Forward and Back Button Addtion

I added an OnClick Forward and Back button to my WebHelp. Does anyone know if this creates a problem?

1. From Projects tab, Skins, right click the appropriate skin.
2. On the Toolbar tab, click + to add a custom button.
3. Enter Forward or Back as the button name.
4. Select a graphic, if desired.
5. Click the Action tab.
6. Click JavaScript.
7. In the OnClick text entry box, for forward, enter:
window.history.go(1)
or for back, enter:
window.history.go(-1)
8. Generate help.
9. The button should appear in the banner area. The button will move back and forward to files contained in history.