Jesse Baird

I just started on a project that I knew was going to need some sort of data lock that would prevent 2 users from editing the same data at the same time.  At first I thought that i would have to write a function that behaved like the C function flock().  I ran across this forum post http://www.dmcinsights.com/phorum/read.php?13,30233,30260 which I have to give credit to is the inspiration for the code below.