMLHttpRequest) { // Mozilla, Safari,...
            http_request = new XMLHttpRequest();
            if (http_request.overrideMimeType) {
                http_request.overrideMimeType('text/xml');
                // zu dieser Zeile siehe weiter unten
            }
        } 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) {
            //$(div).innerHTML = 'Ende :( Kann keine XMLHTTP-Instanz erzeugen';
            //alert('Ende :( Kann keine XMLHTTP-Instanz erzeugen');
            return false;
        }
        http_request.onreadystatechange = function (){
			if (http_request.readyState == 4) {
				if (http_request.status == 200) {
					document.getElementById('squad_roster').innerHTML = http_request.responseText;
                   // $('squad_name').innerHTML = squads[cur];
					//alert(http_request.responseText);
				} else {
					//alert('Bei dem Request ist ein Problem aufgetreten.');
				}
			}
		};
        http_request.open('GET', url, true);
        http_request.send(null);

    }