<?php

class Enumerator{
  
  var $postition;
  var $elements;

  function Enumerator(){
    $this->reset();
  }

  function setElements( &$elements ){
    $this->reset();
    $this->elements = &$elements;
  }
  
  function reset(){
    $this->position = -1;
  }

  function moveNext(){
    if ( $this->isNotLastElements() ){
      $this->position++;
      return true;
    }
    else{
      return false;
    }
  }

  function getElement(){
    return $this->elements[ $this->position ];
  }

  function isNotLastElements(){
    return $this->position < ( count( $this->elements )-1 );
  }

} // end class

?>