I'm familiar with how to add define pages for customizing them. What I would like to know is if there is any kind of information regarding creating pop up windows similar to popup_cvv_help? I'm trying to write an eCheck module (Quickbooks Merchant Services) and would like to write a "How to find your Account Number and Routing Number" guide similar to the popup_cvv_help rather than create a new page using the define pages method.