function high(which2){
theobject=which2;

highlighting=setInterval("highlightit(theobject)",100);
}

function low(which2){
if(which2.style.visibility=='hidden'){
clearInterval(highlighting);
whichopen.filters.alpha.opacity=30;
}
}

function highlightit(cur2)
{
if (cur2.filters.alpha.opacity<100)
cur2.filters.alpha.opacity+=20;

else if (window.highlighting)
clearInterval(highlighting);
}
function closeall(){
menu0.style.visibility='hidden';
menu1.style.visibility='hidden';
menu2.style.visibility='hidden';
menu3.style.visibility='hidden';
menu4.style.visibility='hidden';
}

function showmenu(objdiv){
if(objdiv.style.visibility=='hidden'){
closeall();
objdiv.style.visibility='visible';
low(whichopen);
high(objdiv);
whichopen=objdiv;
 }
 }