var imglist = new Array(
      "doll_1.css",
      "doll_2.css",
      "doll_3.css",
      "doll_4.css",
      "doll_5.css",
      "doll_6.css",
      "doll_7.css",
      "doll_8.css",
      "doll_9.css",
      "doll_10.css",
      "doll_11.css");
   var selectnum = Math.floor((Math.random() * 100)) % imglist.length;
   var output = "<link href=common/css/" + imglist[selectnum] + " rel=\"stylesheet\" type=\"text/css\">";
   document.write(output);