// JavaScript Document
var interval;
var menuId;
function setClass(id,newClass)
{
	document.getElementById(id).className = newClass;	
}

function set_interval(id)
{
	menuId = id;
	interval = setInterval('hideMenu()',20);	
}

function clear_interval()
{
	clearInterval(interval);
}

function hideMenu()
{
	document.getElementById(menuId).className = "div-invisible";	
	clearInterval(interval);
}

function showMenu(id)
{
	document.getElementById(id).className = "div-visible";	
}

function hideMenuById(idMenu)
{
	document.getElementById(idMenu).className = "div-invisible";
}