골드다 vs 실버다if(Math.floor(Math.random()*3)==1)a='http://file2.instiz.net/data/cached_img/upload/2015022721/3811fc0d92a8272c3e318696308f766d.jpg'; else a='http://file2.instiz.net/data/cached_img/upload/2015022721/b4f6db82e9c6a27612641061d61bf93b.jpg'; document.getElementById('abc'). src=a; 64