>Is there a way to check to see if a variable exists or not. For instance, if var1 exists, do whatever, but if not, declare it and then do it.
>
>Same question goes for arrays and objects. If form exists, do something... if not, do something else or create it.

TYPE('var1') or VARTYPE(var1) equals "U" is about as close as you can get. If the variable's scope is defined (LOCAL var1), they'll (the functions) return "L"