function mostrar(nombreCapa){ 
document.getElementById(nombreCapa).style.visibility="visible"; 
} 
function ocultar(nombreCapa){ 
document.getElementById(nombreCapa).style.visibility="hidden"; 
} 

var gaJsHost = (("https:" == document.location.protocol) ? "https://ssl." :"http://www.");
document.write(unescape("%3Cscript src='" + gaJsHost +"google-analytics.com/ga.js' type='text/javascript'%3E%3C/script%3E"));
try
{
	var pageTracker = _gat._getTracker("UA-12601017-1");
	pageTracker._trackPageview();
}
catch(err)
{

}