 import mx.events.PropertyChangeEvent;
 import mx.events.ResizeEvent;
 
-import spark.components.supportClasses.ScrollBar;
+import spark.components.supportClasses.ScrollBarBase;
 import spark.core.IViewport;
 import spark.core.NavigationUnit;
 

        var oldStepSize:Number;
        if (viewport)
        {
            // Want to use ScrollBar's changeValueByStep() implementation to get the same
            // animated behavior for scrollbars with and without viewports.
            // For now, just change pageSize temporarily and call the superclass
            // implementation.

 *  @playerversion AIR 1.5
 *  @productversion Flex 4
 */
public class VScrollBar extends ScrollBarBase
{
    include "../core/Version.as";

