private Button buildRemoveParameterButton(final HorizontalPanel entry) {
   Button remButton = new Button();
   remButton.setStyleName(removeParamButton.getStyleName());
   remButton.setHTML(removeParamButton.getHTML());
   remButton.addClickHandler(
       new ClickHandler() {
         public void onClick(ClickEvent event) {
           removeParameter(entry);
           enableSaveButton();
         }
       });
   return remButton;
 }