anchor.diff:  						<%= image_tag("/images/icons/folder-horizontal.png", :title => t(:up), :alt => t(:up), :border => 0)%>
   						<%= link_to "..", :action => "show", :id => @repository.id, :branch => branch %></td>
   				<% else %>
  -					<td><%= link_to "..", :action => 'show', :id => @repository.id, :dir => troot, :tree => @grit_repo.tree(params[:back]).id, :back => tree.id, :branch => branch %></td>
  +					<td><%= link_to "..", :action => 'show', :id => @repository.id, :dir => troot, :branch => branch %></td>
   				<% end %>
   				<td></td>
   				<td></td>
  
positive.code: 	  <% branch = params[:branch] if params[:branch] %>
  		<% root_dir = "" %>
  		<% root_dir = params[:dir] + "/" if params[:dir] %>
  		<% tree = @grit_repo.tree(branch) %>
  		<% tree = @grit_repo.tree(branch, root_dir ) if params[:dir] %>
  		<% if params[:back] %>
  			<tr class="dir">
  				<% troot = (Pathname(root_dir) + "..").to_s %>
  				<% if (params[:back] == branch) || troot == "." %>
  
negative.code: 			<tr class="dir">
  				<td>
  				<%= image_tag("/images/icons/folder-horizontal.png", :title => dir.basename, :alt => dir.basename, :border => 0) %>
  				<%= link_to dir.basename, :action => 'show', :id => @repository.id, :dir => root_dir +"#{dir.basename}", :branch => branch %></td>
  				<td></td>
  				<td></td>
  			</tr>
  