private AssignmentFunctionListbox assignmentFunctionsCombo = null;
private Button assignmentFunctionsConfigureButton = null;
private void initializeAssigmentFunctionsCombo() {
hboxAssigmentFunctionsCombo = new Hbox();
assignmentFunctionsCombo = new AssignmentFunctionListbox(
functions, getAllocation().getAssignmentFunction());
hboxAssigmentFunctionsCombo.appendChild(assignmentFunctionsCombo);
assignmentFunctionsConfigureButton = getAssignmentFunctionsConfigureButton(assignmentFunctionsCombo);
hboxAssigmentFunctionsCombo.appendChild(assignmentFunctionsConfigureButton);