anchor.diff:          var SAVE_URL = '/model';
           var curr_assembly = <%= @curr_assembly.to_json.html_safe %>;
       </script>
  -    
  -    <script type="text/javascript">
  -			
  -		$(document).ready( function() {
  -			$('#assemblyTree').fileTree({ root: '../../demo/', script: 'connectors/jqueryFileTree.php', folderEvent: 'dblclick', expandSpeed: 1, collapseSpeed: 1 }, function(file) { 
  -				alert(file);
  -			});
  -		});
  -	</script>
   
       <% javascript_include_tag "model" %>
       <% stylesheet_link_tag "model", media: "all" %>
  
positive.code:         <button id="save" class="btn-flat"> Save </button>
      </td>
      
      <!--<td id="fileTree">-->
      <!--    <div class="example">-->
      <!--		<h2>Assemblies in this project:</h2>-->
      <!--		<div id="assemblyTree" class="demo"></div>-->
  	   <!-- </div>-->
      <!--</td>-->
  
      </tr>
  </table>
  </body>
  
negative.code:     <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/materialize/0.97.7/css/materialize.min.css">
      <script src="https://cdnjs.cloudflare.com/ajax/libs/materialize/0.97.7/js/materialize.min.js"></script>
  
      <!-- icons -->
      <link href="https://fonts.googleapis.com/icon?family=Material+Icons" rel="stylesheet">
    
      <!-- vars -->
      <script type="text/javascript">
          var materials = <%= @material_data.to_json.html_safe %>;
  