function koordinate(menu)
{

if (navigator.appName.indexOf("Netscape") != -1){
showNS(menu);}
if (navigator.appName.indexOf("Explorer") != -1){
showIE(menu);}
if (browser.indexOf("opera") != -1){
showIE(menu);}
else{
showIE(menu);
}

}

function showNS(menu){
x = window.innerWidth;
if(x<980) 
window.showMenu(menu,174);
else 
window.showMenu(menu,x/2-490+162);
}

function showIE(menu){

if (window.event.srcElement.tagName == "TD") {
Y = window.event.srcElement.offsetTop + 169;
X = document.all.Anzeige.offsetLeft + 170}
else {
Y = window.event.srcElement.parentNode.offsetTop + 169;
X = document.all.Anzeige.offsetLeft + 170}

window.showMenu(menu,X,Y);
}