function initPage()
{
	var nav = document.getElementById("menu");
	if (nav)
	{
		var nodes = nav.getElementsByTagName("li");
		for (var i = 0; i < nodes.length; i++)
		{
			if (nodes[i].parentNode.id == "menu")
			{
				nodes[i].onmouseover = function () 
				{
					if (this.className.indexOf("hover") == -1)
					{
						this.className += " hover";
					}
				}
				nodes[i].onmouseout = function ()
				{
					this.className = this.className.replace(" hover", "");
				}
			}
		}
	}
}
if (window.attachEvent && !window.opera)
	window.attachEvent("onload", initPage);
	

//  



/*desplegable*/
  function mostrarDesplegable (divtxtDesplegable){
	 
		
		if ($(divtxtDesplegable).hasClassName('novisto')){
			$$('div.visto').invoke('removeClassName', 'visto').invoke('addClassName','novisto');
			$(divtxtDesplegable).addClassName('visto');
			$(divtxtDesplegable).removeClassName('novisto');
		}else{
			$(divtxtDesplegable).addClassName('novisto');
			$(divtxtDesplegable).removeClassName('visto');
		}
	
}