// JavaScript Document
<!-- hide from old browsers
function loadPage( pageURL )
{
	location.href = pageURL.options[pageURL.selectedIndex].value;
}
//-->
var old;
var memold;
var subold;
if( document.layers )
{
	window.captureEvents(Event.MOUSEDOWN);
	window.onmousedown = do_out;
} 
else
	document.onmouseup = do_out; 

function show_layer( id )
{
	if( document.getElementById(id).style.display == "" )
		document.getElementById(id).style.display = "none";
	else
		document.getElementById(id).style.display = "";
}

function do_menu( id )
{
	if( !old )
		old = memold;
	if( old != id )
	{
		show_layer(id);
		old = id;
	} 
	else
		old = '';
}
function do_check( id )
{
	if (old && old != id )
	{
		show_layer(old);
		show_layer(id);
		old = id;
	}
	do_submenu();
}
function do_out()
{
	if( old )
		show_layer(old);
	
	memold = old; 
	old = '';
	do_submenu();
}
function do_submenu( id )
{
	if( subold )
	{
		show_layer(subold);
		subold = '';
	}
	if( id )
	{
		show_layer(id);
		subold = id;
	}
}