# XMLHttpRequest on select index change

**URL:** <https://discuss.rubyonrails.org/t/xmlhttprequest-on-select-index-change/19427>\
**Category:** rubyonrails-talk\
**Created:** [October 18, 2007, 5:01pm UTC](https://discuss.rubyonrails.org/t/xmlhttprequest-on-select-index-change/19427 "2007-10-18T17:01:08Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Frederick\_Cheung](https://sea2.discourse-cdn.com/rubyonrails/user_avatar/discuss.rubyonrails.org/frederick_cheung/32/3901_2.png) [@Frederick\_Cheung](https://discuss.rubyonrails.org/u/Frederick_Cheung)\
**Post date:** [October 18, 2007, 5:01pm UTC](https://discuss.rubyonrails.org/t/xmlhttprequest-on-select-index-change/19427/1 "2007-10-18T17:01:08Z")

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You don't need to: remote\_function will do that for you. The documentation for it even use a drop down box as its example. Fred

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**Author:** ![Frederick\_Cheung](https://sea2.discourse-cdn.com/rubyonrails/user_avatar/discuss.rubyonrails.org/frederick_cheung/32/3901_2.png) [@Frederick\_Cheung](https://discuss.rubyonrails.org/u/Frederick_Cheung)\
**Post date:** [October 19, 2007, 8:00am UTC](https://discuss.rubyonrails.org/t/xmlhttprequest-on-select-index-change/19427/2 "2007-10-19T08:00:57Z")

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I think that the :submit parameter can be used for this in a slightly more elegant way.

Fred