javascript - Implementing stretching rubber band effect in Canvas -

I'm making a simple prototype in the HTML5 canvas, and basically want to fire a shot. When someone clicks down and pulls back, then I want to stretch the rubber band. It does not have to be right.

Any suggestions on how I can do this? I'm also not sure how to mimic effect :)

thanks

It would be easier to do this with SVG than canvas, especially like a library. see a???? Which is not very different from what you want to do. If you use the Rafa «L, then the port will be more portable than canvas because it will work on IE 6 (using VML).

Update:

Ok, see. It should be too much explained by you or at least you should start it.