} else {
form.start_date_text.disabled = true;
form.start_date.style.backgroundColor = '#dddddd';
form.start_date_button.style.display = 'none';
} else {
form.start_date_text.disabled = true;
form.start_date.style.backgroundColor = '#dddddd';
form.start_date_button.style.display = 'none';