// JavaScript Document

var imglist = new Array(
      "img/visual01.jpg",
      "img/visual02.jpg",
	  "img/visual03.jpg",
      "img/visual04.jpg" );
   var selectnum = Math.floor((Math.random() * 100)) % imglist.length;
   var output = "<img src=" + imglist[selectnum] + ">";
   document.write(output);