Function: IsNumeric()
Purpose: The IsNumeric function returns a value of true if the referenced variable can be evaluated as a number. Otherwise, it returns false.
Usage: IsNumeric(variable_name)
Where variable_name is the name of the variable you wish to test.
Returns: True if the referenced variable can be evaluated as a number; False otherwise.
Example
Dim TestEmpty
TestInt = Int(1)
TestQuote = "Test"
TestDec = 123.45
IsNumeric(TestInt) returns True
IsNumeric(TestQuote) returns False
IsNumeric(TestDec) returns True