EFUN: crypt

SYNTAX:
string crypt( str, seed );
  string str;
  string seed | int seed;

DESCRIPTION:
This encrypts the string 'str' using two characters from 'seed' as a seed.
If 'seed' is 0, then random seed is used.

RETURN VALUE:
Crypt returns the encrypted string

SEE ALSO:
random

EXAMPLE:
string str;

str = crypt( "abcdefg", 0 );
// str if now something like "A0beS3k" (imaginary example)
str = crypt( "abcdefg", "A0beS3k" );
// str if now again be "A0beS3k".
