# To re-enable function after set to null

**URL:** <https://forum.kirupa.com/t/to-re-enable-function-after-set-to-null/292142>\
**Category:** Uncategorized\
**Created:** [July 10, 2009, 3:49pm UTC](https://forum.kirupa.com/t/to-re-enable-function-after-set-to-null/292142 "2009-07-10T15:49:12Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![199cm](https://avatars.discourse-cdn.com/v4/letter/1/a5b964/32.png) [@199cm](https://forum.kirupa.com/u/199cm)\
**Post date:** [July 10, 2009, 3:49pm UTC](https://forum.kirupa.com/t/to-re-enable-function-after-set-to-null/292142/1 "2009-07-10T15:49:12Z")

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Hallo everybody!

Following problem - movie clips have defined functions for rollOut, rollOver and Release. On Release rollover function is set to null (on.Rollover {bla, bla, bla movieclip.onRollOut = null}.

Is there a way to re-enable this function?

Thanks in advance!