Write a function for a button

A command in ActionScript is called a function. A function is a script that you can write once and use repeatedly in a document to perform a certain task. You're going to write a function that makes the screen_mc movie clip appear (visible = true) when the user releases the mouse button.

1. In the Script pane of the Actions panel, click after the last line of code, press Enter or Return twice, and type //function to show animation.
2. Press Enter or Return and click Insert Target Path, along the top of the Actions panel. Select onButton_btn from the hierarchical tree, and click OK.
3. In the Script pane, type a period (.) and double-click onRelease from the list of code hints that appears.
4. In the Script pane, press the Spacebar and type the following:

   = function(){

   The line of code that you just completed should appear as follows:

   this.onButton_btn.onRelease = function(){
   

   You already know how to select objects in the Insert Target Path dialog box; you'll now enter the instance names directly into the Script pane.

5. Press Enter or Return and type the following:

   screen_mc._visible = true;

6. Press Enter or Return and type }; to specify the end of the statement.

   The function should appear as follows:

   //function to show animation
   this.onButton_btn.onRelease = function(){
     screen_mc._visible = true;
   };