랜덤 이미지 스크립트

<Script Language ="JavaScript">
<!--
  function RandomNumber()  {
      var today = new Date();
      var num= Math.abs(Math.sin(today.getTime()/1000));
      return num;
  }

  function RandomGraphics()  {
      var x = RandomNumber();
      if (x > .77)
        {document.write ("<img src='이미지화일1.gif' align=center hspace=10>"); return; }
      if (x > .33)
        {document.write ("<img src='이미지화일2.gif' align=center hspace=10>"); return; }
      if (x > .0)
        {document.write ("<img src='이미지화일3.gif' align=center hspace=10>"); return; }
  }

  RandomGraphics();
-->
</SCRIPT>