var MenuHorizontal = Class.create({
  initialize: function(div_menu) 
  {
	this.divMenu = div_menu;
	this.ulMenu = new Element('ul', {});

	this.divMenu.appendChild(this.ulMenu);
  },
  agregar_link: function(link, img_normal, img_hover)
  {
	var li = new Element('li',{});
	var a = new Element('a',{'href':link})
	var img = new Element('img', {'src':img_normal, 'border':0});
	
	Event.observe(img,'mouseover', function () { img.src = img_hover;});
	Event.observe(img,'mouseout', function () { img.src = img_normal;});
	
	a.appendChild(img);
	li.appendChild(a);
	this.ulMenu.appendChild(li);
  }
});