Advanced Search: Enable greater than/less then for date fields
<?php$dg -> set_col_property("COLUMN_NAME", array("formatter"=>"date", "sorttype"=>"date", "searchoptions"=> array("dataInit"=>"###datePick###")))->enable_advanced_search(true);?>
Javascript to enable datepicker control
<script> datePick = function(elem) { $(elem).datepicker({ dateFormat: 'dd-M-yy', autoSize: true, changeYear: true, changeMonth: true, showButtonPanel: true, showWeek: true }); }</script>