.izl-rmenu{position:fixed; right:0; margin-right:20px; bottom:20px; padding-bottom:20px; z-index:999;
 _position:absolute; 
_top:expression(eval(document.documentElement.scrollTop+document.documentElement.clientHeight-this.offsetHeight-(parseInt(this.currentStyle.marginTop,10)||0)-(parseInt(this.currentStyle.marginBottom,10)||0)));;
 /* for IE6 */ overflow:visible;}
.izl-rmenu .btn{width:51px; height:51px; margin-bottom:9px; cursor:pointer; position:relative;}

.izl-rmenu .btn-top{background:url(../images/top.png) 0px 0px no-repeat; display:none;}
.izl-rmenu .btn-top:hover{filter:alpha(opacity=80); -moz-opacity:0.8; -khtml-opacity: 0.8; opacity: 0.8;}