I'm creating an invoive. Some customers are charged sales tax and some are not. Is there a way to display a table row if database sales tax variable is greater than 0 and hide or not print that row if it is less than or equal to 0? Thanks.

This can be done. Here is how you can program this :-
http://safari.oreilly.com/0321442598/ch11lev1sec9

I got the elements to hide. Everything looks great in the html but when I print to pdf it inserts blank line where the hidden elements are. Is there a way to not print anything if the element is hidden?

mcundith,
Not sure about that, it might just be an issue with the PDF export function. I don't have a workaround for you right now, sorry.