#bot_zxbar {
	background:#40a8f1;
    bottom: 0;
    height: 69px;
	overflow:visible;
    position: fixed;
    width: 100%;
    z-index:9999;
	_position:absolute;  
	_bottom:auto;  
	_top:expression(eval(document.documentElement.scrollTop+document.  
 
	documentElement.clientHeight-this.offsetHeight-(parseInt(this.currentStyle.marginTop,10)  
 
	||0)-(parseInt(this.currentStyle.marginBottom,10)||0))); 
}
#bot_zxbar #bot_zx {
    height:69px;
    margin: 0 auto;
    position:relative;
    text-align: center;
}