loading Datepicker inside colorbox problem

loading Datepicker inside colorbox problem

I`m using Colorbox to load a contact form from an external HTML file and in the form i want datepicker to work , both files have the datepicker script but it doesn`t seem to be working ?

  1. $('#form').colorbox({href:'forms.html form#form'});
  3. $('.datepicker').datepicker({
  4. changeMonth: true,
  5. changeYear: true,
  6. showButtonPanel: true
  7. });
so how can i make it happend ?