Question

I’m attempting to use the .on() from jQuery to catch a scroll event that is inside a tag.

so this was my solution:

• the div id=’popup’
• the .fixedHeader class is something I’m trying have fixed at the top of the div frame.

• getScrollTop() is a javascript function to return the top value (works)

  $(document).on("scroll#popup", '#popup', function(){
     alert('scrolling');
     $(".fixedHeader").css("position", "relative");
     $(".fixedHeader").css("top", getScrollTop());
  });
  

Answer 1

The event is simply scroll, not scroll#popup.

// http://ejohn.org/blog/learning-from-twitter
// Also, be consistent with " vs '
var $fixedHeader = $('.fixedHeader').css('position', 'relative');

$(document).on('scroll', '#popup', function() {
   console.log('scrolling'); // you *really* don't want to alert in a scroll
   $fixedHeader.css("top", getScrollTop()); 
});