//var fieldRequired = Array("nombre", "email", "telefono");
//var fieldDescription = Array("Nombre y apellido", "Email", "Teléfono");
var fieldRequired = Array("email");
var fieldDescription = Array("Email");

function enviar ()
{
	if (formCheck(document.forms['desuscribite'], fieldRequired, fieldDescription))
	{
		if (! isEmail(document.forms['desuscribite'].email.value))
		{
			alert("El email no es valido.");
			return;
		}

		document.forms['desuscribite'].submit();
	}
}