title "grect"
	screen 0,640,480,0
	cls 2
	font "Arial",14
	m="HSP3.0 Sample 2005"

	x=160:y=160:px=4:py=4
	repeat
	redraw 0
	hsvcolor cnt/2,255,255
	gmode 0,200,200
	grect x,y,double(cnt)*0.07

	pos 482,442:color 0,0,0:mes m
	pos 480,440:color 255,255,255:mes m

	await 12
	redraw 1

	x+=px:if (x=0)|(x=640) : px=-px
	y+=py:if (y=0)|(y=480) : py=-py
	loop