addOccurrenceButton = new Button(mainComposite, SWT.PUSH);
addOccurrenceButton.setText("Adicionar");
addOccurrenceButton.addListener(SWT.Selection, new Listener(){
public void handleEvent(Event arg0) {
new OccurrenceDialog(getShell(), ((StudentControlCenter) registerScreen).getId(), getMySelf()).open();
}
});
FormData data = new FormData();
data.top = new FormAttachment(0, 0);