OK, CANCEL	(OK is only active if there are no errors in the value script)
TextBox(variableName), Button(browse variableList)
DropList (=  +  -  *  /)
Value of:	TextBox(value), Button(value wizard)
TextField:	shows equation  (targetVariable (op) valueEquation)


Error:  Math operation on string value
		(strings can ONLY use  =  + )
		(ignores & continues gameplay)