[jQuery] Handling key event in Chrome or Safari during a popup

[jQuery] Handling key event in Chrome or Safari during a popup


I am currently following the image popup example from:
http://yensdesign.com/2008/09/how-to-create-a-stunning-and-smooth-popup-using-jquery/
The demo is at:
http://yensdesign.com/tutorials/popupjquery/
If I run the demo on Windows XP on Chrome or Safari, the escape key
doesn't close the popup window. How do I handle this in jQuery for
those two browsers?