      *  "anchorTargetName:value" e.g. "row1:10".
      *
      *  @default null
+     *  
+     *  @langversion 3.0
+     *  @playerversion Flash 9
+     *  @playerversion AIR 1.1
+     *  @productversion Flex 3
      */
     function get bottom():Object;
     function set bottom(value:Object):void;

     *  "constraintColumnId:value" e.g. "row1:10".
     *
     *  @default null
     */
    function get verticalCenter():Object;
    function set verticalCenter(value:Object):void;

     *  @see #setLayoutMatrix3D
     *  @see mx.core.UIComponent#offsets
     *  @see mx.graphics.baseClasses.GraphicElement#offsets
     *  
     *  @langversion 3.0
     *  @playerversion Flash 9
     *  @playerversion AIR 1.1
     *  @productversion Flex 3
     */
    function setLayoutMatrix(m:Matrix, triggerLayout:Boolean):void;

