Jquery - fancybox and callback

Question

I have problem with fancybox.
I want to write a function that will run when the fancybox opened. How and when to call the function?

Example:

func         


        

Answer 1

The newest way how to make it work is using afterShow or beforeShow:

$("a#registrace").fancybox({
  beforeShow   : function() {
    alert('its working!');
    validate_reg_form();
  }
});

I am loading registration form through ajax and I need to enable form-validation. In both cases (before and after), the content is already loaded.