Jim Scott - 2010-09-20

I have changed the date format to dd/mm/yy so that it displays english date format. The date field is a required one, but when the form is submitted it says there is an error and to correct it. I am getting the date from the inbuilt calendar. Where is the error checking for the date format and what should it look like for the dd/mm/yy.  Are there any other area's to look at with changing the date format.
Thanks Jim.