Specifications

220 ActionScript: Use Script Assist mode
You now need to add the goto() function, the action that occurs when the
About button is clicked.
1. Using the Actions toolbox or the Add button on the Actions panel
toolbox, select Global Functions > Timeline Control and insert the
goto function.
2. In the Script Assist pane, select the Go To and Stop option.
3. Set the Type to Frame Label by selecting it from the Type pop-up
menu.
4. In the Frame text box, enter about.
The completed Timeline script
Repeat this process for the Products and Contacts buttons. In each case,
when the buttons are clicked, you want to display the related frames on the
Timeline; therefore, set the frame target of the
gotoAndStop() function to
the Products and Contacts frames as you did for the About button.