// JavaScript Document
//require preloadImages

//preload necessary images
//preloadImages('/images/pointer2.gif');

//Create navigation menu
//menuRegistry = Array();
//createSubmenu('submenu_0');
//createSubmenu('submenu_1');
//createSubmenu('submenu_2');
//createSubmenu('submenu_3');
//createSubmenu('submenu_4');

function createSubmenu(submenu)
{
	var id = submenu.substring(submenu.indexOf("_") + 1);
	var element = document.getElementById(submenu);
	//menuRegistry[id] = document.getElementById(submenu).parentNode;

	if (element) {
		menuRegistry[id] = element.parentNode;

		menuRegistry[id].onmouseover = function() {
			displaySubMenu(this, submenu);
		}

		menuRegistry[id].onmouseout = function() {
			hideSubMenu(this, submenu);
		}
	}
}

function displaySubMenu(menu, submenu)
{
	document.getElementById(submenu).style.display = 'block';
}

function hideSubMenu(menu, submenu)
{
	document.getElementById(submenu).style.display = 'none';
}