Toggle blind on multiple items

I have a faq where the answers are blinded down when the question is
clicked.
What I want to do is have a link that either blinds up or down all
the answer-elements on the page. When the link is clicked, it should
switch between the text “Show all” / “Hide all” and the
link_to_remote should also change. I figure I´ve made a mess out of it
as it is. Can I somehow make all this in action or something also?

How should I do this?

in my controller:

def display_all
render(:update) do |page|
page.select(‘div.answer’).each do |answer|
answer.visual_effect(:blind_down, :duration => 0.25, :fps =>
100)
end

   page.replace_html :toggle_all, link_to_remote("Hide all",

{:url => {:action => :hide_all}}, :id => “toggle_all”)
end
end

def hide_all
render(:update) do |page|
page.select(‘div.answer’).each do |answer|
answer.visual_effect(:blind_up, :duration => 0.25, :fps =>
100)
end

   page.replace_html :toggle_all, link_to_remote("Show all",

{:url => {:action => :display_all}}, :id => “toggle_all”)
end
end

in my template:

<%= link_to_remote(“Show all”,
{:url => {:action => :display_all}}, :id
=> “toggle_all”)%>

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