var ie=(document.all)?true:false;
var mz=(document.getElementById && !ie)?true:false;
var ns=(document.layers)?true:false;
var timeraaID = null;


function menuaa(secNum){
if(mz)
{
document.getElementById('alnk1').style.visibility=(secNum=='alnk1')?'':'hidden';
document.getElementById('alnk2').style.visibility=(secNum=='alnk2')?'':'hidden';
document.getElementById('alnk3').style.visibility=(secNum=='alnk3')?'':'hidden';
document.getElementById('alnk4').style.visibility=(secNum=='alnk4')?'':'hidden';
document.getElementById('alnk5').style.visibility=(secNum=='alnk5')?'':'hidden';
}
else if(ie)
{
alnk1.style.visibility = (secNum=='alnk1')?"":"hidden";
alnk2.style.visibility = (secNum=='alnk2')?"":"hidden";
alnk3.style.visibility = (secNum=='alnk3')?"":"hidden";
alnk4.style.visibility = (secNum=='alnk4')?"":"hidden";
alnk5.style.visibility = (secNum=='alnk5')?"":"hidden";
}
else
{
document.alnk1.visibility = (secNum=='alnk1')?"show":"hide";
document.alnk2.visibility = (secNum=='alnk2')?"show":"hide";
document.alnk3.visibility = (secNum=='alnk3')?"show":"hide";
document.alnk4.visibility = (secNum=='alnk4')?"show":"hide";
document.alnk5.visibility = (secNum=='alnk5')?"show":"hide";
}

}

function timeraa(secNum){
if(mz)
timeraaID = setTimeout('document.getElementById("'+secNum+'").style.visibility="hidden"','500');
else if(ie)
timeraaID = setTimeout(secNum+'.style.visibility="hidden"','500');
else
timeraaID = setTimeout('document.'+secNum+'.visibility="hide"','500');
}

function subMenuaa(){
clearTimeout(timeraaID)
}