/**
  * Return the md5 Hash of the path of this object.
  * @param I2CE_MagicDataNode $node
  * @param string $childPath 
  * @param boolean $show_top defaults to true if we are to show the parent
  * @return string
  */
 public function getChildPath($node, $childPath, $show_top = true)
 {
     if ($show_top) {
         if ($node instanceof I2CE_MagicData) {
             return $node->getPath(true) . $node->pathDivider() . $childPath;
         } else {
             return $node->getPath(true) . '/' . $childPath;
         }
     } else {
         if ($node instanceof I2CE_MagicData) {
             return '/' . $childPath;
         } else {
             return $node->getPath(false) . '/' . $childPath;
         }
     }
 }