function openwindow(titel,bild,w,h,legend) {
    var wt = w + 10;
    var ht = h + 80;
    //var typo3path = "/typo3";
    var typo3path = "";
    var serverurl = "http://" + window.location.host + typo3path;
    var nav = (navigator.appName.indexOf ("Netscape") >= 0) ? true : false;
    if (nav) {
        var fB = window.innerWidth;
        if (fB < wt) {
            var features = "innerWidth=" + fB + ",innerHeight=" + ht;
        } else {
            var features = "innerWidth=" + wt + ",innerHeight=" + ht;
        }
    } else {
        var fB = document.body.clientWidth;
        if (fB < wt) {
            var features = "width=" + fB + ",height=" + ht;
        } else {
            var features = "width=" + wt + ",height=" + ht;
        }
    }
    features += ",top=0,left=0,scrollbars=no,toolbar=no,directories=no,status=no,resizable=yes,menubar=no";
    var hwimg = window.open(serverurl + "/hw_popup.php?Titel=" + titel + "&Langbild=" + bild + "&Legende=" + legend,"hw",features);
    hwimg.focus();
}