anchor.diff:  
                  };
   
  -              function checkDataField(group_id, field){
  +          function sort_keys(hash) {
  +              var keys = [],
  +                      k, i, len;
  +              for (k in hash) {
  +                  if (hash.hasOwnProperty(k)) {
  +                      keys.push(k);
  +                  }
  +              }
  +              keys.sort();
  +              return keys;
  +          }
  +
  +          function checkDataField(group_id, field){
                     var val = group_id == "nodes"? nodesDataSchema[field] : (group_id == "edges"? edgesDataSchema[field] : -1);
                     return val;
                 }
  
positive.code:                                      table.appendChild(row);
                                     }
                                  }else{
                                   table.appendChild(row);
                                  }
  
                              }
                              element.appendChild(table);
                          }
  
  
  
  
                      }
  
                  });
  
                  vis.draw({ network: network_xgmml,layout:"Preset"});
  
negative.code:                                target.data["Comment"] = null;
                                 vis.updateData([target]);
                              }
  
                              var sorted_keys = sort_keys(target.data);
  
                              for (var i in sorted_keys) {
                                  var variable_name = sorted_keys[i];
                                  var variable_value = target.data[variable_name];
                                  var row = document.createElement('tr');
                                  var col1 = document.createElement('th');
                                  if (variable_name == 'name')
                                      col1.textContent = 'type of the node';
                                  else
                                      col1.textContent = variable_name;
                                  col1.textAlign = "left";
                                  var col2 = document.createElement('td');
                                  switch(variable_name){
  