anchor.diff:      <tr>
         <td>
           <%- if item.item_identifier? -%>
  -          <%= link_to item.item_identifier, item -%>
  +          <%= link_to(item.item_identifier, item, :id => "item_identifier_#{item.item_identifier}") -%>
           <%- else -%>
             (<%= link_to t('item.no_number'), item -%>)
           <%- end -%>
         </td>
         <td>
  -        <%= link_to(item.shelf.library.display_name.localize, item.shelf.library, :id => item.shelf.library.name) %>
  +        <%= link_to(item.shelf.library.display_name.localize, item.shelf.library, :id => "library_#{item.shelf.library.name}") %>
         </td>
         <td>
  -        <%= link_to(item.shelf_display_name.localize, item.shelf, :id => item.shelf.name)-%>
  +        <%= link_to(item.shelf_display_name.localize, item.shelf, :id => "shelf_#{item.shelf.name})-%>
           <%= render 'items/shelf_picture', :item => item -%>
         </td>
         <td>
  
positive.code:     <% if can? :update, item %>
        <script>
          $(document).ready(function(){
            $('a#<%= item.shelf.library.name %>').qtip({
              position: {
                my: 'bottom left',
                at: 'top center'
  
negative.code:               fixed: true
              }
            });
            $('a#shelf_<%= item.shelf.name %>').qtip({
              position: {
                my: 'bottom left',
                at: 'top center'
  