Thread:Project:Support desk/Error checking

I am attempting to write an error checking function that checks to see whether a user has supplied either a year (####) or the word "Present". (This is for an infobox for a vehicle. I want to display the production years.) I am 99% of the way there with the following:

The issue that I am having is that if a valid date is supplied, then the expression evaluates and is displayed. Is there an easy way to suppress that expression? I seem to remember seeing a "span display=none" type thing somewhere...

Any advice will be greatly appreciated.

UPDATE
 * Solved the problem 2 minutes later... Go figure... :-)  was my solution.