block method output is generating twice

write a block method to print a list

def column (&block)   if block_given?     content_tag(:li, capture(self, &block))   else     content_tag(:li, "")   end end

and using it as

<%= data_list_for @leads, [" :10", "Age:30", "Contact:140", "Phone: 140", "Email:180", "Company:100", ""] do |l| %>     <%= l.column { |c| link_to "&nbsp;".html_safe, "leads/details/ #{c.object.id}", :class=>:plus, :remote=>true } %>     <%= l.column { |c| c.object.age } %>     <%= l.column { |c| c.object.contact.complete_name } %>     <%= l.column { |c| c.object.contact.phones.blank? ? "-" : c.object.contact.phones.first.phone_number } %>     <%= l.column { |c| c.object.contact.emails.blank? ? "-" : c.object.contact.emails.first.email } %>     <%= l.column { |c| c.object.company.title } %>     <%= l.column do |c| %>         <%= options_menu do |m| %>             <%= m.item link_to 'Show', lead_path(c.object) %>             <%= m.item link_to 'Edit', edit_lead_path(c.object) %>             <%= m.item link_to 'New Note', "leads/#{c.object.id}/notes/ new", :class=>"display-newxdoc", :id=>c.object.id %>             <%= m.item link_to 'Create Opportunity', new_lead_opportunity_path(c.object) %>         <% end %>     <% end %> <% end %>

Every thing is working fine. But the only problem is that options_menu is generating twice. Means two option_menus are there. I traced out one menu is from l.column command because it has proper formating of column, other is generating by its on block in the view, How can i stop it for doing twice?