 		private function createContentPaneAndScrollbarsIfNeeded():Boolean
 		{
 			var bounds:Rectangle;
-			var changed:Boolean;
+			var changed:Boolean = false;
 			
 			// No mask is needed if clipping isn't active
 			if (_clipContent)

				// edge of the rightmost child.  Also get the new scrollable height.
				bounds = getScrollableRect();
				
				// Create or destroy scrollbars if necessary, and update the
				// properties of the scrollbars.
				changed = createScrollbarsIfNeeded(bounds);
				
				if (border)
					updateBackgroundImageRect();
				

			return bounds;
		}
		
		
		/**
		 *  @private
