goto and labels
You may jump to any location within a function block by using the goto statement. The syntax is:
where label is an identifier followed by a colon (:). The following code fragment continuously prompts for a number until a number less than 2 is entered.
Screen.write("Enter a number less than 2:")
var x = getche(); //get a value for x
if (a >= 2)
As a rule, goto statements should be used sparingly, since they make it difficult to track program flow.