anchor.diff:  
                       function handle_click(event,group_id) {
                            var target = event.target;
  -
                            if (group_id == "nodes"){
                                clear("edges");
                            }
  
positive.code: 
  
                 };
                 function getAttributeVal(target,attribute){
                    for (var i in target.data) {
                        if (i == attribute && target.data[i] != null) {
                            return target.data[i];
                        }
                    }
                }
                function createEditableElement(element, target, variable_name, variable_value) {
                    var input_text = element;
  
                    if (dataValidation[variable_name]["type"] == "boolean") {
                        input_text.type = "checkbox";
                        input_text.value = (variable_value == "true" ? true : false)
  
negative.code:                                 switch(variable_name){
                                      // non-editable attributes:
                                      case "id":
                                      case "description":
                                      case "Synonym":
                                      case "Smiles":
                                          col2.textContent = variable_value;
  