// JavaScript Document
/*
function show()
{
document.getElementById("drop").style.visibility="visible"
}
function hide()
{
document.getElementById("drop").style.visibility="hidden"
}

function show2()
{
document.getElementById("drop2").style.visibility="visible"
}
function hide2()
{
document.getElementById("drop2").style.visibility="hidden"
}

function show3()
{
document.getElementById("drop3").style.visibility="visible"
}
function hide3()
{
document.getElementById("drop3").style.visibility="hidden"
}


*/





function showHide(whichLayer){
	var divPrefix="drop";
	var taretDiv;
	var i=0;
	for(i=1;i<=3;i++){
		 taretDiv=divPrefix+i;
		 if(taretDiv==whichLayer){
			document.getElementById(taretDiv).style.visibility="visible" 
		 }else{
			 document.getElementById(taretDiv).style.visibility="hidden" 
		 }
	}
}
function hideMenu(whichLayer){
	document.getElementById(whichLayer).style.visibility="hidden" 
	
}
function delayHide(whichLayer){
	var t= setTimeout("hideMenu('"+whichLayer+"')",10000);
	
}