I’ve had some users that accidentally hit back on their browsers when trying to close the thickbox (instead of hitting the Close Button)... is there a way to make it so the user can click back on their browser and it’ll close the thickbox, instead of the browser going back to the previous page in the history?

Or as an alternative, could I disable the back button while a thickbox is open? This only happens in IE, FF closes out the thickbox, but IE is a problem.