/*
 * By Masayan
 */
#back-to-top {
    bottom:50%;
    display:block;
    outline-color:invert;
    outline-style:none;
    outline-width:0pt;
    position:fixed;
    right:5px;
     /* IE5 later && javascript-on */
    /* using underscore hack */
    _position: expression('absolute');
    _top: expression(documentElement.scrollTop + 400 + 'px');
    _right: expression(documentElement.scrollLeft + 5 + 'px');
}

#back-to-top a img {
	border: 0;
}