Rails - Nov 2005 - Using link_to_remote/remote_function outside of a Controller

Hello!
I have a problem that is quite anoying!

In side my Controller it is no problem to use the 
link_to_remote/remote_function function to produce html stuff to include 
in my .rhtml file. BUT if I want to do this in another object, for 
eample if I inside my controller (init_test) want to do like this:

my_dropdown->get_html

in which I want to perform the link_to_remote/remote_function function 
and then return the html it produces it fails. I get the following error 
message:

################################################################
 NoMethodError in Init_test#index

undefined method `url_for'' for #<Dropdown:0xe431a8>

RAILS_ROOT: .
Application Trace | Framework Trace | Full Trace

#{RAILS_ROOT}bla/bla/.../Ruby/lib/ruby/gems/1.8/gems/actionpack-1.10.2/lib/action_view/helpers/javascript_helper.rb:279:in
`remote_function''
#{RAILS_ROOT}/app/controllers/dropdown.rb:24:in `get_html''
#{RAILS_ROOT}/app/controllers/init_test_controller.rb:26:in `index''
#{RAILS_ROOT}/app/controllers/init_test_controller.rb:16:in `index''

......

################################################################

and the call looks like this:
################################################################
#I uses remote_function within a select_tag funtion call:
 remote_function(:update => values_id,
                         :with => "val=+value",
                         :url => {:action => :update_blocks }))

################################################################

There might be a logical explanation to this behaviour but I cant figure 
it out! Any help is appreciated!

/Rick

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