How to Close Fancybox from an Iframe

How to Close Fancybox from an Iframe

i use fancybox in i frame.i have button in iframe and after click that button close fancy box.
bellow code is not working.

  1.  $.fancybox.close();
and also i used like this.bellow code is not working also.
  1.  parent.$.fancybox.close();
i need to close fancy box and then scroll down parent page. Anyone can help me to fiexd this issue.



Thank you,