複製語法於<body>與</body>之間。
<script language=javascript> <!-- var pic=new Array(5) pic[0]="photo/1.gif" pic[1]="photo/2.gif" pic[2]="photo/3.gif" pic[3]="photo/4.gif" pic[4]="photo/5.gif" var newdate=new Date() var getpic=newdate.getSeconds()%pic.length document.write('<body background='+pic[getpic]+'>') //--> </script>