how to use :popup with remote_function

Hi All,
               Please tell me how to use a :popup with remote_function
          I have a select box and I have to show the names associated
with the item in a seperate popup when that item is selected.

my code is
VIEW:
   <%= select_tag "filled", options_for_select(@filled),
{ :onchange =>
    remote_function(
         :url => {:action => 'needstatus',:id=>need.id},
         :with => "'status='+this.value" ) } %>

CONTROLLER:

def needstatus
  if params[:status]
          render :partial => 'needstatus'
            end
  end

and I dont know where to use the :popup, i've tried using the popup in
all the places but I cant get any new window can anybody help me

Hi All,
              Please tell me how to use a :popup with remote_function
         I have a select box and I have to show the names associated
with the item in a seperate popup when that item is selected.

It doesn't soon like you need to use remote_function at all - just
have your onchange do a window.open with the appropriate url

Fred