Synopsis:
   $isconnected([<server refnum>])

Technical:
   This function tells wether a server is fully connected and ready to
   receive data. If no arguments are given, the last server to send you data
   is assumed.

Returns:
   1   If <server refnum> is connected and ready
   else returns -1

Examples:
   /window refnum 1 server irc.primenet.com
   $isconnected(1)              returns 1

See Also:
   servername(6)