function buscaFrame(sNom)
{
	var miWin = window;
	while(miWin.frames[sNom] == null && miWin != miWin.parent)
	{
		miWin = miWin.parent;
	}
	return(miWin.frames[sNom]);
}

function MostrarOpcionMenu(opcion)
{
	buscaFrame("frMenu").document.getElementById(opcion).click();
}