     [Inspectable(category="General")]
 
     /**
+     *  If false, i.e. "fixed column width" is specified, the width of
+     *  each item is set to the value of <code>columnWidth</code>.
+     * 
+     *  If the <code>columnWidth</code> property wasn't explicitly set,
+     *  then it's initialized with the <code>measuredWidth</code> of
+     *  the first item.
+     * 
+     *  The items' <code>includeInLayout</code>, 
+     *  <code>measuredWidth</code>, <code>minWidth</code>,
+     *  and <code>percentWidth</code> properties are ignored when 
+     *  <code>variableColumnWidth</code> is false.
+     * 
      *  @default true
      */
     public function get variableColumnWidth():Boolean

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

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