anchor.diff:   
   <!--La tab de Admin sólo se muestra a los admin  -->
     
  -    <li><%=link_to "Admin"%></li>
  +    <li><%=link_to "Admin", edit_space_path(space)%></li>
     </ul>
   </div>
   
   
  -</li>
   
  -<li>
     <div id="search">
       <%= yield :search %>
     </div>
  -</li>
  -</ul>
  -<%end%>+<%end%>
  
positive.code:   </select>
  </div>
  
  </li>
  
  <li>
  
  
  <div id="nav_bar">	
    <ul>
  	  <li><%=link_to "Home", space_path(space)%></li>
  	  <li><%=link_to "Posts", space_posts_path(space)%></li>
  
negative.code: <%if space %>
  <div id="space_logo" class="span-24 last">
    <%= link_icon(space, :size => 48) %>
  </div>
  
  <div id="spaces_select" class="span-6">
    <select id="space_select" name="space">
      <% Space.all.each do |space| %>
      
  