function checkFlag() {
	var flag = document.getElementById('adresseLivFlag');
	var adresseLiv = document.getElementById('adresseLiv');
	if (flag.checked == 1) {
		adresseLiv.readOnly = 1;
		adresseLiv.value = '';
		adresseLiv.disabled = true;
	}
	else {
		adresseLiv.readOnly = 0;
		adresseLiv.disabled = false;
	}
}