# Dynamic select menu doesn't work for 'form\_tag'

**URL:** <https://www.ruby-forum.com/t/dynamic-select-menu-doesnt-work-for-form-tag/182077>\
**Category:** Rails\
**Created:** [January 22, 2010, 10:55am UTC](https://www.ruby-forum.com/t/dynamic-select-menu-doesnt-work-for-form-tag/182077 "2010-01-22T10:55:27Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![jmanivannancse](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/8491ac/32.png) [@jmanivannancse](https://www.ruby-forum.com/u/jmanivannancse)\
**Post date:** [January 22, 2010, 10:55am UTC](https://www.ruby-forum.com/t/dynamic-select-menu-doesnt-work-for-form-tag/182077/1 "2010-01-22T10:55:27Z")

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Hi everyone,

```
  I have tried with the dynamic menu using

```

"[#88 Dynamic Select Menus - RailsCasts](http://railscasts.com/episodes/88-dynamic-select-menus) " site.  
i implemented and it was working fine for ‘form\_for’ tag.  
But i need to do the same function with ‘form\_tag’ as like as,  
\<% javascript ‘dynamic\_states’ %\>  
\<%form\_tag do%\>

Country: \<%= collection\_select :id, Country.find(:all), :id, :name, :prompt =\> "Select a Country" %\>

\<%end%\>

child records doesn’t changed to its corresponding parent when i use  
‘form\_tag’…  
i want to do with ‘form\_tag’  
Please help me…