+Examines each character in s (in reverse order). +
++Returns True if all of the characters in s are in the range +'0'..'9'. Returns False if any character is not in the required range, or when s is an empty string (''). +
++Calls the IsNumeric routine to determine the return value. +
++Returns True if all of the characters in s are in the range +'0'..'9'. Returns False if any character is not in the required range, +or when s is an empty string (''). +
+