# How do you do dynamically show and hide block elements in HTML? \[renamed\]

**URL:** <https://forum.kirupa.com/t/how-do-you-do-dynamically-show-and-hide-block-elements-in-html-renamed/131878>\
**Category:** Uncategorized\
**Created:** [December 20, 2004, 9:11pm UTC](https://forum.kirupa.com/t/how-do-you-do-dynamically-show-and-hide-block-elements-in-html-renamed/131878 "2004-12-20T21:11:43Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Sammo](https://yyz1.discourse-cdn.com/flex011/user_avatar/forum.kirupa.com/sammo/32/779_2.png) [@Sammo](https://forum.kirupa.com/u/Sammo)\
**Post date:** [December 20, 2004, 9:11pm UTC](https://forum.kirupa.com/t/how-do-you-do-dynamically-show-and-hide-block-elements-in-html-renamed/131878/1 "2004-12-20T21:11:43Z")

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on kirupaforum’s homepage. The black arrows at the right hand side of a forum title. You click it and it hides data (and changes the images) clicking it again resets it.

How do you do that…I’m guessing in javascript?