# Gallery Help

**URL:** <https://forum.kirupa.com/t/gallery-help/55119>\
**Category:** Uncategorized\
**Created:** [June 21, 2004, 8:17am UTC](https://forum.kirupa.com/t/gallery-help/55119 "2004-06-21T08:17:38Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![electrify](https://avatars.discourse-cdn.com/v4/letter/e/b77776/32.png) [@electrify](https://forum.kirupa.com/u/electrify)\
**Post date:** [June 21, 2004, 8:17am UTC](https://forum.kirupa.com/t/gallery-help/55119/1 "2004-06-21T08:17:38Z")

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I’m using the Kirupa tutorial by superbeener

I’ve got a problem where my output show NaN. I’m getting that displayed when I press my buttons to go forward or back.

Please help.