Sometimes, you have some code that you only want excecute if any one of several variables changes. The conditional statement can get long if you are checking many vars. Here is an unusual method that can both shorten the conditional statement and reduce the number of "value.old" vars. See inside.
Credit to ??? I learned this from another coder, a long time ago, and, have forgotten who. Credit to @papipupepappa for the source project (which saved me some typing) LOL
