DatePicker in Lightbox

Hi all...

I use unobtrusive_date_picker plugin for getting date inputs.
It works perfectly fine in a form on a normal page.But when I use the
same on the lighbox window,the date_picker doesn work.

Kindly help me in resolving this...I am not able to find why this is

I use Facebox javascript for Lighbox effect.

Thanks in Advance,