# Javascript+partial form problem

**URL:** <https://www.ruby-forum.com/t/javascript-partial-form-problem/146847>\
**Category:** Rails\
**Created:** [August 26, 2008, 7:25am UTC](https://www.ruby-forum.com/t/javascript-partial-form-problem/146847 "2008-08-26T07:25:09Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![prionko](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/p/5f9b8f/32.png) [@prionko](https://www.ruby-forum.com/u/prionko)\
**Post date:** [August 26, 2008, 7:25am UTC](https://www.ruby-forum.com/t/javascript-partial-form-problem/146847/1 "2008-08-26T07:25:09Z")

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Hi,

Can anybody tell me how to pass a value to a javascript function from a  
partial form. I have done client side validation from rhtml pages having  
forms in the following manner :

\<%= f.text\_field :first\_name, :onChange =\> ("return checkName(this.form.first\_name.value');") %\>

But since in a partial form there is not form tag, how can i pass the  
value to a javascript function?

-Thanks  
Saurav

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<div class="post-metadata">

**Author:** ![prionko](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/p/5f9b8f/32.png) [@prionko](https://www.ruby-forum.com/u/prionko)\
**Post date:** [August 26, 2008, 10:41am UTC](https://www.ruby-forum.com/t/javascript-partial-form-problem/146847/2 "2008-08-26T10:41:06Z")

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On Aug 26, 6:25 am, Saurav C. \<rails-mailing-l…@andreas-  
[s.net](http://s.net)\> wrote:

> value to a javascript function?  
> Surely if you’ve got f (which I assume is a form builder) then this  
> partial will always be rendered inside a form? It doesn’t matter if  
> the form is inside the partial or not, the browser will never know.  
> However, in your onChange ‘this’ should be the text field so  
> this.value should work.

Fred