To draw and save Web Tool

[acer1629]

Hello everybody,
I'd like to draw a little web tool, which allows to draw freehand just like with a simple black felt-tip, with a button to save what has been drawn on a jpg file on my website.
Do you know any examples?
I looked for the code on the net, but none did function.
I'm looking forward your tips
Thank you so much !

[cancerinform]

Here is an example:

http://flashscript.biz/flashas3/Save...SaveImage.html