Random Numbers

[COLOR=black][FONT=Verdana]Hi,[/FONT][/COLOR]
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[COLOR=black][FONT=Verdana]Is it possible to generate random number like:[/FONT][/COLOR]
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[COLOR=black][FONT=Verdana]gotoAndPlay(Math.ceil(Math.random() *4));[/FONT][/COLOR]
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[COLOR=black][FONT=Verdana]BUT instead of a range have them like … 40 OR 55 OR 78. Not 0-10 (range)[/FONT][/COLOR]
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[COLOR=black][FONT=Verdana]I’ve got movie clips on certain frames on my main time line, what I would like is to randomly play these.[/FONT][/COLOR]
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[COLOR=black][FONT=Verdana]Many thanks[/FONT][/COLOR]