canvas draw
file of html and js
Merge branch 'master' of https://github.com/louisliutw/50kmap

* 'master' of https://github.com/louisliutw/50kmap:
  modify
  add html
  ad css
  add code
modify by tim
merge canvasDraw.js with canvas.html
Merge branch 'master' of https://github.com/louisliutw/50kmap

* 'master' of https://github.com/louisliutw/50kmap:
  add maps.
  add button mark
  add map.

Conflicts:
	canvas.html