I think that if you use labels instead of Line numbers, your progrram will be easier to understand.
Instead of:
1 PRINT "TEST"
Use:
IAmALabel:
PRINT "TEST"
Then, in the GOTO you can use the label instead of the line number:
GOTO IAmALabel
Davi Medrade
Master Programmer of Agnetron Software Ltda.
davimedrade@hotmail.com
So Paulo, Brazil