pigscript 1.3
Please help me improve the code!
My email: pigscript@gmail.com

Tested work on windows 7 & 8 on chrome browser.
Screen resolution may matter, so draw a small test picture first.
New feature: now you can preview the output image and control its color accuracy.

How to draw:
	1. Switch to drawball.com, enable full screen, and choose the pen size.
	2. Run the code or the .exe file.
	3. Follow the instructions on the command line.
	
Caution:
	0. It's recomended that you set your pen size(manually, the program won't do that) to be 1 or 2. If you set your pen size to be x, the output image will be scaled by x.
	1. Make sure the command window does not block the color wheel.
	2. If the image is large(>600*600), it may take several seconds to load.
	3. If the image is too large or too complicated(has more than 8 major colors), it may take very long to draw.
	4. If your screen resolution is not 1280*800 or 1366*768, you need to help the program to locate the big ball and the color wheel.