and then double-click the nested symbol. 6. Creating Interactive Files Let your viewers in on the action with buttons, menus, and other interactive elements that encourage them to explore your site. Symbols and ActionScript work together to create consistent, effective user interfaces. Lesson Overview In this lesson, you'll learn how to do the following: * Manipulate gradients * Create buttons * Create animated rollover states * Duplicate buttons * Use a single symbol for multiple images * Edit nested symbols * Create and use frame labels * Name instances for use in ActionScript This lesson will take approximately 90 minutes to complete. If needed, remove the previous lesson folder from your hard drive, and copy the Lesson06 folder onto it. Getting Started To begin, view the photography portfolio page that you'll create as you learn to make buttons interactive in Flash. 1. Double-click the 06End.swf file in the Lesson06/06End folder to play the animation. The project is an interactive web page for a photographer. After the initial movie plays, viewers can click a button to see an enlarged version of a photo. In this lesson, you'll create a background and add interactive buttons for the photos. ActionScript is already included in the project file, but you'll set up the file so that the ActionScript works. 2. Close the 06End.swf file. 3. Double-click the 06Start.fla file in the Lesson06/06Start folder to open the initial project file in Flash. The file includes seven layers, and several assets are in the library. Frame 10 of the Actions layer already contains ActionScript. 4. Choose File > Save As. Name the file 06_workingcopy.fla, and save it in the 06Start folder. Saving a working copy ensures that the original start file will be available if you wish to start over. About Interactive Files Interactive files are files that change based on the viewer's actions. For example, when the viewer clicks a button, a larger version of an image is displayed. Or when the viewer clicks a menu item, a different page appears on the screen. Interactivity can be complex, requiring multiple calculations, or it can be as simple as changing a button's color. In Flash, you use ActionScript to achieve most interactivity. In this project, ActionScript loads the initial movie, as well as the appropriate photo when the viewer clicks a button. The ActionScript is already included in this file, so you just need to create the buttons, active selection marker, and other pieces that the ActionScript calls. You'll learn more about ActionScript 3.0 in Lesson 7.   Designing a Layout The featured image won't fill the entire screen. You'll create an interesting background fill, simple frames for the loaded images and the background, and a title to identify the page.