/**
  * Set the step passed in as the current step.
  *
  * @param MultiFormStep $step A subclass of MultiFormStep
  * @return boolean The return value of write()
  */
 protected function setCurrentStep($step)
 {
     $this->session->CurrentStepID = $step->ID;
     $step->setForm($this);
     return $this->session->write();
 }