Buttons are a special type of symbol that contain 4 frames: Up, Over, Down and Hit. These frames symbolize varied states for the button. To create a simple button follows the steps:
1. To create a button, select an object on the stage.
2. Select Modify > Convert To Symbol or 'press [F8] .
3. Select Button and click OK.
4. Now right-elick on the symbol and choose edit.
5. Notice Flash shifts to symbol-editing mode where the Timeline header changes to show four frames Up, Over, Down and Hit as we have discussed above. The first frame i.e. Up is a blank keyframe.
6. Select the second frame i.e. the Over State and go to Insert > Keyframe. Here you can change the properties as per your choice. This will enable the button to get a new look when the mouse cursor will be placed above the button.
7. New change the button properties for the Over State by the same process.
8. Repeat the same process for Down State also
9. Give a specific Hit Area
10. Now come to the initial flash screen by clicking the scene 1 tab.