add calendar to views filter

Hi,
I have a view and a exposed filter by User Ip log timestamp. I'd like to use date calendar there, but i can't. How should i do this? As this isn't a cck field, the calendar module doesn't find it.
I think it's something at his part of code

  $data['uiplog']['timestamp'] = array(
 [...]
    'filter' => array(
      'handler' => 'views_handler_filter_date',
 [...]

but i don't know how to solve this.

*EDIT*
I'm not sure if it's a calendar, or just 'date popup', but i mean the calendar that appears to choose month/year/day by clicking.