# Easy MC name question

**URL:** <https://forum.kirupa.com/t/easy-mc-name-question/106455>\
**Category:** Uncategorized\
**Created:** [April 6, 2004, 1:40am UTC](https://forum.kirupa.com/t/easy-mc-name-question/106455 "2004-04-06T01:40:20Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![kennyb](https://avatars.discourse-cdn.com/v4/letter/k/c68b51/32.png) [@kennyb](https://forum.kirupa.com/u/kennyb)\
**Post date:** [April 6, 2004, 1:40am UTC](https://forum.kirupa.com/t/easy-mc-name-question/106455/1 "2004-04-06T01:40:20Z")

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I’ve been away from Flash for a bit, and I’ve forgotten a few things. I’m trying to affect a random movie clip that’s on stage. How can I use the random number I generate to select my mc’s?

For example, here’s what will not work (but you’ll get what I’m trying to do):

\_root.mcHolder.mc+“p”.\_alpha=newAlpha;

So, p=the random number. I have mc’s named mc1, mc2, mc3 and mc4, etc.

Thanks.

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**Author:** ![system](https://canada1.discourse-cdn.com/flex011/uploads/kirupa/original/3X/6/2/621e5c11736f46532526e61be85940af4230f3e5.png) [@system](https://forum.kirupa.com/u/system)\
**Post date:** [April 6, 2004, 8:02am UTC](https://forum.kirupa.com/t/easy-mc-name-question/106455/2 "2004-04-06T08:02:32Z")

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Try this:

```auto

_root.mcHolder["mc"+(1+Math.floor(Math.random()*4))]._alpha = newAlpha;

```

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**Author:** ![system](https://canada1.discourse-cdn.com/flex011/uploads/kirupa/original/3X/6/2/621e5c11736f46532526e61be85940af4230f3e5.png) [@system](https://forum.kirupa.com/u/system)\
**Post date:** [April 6, 2004, 8:48am UTC](https://forum.kirupa.com/t/easy-mc-name-question/106455/3 "2004-04-06T08:48:42Z")

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And see [http://www.kirupaforum.com/forums/showthread.php?t=12082#post85182](http://www.kirupaforum.com/forums/showthread.php?t=12082#post85182) for a nice explanation by senocular. 😛

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**Author:** ![system](https://canada1.discourse-cdn.com/flex011/uploads/kirupa/original/3X/6/2/621e5c11736f46532526e61be85940af4230f3e5.png) [@system](https://forum.kirupa.com/u/system)\
**Post date:** [April 6, 2004, 1:33pm UTC](https://forum.kirupa.com/t/easy-mc-name-question/106455/4 "2004-04-06T13:33:59Z")

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Thanks all. Very nice responses.