Google Chart API おもしろいね。 http://chart.apis.google.com/chart? cht=lxy& chs=80x104& chco=eeeeee& chf=bg,s,eeeeee& chm= s,D8B558,0,-1,8|s,9D802E,1,-1,8|s,F7E0A2,2,-1,8|s,4087C4,3,-1,8| s,215E97,4,-1,8|s,70B6EE,5,-1,8|s,9BCCF2,6,-1,8& chd=t: 37,48,59,26,70,15,15,15,26,70,37,48,59|96,96,96,88,88,80,72,64,64,64,56,56,56| 81,81,81,26,70,37,48,59|80,72,64,56,56,48,48,48| 37,48,59,26,37,48,59,70,26,37,48,5