<!--
/*function formulario_1(theForm)
{ 
var submit=false;

  if ((theForm.nombre.value == "")||(theForm.nombre.value == "Nombre"))
  {
  alert("Introduzca un nombre.");
  theForm.Nombre.focus();
  return (false);
  }
  
  if ((theForm.email.value == "")||(theForm.nombre.value == "E-mail"))
  {
  alert("Introduzca un e-mail."); 
  theForm.email.focus();
  var email = 0;
  }
  
    if ((theForm.tfn.value == "")||(theForm.tfn.value == "Tel$eacute;fono"))
  {
  alert("Introduzca un e-mail."); 
  theForm.email.focus();
  var tfn = 0;
  }
 
     if ((email == 0)&&(tfn == 0))
  {
  alert("Introduzca e-mail o tel$eacute;fono de contacto."); 
  theForm.email.focus();
  return (false);
  }
 
  if (theForm.opcion.value == "")
  {
  alert("Introduzca una opcion.");
  theForm.opcion.focus();
  return (false);
  }
  
  if (theForm.horario.value == "")
  {
  alert("Introduzca un horario."); 
  theForm.horario.focus();
  return (false);
  }
  
  if (theForm.email.value.length < 5)
  {
  alert("Corrija su e-mail");
  theForm.email.focus();
  return (false);
  }

  return (true);
}*/
//-->