<% link_to tracks_path, :title => "あしあと" do %>
  <%= theme_image_tag "track/my_menu_track.gif", :id => "my_menu_track",
      :alt => "あしあと",
      :onmouseover => "$('my_menu_track').src=#{theme_image_path('track/my_menu_track_ov.gif').to_json}",
      :onmouseout => "$('my_menu_track').src=#{theme_image_path('track/my_menu_track.gif').to_json}"
  %>
<% end %>
