+ <input type="hidden" name="taxincluded_changed_by_user" id="taxincluded_changed_by_user" value="[% taxincluded_changed_by_user ? '1' : '0' %]">
+ <input name="taxincluded" onclick="document.getElementById('taxincluded_changed_by_user').value = '1';" class="checkbox" type="checkbox" [% IF taxincluded %]checked[% END %]>