& isnum()
 
  Syntax: isnum(<string>)
 
  This function will return return 1 if the argument is a valid number 
  and 0 if it is not.
 
  Example:
 
  > say isnum(22223.0000)
  You say "1"
  > say isnum(77)
  You say "1"
  > say isnum(22 L)
  You say "0"
  >say isnum(Bad Numbers!)
  You say "0"
 
	See Also: isdbref(), isword