How does scrollbar work in Showcase?

[sipungora]

Hi,

this code I set in Showcase.java

 //        main.draw();

        String numberStackHTML = "0";
        for (int i = 1; i < 100; i++) {
            numberStackHTML += "<br>" + i;
        }

        Canvas canvas2 = new Canvas();
        canvas2.setWidth100();
        canvas2.setHeight100();

        final HTMLPane scroller = new HTMLPane();
        scroller.setShowEdges(true);
        scroller.setEdgeSize(5);
        scroller.setCanDragReposition(true);
        scroller.setCanDragResize(true);
        scroller.setDragAppearance(DragAppearance.TARGET);
        scroller.setContents(numberStackHTML);
        scroller.setLeft(640);
        scroller.setTop(10);
        scroller.setWidth(100);
        scroller.setHeight(100);
        scroller.scrollTo(0, 0);
        canvas2.addChild(scroller);

		
        canvas2.draw();

I scroll to bottom and then I do browser refresh. And, oh wonder, after refresh it scrolls to the top. But how???

If I set exactly this code in HelloWorld example or any other examples, after refresh it remains at the bottom. It doesn't work!!! Why?

Also
1. I scroll to bottom
2. Browser refresh

It only correct works in Showce example. In another cases it remains at the bottom.

What is the secret of the Showcase?

I compare Showcase.gwt.xml and index.html with files from another projects, but they look identical.

Where should I looking for the solution?

Thanks in advance.
Best Regards.
-sipungora