<%= current_page.number %> (<%= current_page.first_item %><%
if (current_page.first_item < current_page.last_item) # if more than 1 trace on page
%>-<%= current_page.last_item %><%
end %>
<%= current_page.number %> (<%= current_page.first_item %><%
if (current_page.first_item < current_page.last_item) # if more than 1 trace on page
%>-<%= current_page.last_item %><%
end %>