Display checkboxes and radios in columns in CCK, webform or FAPI elements.
Usage
CCK: Multicolumn option settings is in the field configuration screen of field types text, nodereference, userreference, content taxonomy and Select or other if they use the check boxes/radio buttons widget. See README.txt on how to add additional CCK widget type support. If you find any other CCK widget type can be supported, please report in issue queue so they can be added.
Webform: See #946956: Implement alter() hook to allow external module to extend existing components?
Form API: in the definition of checkboxes/radios form element, add the '#multicolumn' property to the checkboxes or radio buttons form element definition:
<?php
$form['my_checkboxes'] = array(
'#type' => 'checkboxes',
'#multicolumn' => array('width' => 3),
.
.
.
);
$form['my_radios'] = array(
'#type' => 'radios',
'#multicolumn' => array('width' => 5,
'row-major' => TRUE,
'indent' => 3,
'caption' => t('December'),
'column-heading' => array(t('Mon'), t('Tue'), t('Wed'), t('Thu'),