//browser detection
var isNav=false;
var isIE=false;
var coll;
var style;
var activeMenu = 0;

if( parseInt(navigator.appVersion) >= 4){
        if(navigator.appName == "Netscape"){
                isNav = true;
                coll = "document";
                style = "";
        } else {
                isIE = true;
                coll="document.all";
                style = ".style";}}
if(!isNav && !isIE){
        top.location.href="index.html"}
var menu_aktiv = 0;
function menu(Rubrik, seite, runter)
                {if( menu_aktiv != Rubrik) {
                        if (menu_aktiv) menu_zu("menu"+menu_aktiv);
                        if (isNav) {
                                eval('document["' + 'menu' + Rubrik + '"].top = runter');
                                eval('document["' + 'menu' + Rubrik + '"].left = seite');
                        } else {
                                eval('document.all["' + 'menu' + Rubrik + '"].style.pixelTop = runter');
                                eval('document.all["' + 'menu' + Rubrik + '"].style.pixelLeft = seite');}}
                menu_auf("menu"+Rubrik);
                menu_aktiv = Rubrik;}
        function menu_auf(menu_name){
                eval(coll + '["' + menu_name + '"]' + style + '.visibility = "visible"');}
        function menu_zu(menu_name){
                eval(coll + '["' + menu_name + '"]' + style + '.visibility = "hidden"');}
        function alleaus(){if (menu_aktiv)
                        {menu_zu("menu"+menu_aktiv);
                        menu_aktiv = 0;}}
function init() {if (isNav) {document.captureEvents(Event.MOUSEUP);}
                document.onmouseup = alleaus;}