I am using Adobe Livecycle Designer ES4. I am making a travel form for my company. The form has two date fields “BeginDate” and “EndingDate”. I would like to calculate the days between the two dates in a third field called “TotalDaysOfTravel”. I would also like to have something setup that if the employee choses a date in the “BeginDate” field that is later than the one in the “EndingDate” field that it would give a warning “The ending date is earlier than the beginning date.” The field should be setup to calculate the “TotalDaysOfTravel” automatically if anything in the two date fields change.