var Site = {

  beforeStart : function() {
	
  },
  
  start: function(){
      	Site.loadMenuRollOver();
        Site.prepareExternalLinks();
	},

	loadMenuRollOver : function() {
	  var menu = $$('#menu_principal ul li');

	  menu.each(function(el, i){
			el.addEvent('mouseover', function() {
				el.addClass("over");
  			});
			el.addEvent('mouseout', function() {
				el.removeClass("over");
  			});
      });
	},
	
	show : function(quina) {
		if ($(quina)) $(quina).setStyle('display', 'block');
	},
	
	hide : function(quina) {
		if ($(quina)) $(quina).setStyle('display', 'none');
	},

	  prepareExternalLinks : function() {
	    var linkList = $$("a");
	    linkList.each(function(el) {
	      if (el.getProperty('rel')=="external") el.target = "_blank";
	    }, this);
	  }


};

window.addEvent('load', function() { Site.start(); });
window.addEvent('domready', function() { Site.beforeStart(); });