on rightclick on a sign:
    line 1 of the clicked block is "=========="
    line 2 of the clicked block is "Checkpoint"
    line 3 of the clicked block is "Rightclick"
    line 4 of the clicked block is "==========":
	set {checkpoint.%player%} to location of block
	message "<gold>-Checkpoint-"
	command "/playsound note.pling %player% ~ ~ ~ 1 2 1"