I have a page where the users can input a follow up date and time. The issue is that these are 2 separate fields, what I need to do is when the user inputs a date and time I need to compare it to the previous date/time that was entered if there was one and then make sure that the new entry is a later date/time then the previous entry. ie if the previous entry was 2/08/2008 at 3pm and the user inputs 2/08/2008 2:20pm then it would trigger a message to let the user know that they must input a time that is later than the previous time. How can I accomplish this:
1. Put the date and time fields together into one field that is still a valid date/time value
2. Compare the two(I know I'll be using javascript for this part and I believe I already have the script to compare the dates just need to get the values into a date/time variable for comparison)
