var http_request = false;
function ajax(url, fenster, infos) {
http_request = false;
ausgabe = fenster;
if (window.XMLHttpRequest) { // Mozilla, Safari,...
http_request = new XMLHttpRequest();
if (this.http_request.overrideMimeType) {
this.http_request.overrideMimeType('text/xml');
}
} 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) {
alert('Kann keine XMLHTTP-Instanz erzeugen');
return false;
}
http_request.open('POST', url, true);
http_request.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
http_request.onreadystatechange = aus;
http_request.send(infos);
}
function aus() {
   if (http_request.readyState == 4) {
      document.getElementById(ausgabe).innerHTML = http_request.responseText;
   }
}
	function markAllRows( container_id ) {
    var rows = document.getElementById(container_id).getElementsByTagName('div');
    var unique_id;
    var checkbox;

    for ( var i = 0; i < rows.length; i++ ) {

        checkbox = rows[i].getElementsByTagName( 'input' )[0];

        if ( checkbox && checkbox.type == 'checkbox' ) {
            unique_id = checkbox.name + checkbox.value;
            if ( checkbox.disabled == false ) {
                checkbox.checked = true;
            }
        }
    }

    return true;
}

function unMarkAllRows( container_id ) {
    var rows = document.getElementById(container_id).getElementsByTagName('div');
    var unique_id;
    var checkbox;

    for ( var i = 0; i < rows.length; i++ ) {

        checkbox = rows[i].getElementsByTagName( 'input' )[0];

        if ( checkbox && checkbox.type == 'checkbox' ) {
            unique_id = checkbox.name + checkbox.value;
            checkbox.checked = false;
        }
    }

    return true;
}