function ES_validar(ES_form) { // by E-S
	if (ES_form.nombre.value=="") {
		alert("Por favor complete su nombre");
		ES_form.nombre.focus(); return (false);
	}
	
	if (ES_form.apellido.value=="") {
		alert("Por favor complete su apellido");
		ES_form.apellido.focus(); return false
	}
	
	if (ES_form.email.value=="") {
		alert("Por favor complete su email");
		ES_form.email.focus(); return false
	}
	
	if (ES_form.email.value!="") {
		if (ES_form.email.value.indexOf("@")==-1 || ES_form.email.value.indexOf(".")==-1 || ES_form.email.value.indexOf(" ")!=-1 || ES_form.email.value.length<6)
		{
			alert("La dirección de e-mail es incorrecta");
			ES_form.email.focus(); return false
		}
	}
}

function ES_validarNews(ES_form,Lng) { // by E-S
	if (ES_form.newsletter_name.value=="" || ES_form.newsletter_name.value=="name" || ES_form.newsletter_name.value=="nombre" || ES_form.newsletter_name.value=="Name" || ES_form.newsletter_name.value=="Nombre") {
		if (Lng == 'ES')
			alert("Por favor complete su nombre");
		else
			alert("Please fill your name");
		ES_form.newsletter_name.focus(); return (false);
	}
	if (ES_form.newsletter_email.value=="") {
		if (Lng == 'ES')
			alert("Por favor complete su email");
		else
			alert("Please fill your email address");
		ES_form.newsletter_email.focus(); return false
	}
	
	if (ES_form.newsletter_email.value!="") {
		if (ES_form.newsletter_email.value.indexOf("@")==-1 || ES_form.newsletter_email.value.indexOf(".")==-1 || ES_form.newsletter_email.value.indexOf(" ")!=-1 || ES_form.newsletter_email.value.length<6)
		{
			if (Lng == 'ES')
				alert("El e-mail ingresado es incorrecto");
			else
				alert("Please verify your email address");
			ES_form.newsletter_email.focus(); return false
		}
	}
}