function irA(menu){
	if (menu.options[menu.selectedIndex].value != ""){		
		//window.open(menu.options[menu.selectedIndex].value,'ventana')
		window.location.href = menu.options[menu.selectedIndex].value;
	}
}

function irA2(menu){
	if (menu.options[menu.selectedIndex].value != ""){		
		window.open(menu.options[menu.selectedIndex].value,'ventana');
	}
}