/**
 * IE6
 */
body {
  _background-image: url(about:blank);
  _background-attachment:fixed;
}
.to_any {
  width: 50px;
  height: 36px;
  bottom: 200px;
  right: 20px;
  background: url('/images/top.png') no-repeat;
  display: none;
  _position:absolute;
  _top:expression(eval(
    document.documentElement.scrollTop + 
    document.documentElement.clientHeight - 
    (parseInt(this.currentStyle.bottom, 10) || 0) - 
    (parseInt(this.currentStyle.height, 10) || 0)
  ));
}