>Hi
>I want to flash a label (during two second the label will change color every 1/10 second).
>How can I do it?

In addition to what Terry suggested (which is actually an attempt to help you acheive your goal), be prepared for the standard answer, "you should not do that!"

My personal feeling is that there is a time and place for it. Just don't make it look like a department store window display at Christmas time :)

Mike