function disableDefaultCheckboxOnChange(checkbox_id, default_value, element) {
	if (element.value != default_value) {
		$(checkbox_id).checked = false;
	}	else {
		$(checkbox_id).checked = true;
	}
}

function setDefaultTitleOnCheck(element, textfield_id, title) {
	if (element.checked == 1) {
		$(textfield_id).value = title;
	}
}

function updateTaggedPagesTextField(element, textfield_id) {
	if (element.checked == 1) {
		$(textfield_id).disabled = false;
	} else {
		$(textfield_id).disabled = true;
		$(textfield_id).value = '';
	}
}

function disableLatestNewsSelect(element, select_id) {
	if (element.checked == 1) {
		$(select_id).disabled = false;
	} else {
		$(select_id).disabled = true;
	}
}