<div class="container presentations">
  <h1>Scheduler</h1>
  <div class="row-fluid">
    <div class="span12">
      <table class="table table-striped">
        <tr>
          <th>Presentation Name</th>
          <% @presentations.each do |presentation| %>
              <th><%= presentation.title %> </th>
          <% end %>
        </tr>
        <% @presentations.each do |presentation1| %>
            <tr>
              <td><%= presentation1.title %></td>
              <% @presentations.each do |presentation2| %>
                  <% if presentation1 == presentation2 %>
                      <td>&nbsp;</td>
                  <% else %>
                    <td><%= (presentation1.users & presentation2.users).collect{|u| u.short_name} %></td>
                  <% end %>
              <% end %>
            </tr>
        <% end %>
      </table>
    </div>
  </div>
</div>
<div class="container presentations">
  <h1>Scheduler</h1>
  <div class="row-fluid">
    <div class="span12">
      <table class="table table-striped">
        <tr>
          <th>Presentation Name</th>
          <% @presentations.each do |presentation| %>
              <th><%= presentation.title %> </th>
          <% end %>
        </tr>
        <% @presentations.each do |presentation1| %>
            <tr>
              <td><%= presentation1.title %></td>
              <% @presentations.each do |presentation2| %>
                  <% if presentation1 == presentation2 %>
                      <td>&nbsp;</td>
                  <% else %>
                    <td title="<%= presentation1.title %> & <%= presentation2.title %>"><%= (presentation1.users & presentation2.users).collect{|u| u.short_name} %></td>
                  <% end %>
              <% end %>
            </tr>
        <% end %>
      </table>
    </div>
  </div>
</div>
Add hover to improve readability
Add hover to improve readability
