For the first navigational assignment, you will be using 4 different scripts. Two of these will be Frame Scripts and two will be Sprite Scripts.

Frame Scripts for Assignment #2:

Hold Script
on exitFrame
go to the frame
end

Loop Script
on exitFrame
go [frame number]
end

Sprite Scripts for Assignment #2:

Navigational Script A
on mouseUp
go [frame number]
end

Navigational Script B
on mouseUp
go [different frame number]
end

About Lingo Scripts
Scripts are created by a Lingo "author" (i.e., yourself) to implement interactivity and animation in a Director movie. Scripts run in the background and are generally not seen by the user. They enable such functionality as navigation, audio and visual effects, data input and output, out-of-the-box interactions, etc.

Event Handlers
A handler uses specific scripting language to describe the event that will trigger an action. Some examples of typical handlers are:
on exitFrame This handler refers to the "event" of the playback head leaving a frame
on mouseUp This handler referes to the "event" of the release of the mouse click

Commands
A command is triggered by an event handler. Some examples of commands are:
go to the frame This causes the playback head to hold on the current frame
go [frame number] This script is used to navigate to another part of the Score (when used as a Sprite Script), or to create a loop (when used as a Frame Script).Script Types and Locations

As a Lingo author, you can create 3 different types of Lingo scripts in a Director movie: the Frame Script, the Sprite Script or the Movie Script. All scripts are stored in the Script Window. Each different type of script is located in a different place once it is used in a Director movie.
The Frame Script affects only the Frame in which it is placed in the Director Score. It is located in the Script Channel near the top of the score. To create a Frame Script, double click on the Frame in the Script Channel so that the Script Window opens. Type your script into the Script Window. It will automatically be attached to the selected frame.
The Sprite Script will be dragged onto a specific sprite, and will be associated only with that sprite. One of the most common functions of a sprite script is to make a sprite into a navigational "button." To create a sprite script, select the sprite in the Score, go to the pulldown Behavior menu on the top left of the Score, next to the Frame channel and select "New Behavior." The Script Window will open; type your script. It will automatically be attached to that sprite.
Alternatively, select the sprite and go to Modify>Sprite>Script, to open the Script Window.
The Movie Script will remain in the Script Window. The functionality of a movie script will affect the entire Director movie. To create a new Movie Script, hold down Command + Shift and press U.