UI Datepicker

Hi when I follow the example from http://marcgrabanski.com/code/ui-datepicker/ (date range tab)

$('.dateRange').datepicker({beforeShow: customRange});

// Customize two date pickers to work as a date range

function customRange(input) {

return {minDate: (input.id == 'dTo' ? getDate($('#dFrom').val()) : null),

maxDate: (input.id == 'dFrom' ? getDate($('#dTo').val()) : null)};

}

I have an error : "getDate is not defined". Error appears in IE and Firefox

Please advise on how to fix.

Thanks

Jacques