Returns the vertical scroll bar for this control.
Note: BrowserApplication is derived from BaseGuiTestObject and inherits the two scrollbar methods GetHorizontalBar and GetVerticalBar. However, these two methods do not work on a BrowserApplication.
verticalBar = iScrollable.GetVerticalBar()
                  verticalBar = iScrollable.GetVerticalBar()
                  | Variable | Description | 
|---|---|
| verticalBar | VerticalScrollBar. |