Add navigation buttons
    Add back, forward, and refresh buttons for the 
Web browser
 object.Prerequisites
- To add navigation buttons
 - Create threeButtonobjects.
 - Set theTextproperties of the buttons to:
- Back
 - Forward
 - Refresh
 
 - Select theBackbutton, and inEvents, next toMouseClickEvent, selectand select the
NavigateBackmethod of theWeb Browserobject. - Select theForwardbutton, and inEvents, next toMouseClickEvent, selectand select the
NavigateNextmethod of theWeb Browserobject. - Select theRefreshbutton, and inEvents, next toMouseClickEvent, selectand select the
Refreshmethod of theWeb Browserobject. 
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