flash (macromedia):

From the component window, drag the button component to your work area and then
you can customize the button component according to your need.

You can also write actionscript code under that button, by selecting the
button first and then press F9. The action pane will come and there you can
write the code under on click event.

Hope this will help you.

Thanks

Sankalan
(www.mindfiresolutions.com)