SPL Runtime Error: Tried to execute CALL on a variable with no function/method reference!
While executing task 'win4':
in:         windows_html (byte 2410 in code block '/var/www/clifford/spl/demos/friends.webspl')
called by:  bother_user (byte 2470 in code block '/var/www/clifford/spl/demos/friends.webspl')
called by:  winmain (near line 72, char 15 in '/var/www/clifford/spl/demos/friends.webspl')
called by:  main (near line 155, char 10 in '/var/www/clifford/spl/demos/friends.webspl')
called by:  ???? (byte 22 in code block '')