Incrementing dates, subtracting two dates

Is there a relatively easy way to 1. increment a date IE: if say you have a 
system date of 10/24/2005 and want to add 45 days to it...IE: payable due 
date. and 2. substract two dates to get a number of days IE: 10/24/2005 - 
08/01/2005 to determine the number of days since.

Bob, does your service program do any of this? When I looked through the 
help file I did not see anything that appeared to match up.


If you bought it, it was hauled by a truck - somewhere, sometime.