Rails - Jan 2006 - Get the options in a multiple select tag

Hi, guys,

Is there a method in rails to get the options of a select tag of a form, 
in the controller?

Specifically, I have two multiple select tags in a form, and by clicking 
a button it will dynamically update the second by copying selected 
options in the first. I want to get the "final" option list of the 
second select tag in the form''s onsubmit method which I wrote as a 
method in the controller.

I have searched for quite a while but still get no idea. Can anyone here 
give me
some hints?  Thanks much in advance ...

--
B.Y.



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