For a new custom module I wanted to have a calendar that did not cause a postback when you change month, and the popupcalendar used in the Events module is ideal.
The only snag is that I want the date in UK format (dd/mm/yyyy) rather than US. I have done this by altering the popupcalendar.js file which works fine but is not ideal, since I will need to alter the source every time there is an upgrade. Looking at the editEvents source, I cannot quite see you you get from the calendar commandbutton (a asp:hyperlink) to the javascript command which invokes the calendar with 9 arguments, one of which is the date format.
Can anyone please unravel the mystery? Thanks!