tms=new Array()

//Mostra o submenu no mouseover
function over(n){
	if(typeof(tms[n])!="undefined")
	   clearTimeout(tms[n])
	document.getElementById("s"+n).style.visibility="visible"
}
//Esconde o submenu no mouseout
function out(n){
	tms[n]=setTimeout('document.getElementById("s'+n+'").style.visibility="hidden"',0)
}