statement/ON                                                     statement/ON
 
 NAME
     ON -- Redirects program execution conditionally
 
 ABBREVIATION
     None

 SYNOPSIS
     ON <expression> GOSUB <line>[,<...>,<line>]
     ON <expression> GOTO <line>[,<...>,<line>]

 FUNCTION
     This command can make the GOTO and GOSUB statements into special 
     versions of the IF statement. The word ON is followed by a formula, then
     either GOTO or GOSUB, and a list of line numbers separated by commas. If
     the result of the calculation of the formula (<expression>) is 1, the 
     first line (<line>) in the list is executed. If the result is 2, the 
     second line number is executed, and so on. If the result is 0, or larger
     than the number of line numbers in the list, the next line executed is 
     the statement following the ON statements. If the number is negative, an
     ILLEGAL QUANTITY ERROR results.
 
 INPUTS
     <expression> - BASIC expression resulting a numeric value
     <line>       - line number where program execution should continue
 
 RESULT
     Program execution continues at the line chosen from the line number list
     according to a value determined by a BASIC expression (<expression>).

 EXAMPLES
     10 INPUT X:IF X<0 THEN 10
     20 ON X GOTO 50, 30, 30, 70
     25 PRINT "FELL THROUGH":GOTO 10
     30 PRINT "TOO HIGH":GOTO 10
     50 PRINT "TOO LOW":GOTO 10
     70 END
         When X = 1, ON sends control to the first line number in the list 
         (50). When X = 2, ON sends control to the second line (30), etc.
 
 NOTES
     None
 
 BUGS
     None
 
 SEE ALSO
     GOSUB
     GOTO
     IF