      *  graphics and set it up as necessary for drawing the rest of the elements.</p>
      *
      *  <p>The element must alway redraw even if it itself has not changed
-     *  since the last time <code>validateDisplayList()</code> was called
-     *  as the parent <code>Group</code> will redraw the whole sequence
+     *  since the last time the <code>validateDisplayList()</code> method was called.
+     *  The parent <code>Group</code> will redraw the whole sequence
      *  if any of its elements need to be redrawn.</p>
      * 
-     *  <p>To ensure this method is called, notify the parent <code>Group</code>
+     *  <p>To ensure this method is called, notify the parent Group
      *  by calling its <code>invalidateGraphicElementSize()</code> method.</p>  
      * 
-     *  <p>Note that this method may be called even if this element have not
-     *  notified the parent <code>Group</code>.</p>
+     *  <p>This method might be called even if this element has not
+     *  notified the parent Group.</p>
      * 
      *  @see #displayObject
      *  @see #validateProperties

    function setSharedDisplayObject(sharedDisplayObject:DisplayObject):Boolean;
    
    /**
     *  Return true if this <code>IGraphicElement</code> is compatible and can
     *  share display objects with the previous <code>IGraphicElement</code>
     *  in the sequence.
     * 
     *  <p>Note that in certain cases the element may be passed offered the parent
     *  <code>Group</code> itself in a call to <code>setSharedDisplayObject</code>.
     *  In those cases, this method won't be called.</p>
     * 
     *  @param element The element that comes before this element in the sequence.
     *  @return Returns true when this element is compatible with the previous

    function parentChanged(parent:Group):void;

    /**
     *  Called by the parent Group to validate the properties of
     *  this element.
     * 
     *  <p>To ensure that this method is called, notify the parent Group
     *  by calling its <code>invalidateGraphicElementProperties()</code> method.</p>  
     * 
     *  <p>This method might be called even if this element has not
     *  notified the parent Group.</p>
     * 
     *  @see #validateSize
     *  @see #validateDisplayList
