(new Image()).src = 'images/menu/m_home_arb.gif';
(new Image()).src = 'images/menu/m_hist_arb.gif';
(new Image()).src = 'images/menu/m_care_arb.gif';
(new Image()).src = 'images/menu/m_prod_arb.gif';
(new Image()).src = 'images/menu/m_comm_arb.gif';
(new Image()).src = 'images/menu/m_cont_arb.gif';
var Menu = {
	initialize: function() {
		var page = $$('body')[0].readAttribute('id');
		var links = $('nav_'+page).firstDescendant();
		var title = links.readAttribute('title');
		var image = new Element('img', {'src':'images/menu/m_'+page+'_arb.gif', 'title':title, 'alt':title});
		links.replace(image);
		Event.observe($('nav_prod'), 'mouseover', Menu.show);
		Event.observe($('subnav'), 'mouseout', Menu.hide);
		var menulinks = $$('#menu li');
		for (var i = 0; i < menulinks.size(); i++) {
			if (menulinks[i].readAttribute('id') == "nav_prod" || menulinks[i].readAttribute('id') == "subnav") {
				continue;
			}
			Event.observe(menulinks[i], 'mouseover', Menu.hide);
		}
	},
	show: function(event) {
		this.writeAttribute('class', 'over');
	},
	hide: function(event) {
		$('nav_prod').writeAttribute('class', '');
	}
};
Event.observe(window, 'load', Menu.initialize);