Chained collection_selects RJS

Hi there I´m trying to get working a bunch of chained collection selects

so it is like this
from 2 collection selects I replace 2 divs (just text) and generate 2
more collections selects depeneding on the results from the first 2,
but then I need to generate to more collection selects, but it fails,
since when the page is loaded the @collection to generete the
collection_select is not net created (it comes from the past 2)
collection selects, I´m kind of lost of how to solve this problem.
does anyone have a tip that could I borrow

I´m using rjs to update multiple divs and I´ve tried
render :update do |page|
page.replace_html ‘apDiv5’, @nfc[0].name
page.replace_html ‘apDiv9’, @nfc[1].name
page.replace ‘apDiv11’, :partial => ‘ter’, :collection => @nfc

but apDiv11 does not work (i have tried replace and replace_html)

the _ter.html.erb has
<%= f.collection_select :key_word … %>

also I have tried
page.replace_html ‘apDiv10’,
’ 1

and it works but there has to be a better solution, and it doesnt
solve me the problem of the later collection not existing when the
page is loaded

thanks in advance

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