function hideall(){
document.getElementById("menue1").style.zIndex="1";
document.getElementById("menue2").style.zIndex="1";
document.getElementById("menue3").style.zIndex="1";
document.getElementById("menue4").style.zIndex="1";
document.getElementById("menue5").style.zIndex="1";
document.getElementById("menue6").style.zIndex="1";
document.getElementById("menue7").style.zIndex="1";
}

function viewmenu(ebene){
hideall();
document.getElementById(ebene).style.zIndex="10";
}

function fadeout(){
window.setTimeout("hideall()",2000);
}