private void InitViews() {
    edSubject = (TouchEdit) findViewById(R.id.edCourseSubject);
    btnStartDate = (Button) findViewById(R.id.btnCourseStartDate);
    btnStartTime = (Button) findViewById(R.id.btnCourseStartTime);
    btnStartDate.setVisibility(ImageButton.VISIBLE);
    btnRepeatSelect = (Button) findViewById(R.id.btnRepeatSelect);
    btnRepeatSelect.setVisibility(ImageButton.INVISIBLE);
    btnStartDate.setVisibility(ImageButton.GONE);

    btnSave = (ImageButton) findViewById(R.id.btnCourseSave);
    btnSave.setOnClickListener(
        new View.OnClickListener() {
          public void onClick(View v) {
            SaveData();
          }
        });

    btnDelete = (ImageButton) findViewById(R.id.btnCourseDelete);
    btnDelete.setOnClickListener(
        new View.OnClickListener() {
          public void onClick(View v) {
            DeleteData();
          }
        });
  }