function validate_contact(formulario) {
	if (formulario.nombre.value=="") {alert("You must enter your Name"); formulario.nombre.focus(); return false;}
	if (formulario.apellido.value=="") {alert("You must enter your Last Name"); formulario.apellido.focus(); return false;}
	if (formulario.telefono.value=="") {alert("You must enter a phone"); formulario.telefono.focus(); return false;}
	if (formulario.email.value.indexOf('@') < 0 || formulario.email.value.indexOf('.') < 0 || formulario.email.value.indexOf(',') >= 0) { alert('There is an error in email field.'); formulario.email.focus(); return false; }
	if (formulario.pais.value=="") {alert("You must select a country"); formulario.pais.focus(); return false;}
//	if (formulario.asunto.value=="") {alert("You must enter a subject"); formulario.asunto.focus(); return false;}
	if (formulario.mensaje.value=="") {alert("You must enter a message"); formulario.mensaje.focus(); return false;}

	return true;
}