send this keyword along with page.call in rails

i am having

      <%= link_to_function "Show additional details",:id => 'user_', :class =>开发者_运维问答; 'underline' do |page|
     page.call 'toggle_detail','additional'
    end -%> 

how to send this keyword along with the page.call here. pls give suggestions

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Try page.call 'foobar',page.literal('this')