     //  columnWidth
     //----------------------------------
     
-    /**
-     *  @private
-     */
     private var _columnWidth:Number = 20;
-    
-    /**
-     *  @private
-     */
-    private var columnWidthChanged:Boolean = false;
 
     [Inspectable(category="General")]
 
     /**
-     *  The width of the columns in pixels.
-     *  Unless the <code>variableColumnWidth</code> property is
-     *  <code>true</code>, all columns are the same width.  
+     *  Specifies the width of the columns if <code>variableColumnWidth</code>
+     *  is false.
+     *  
+     *  @default 20
      */
     public function get columnWidth():Number
     {

    //  gap
    //----------------------------------

    /**
     *  @private
     */
    private var _gap:int = 6;
    
    /**
     *  @private
     */
    private var gapChanged:Boolean = false;

    [Inspectable(category="General")]


 	   	var layoutTarget:Group = target;
    	if (layoutTarget != null) 
    	{
        	layoutTarget.invalidateSize();
            layoutTarget.invalidateDisplayList();
    	}
