Generates per_page links for will_paginate

gistfile1.rbx

def per_page_links(collection, options={})
  unless collection.empty?
    separator = options[:seperator] || ' '
    css_class = options[:class] || 'per_page_links'
    param     = options[:param] || :per_page
    per_page  = collection.first.class.per_page
    options   = [per_page/2, per_page, per_page*2]
    value     = params[param] || per_page.to_s
    link      = lambda {|p| url_for(params.merge({param => p}))}
    item      = lambda {|p, current_value| current_value == p.to_s ? content_tag(:span, p, :class => 'current') : link_to(p, link.call(p)) }
    content_tag(:div, options.map {|p| item.call(p, value)}.join(separator), :class => css_class)
  end
end