// JavaScript Document
function subnav(){
	//menus
	var menus = $('nav').getElements('a[id^=nav_]');
	//submenus
	var smenus = $$('.submenu');
	smenus.each(function(sm, i){
		sm.setStyles({'visibility':'hidden', 'height':'94px', 'position':'absolute', 'top':'0', 'z-index':'111'});
	});
	//último
	smenus.getLast().setStyles({'margin-left':'115px', 'width':'300px'});
	
	//acciones
	menus.each(function(m, i){
		m.addEvent('mouseover', function(){
			m.setStyles({'background-position':'0 -46px'});														 
			smenus[i].setStyles({'visibility':'visible'});
			/*menu action*/
			smenus[i].addEvent('mouseover', function(){
				smenus[i].setStyles({'visibility':'visible'});
				m.setStyles({'background-position':'0 -46px'});
			});
			smenus[i].addEvent('mouseout', function(){
				smenus[i].setStyles({'visibility':'hidden'});
				m.setStyles({'background-position':'0 0'});
			});
		});
		m.addEvent('mouseout', function(){
			m.setStyles({'background-position':'0 0'});
			smenus[i].setStyles({'visibility':'hidden'});
		});
	});
	
	//enlace externo
	var enlaces = $$('a');
	enlaces.each(function(enlace, i){
		if(enlace.getProperty('rel') == "external"){
			enlace.setProperty('target', '_blank');
		}
	});
}

window.addEvent('domready', function(){
	subnav();
});