if (window.opera) {OP=1;}else{ OP='';}
if (document.getElementById) {DHTML=1; DOM=1;}
if (document.all && !OP) { DHTML=1; MS=1;}
if (document.layers) { DHTML=1; NS=1;}

//===========
function KlappMenueAuf(nr){
if (DHTML) {
if (DOM)
document.getElementById("NaviLinks"+nr).style.visibility="visible";

else if (MS && !DOM){
var element="NaviLinks"+nr;
document.all.element.visibility="visible";
}
else if ( NS ){
var element="NaviLinks"+nr;
document.element.visibility="show";
}
}
}

//============
function KlappMenueZu(nr){
if (DHTML) {
if (DOM)
document.getElementById("NaviLinks"+nr).style.visibility="hidden";

else if (MS && !DOM){
var element="NaviLinks"+nr;
document.all.element.visibility="hidden";
}
else if ( NS ){
var element="NaviLinks"+nr;
document.element.visibility="hide";
}
}
}