可单独关闭对联广告两枚

<!--对联广告开始-->
<style type="text/css">
    html,body{
    height:1000px;
    }
    #zzjs_net_1,#zzjs_net_2{
    width:170px;
    height:360px;
    background-color:#eee;
    border:1px solid #ddd;
    }
    #www_zzjs_net{
    height:1000px;
    }
</style>
<script language="javascript" type="text/javascript">
    lastScrollY=0;
    function heartBeat(){
        var diffY;
        if (document.documentElement && document.documentElement.scrollTop)
            diffY = document.documentElement.scrollTop;
        else if (document.body)
            diffY = document.body.scrollTop
        else
            
            {/*Netscape stuff*/}

            //alert(diffY);
            percent=.1*(diffY-lastScrollY);
            if(percent>0)
                percent=Math.ceil(percent);
            else 
                percent=Math.floor(percent);

            document.getElementById("zzjs_net_1").style.top=parseInt(document.getElementById
            ("zzjs_net_1").style.top)+percent+"px";
            document.getElementById("zzjs_net_2").style.top=parseInt(document.getElementById
            ("zzjs_net_1").style.top)+percent+"px";
            lastScrollY=lastScrollY+percent;
            //alert(lastScrollY);
    }
    j1="<div id=\"zzjs_net_1\" style='left:2px;position:absolute;top:120px;'><span style='display:inline-block;float:right;cursor:pointer' onclick='this.parentNode.style.display=\"none\"'>关闭</span><a href='http://www.baidu.com' target='blank'><img src='http://danbao.test.cn/skin/images/002.jpg' width='170px' height='360px'></a></div>"
    j2="<div id=\"zzjs_net_2\" style='right:2px;position:absolute;top:120px;'><span style='display:inline-block;float:right;cursor:pointer' onclick='this.parentNode.style.display=\"none\"'>关闭</span><a href='http://www.baidu.com' target='blank'><img src='http://danbao.test.cn/skin/images/002.jpg' width='170px' height='360px'></a></div>"
    document.write(j1);
    document.write(j2);
    window.setInterval("heartBeat()",1);
</script>
<!--对联广告结束-->

<!--对联广告开始-->
<style>
    .couplet_ad
    /* 底部固定*/{position:fixed;bottom:auto; top:0; width: 170px; height: 360px; z-index:99999; margin-top:200px;}
    * html .couplet_ad
    /* IE6 底部固定*/{_position:absolute;
    _bottom:auto;
    _top:expression(eval(document.documentElement.scrollTop));}
    .couplet_ad a{ display:block; cursor:pointer;}
    #ad_left{ left: 0px;}
    #ad_right{ right: 0px;}
</style>
<script language="javascript">
    function ad_left(){
        document.getElementById('ad_left').style.display="none";
    }
    function ad_right(){
        document.getElementById('ad_right').style.display="none";
    }
</script>
<div class='couplet_ad' id='ad_right'>
	{ad(33)}
	<a onClick="ad_right();"><img  src="http://filesimg.111cn.net/2013/12/18/20131218034510670.gif"  /></a>
</div>
<div class='couplet_ad' id='ad_left'>
	{ad(32)}
	<a onClick="ad_left();"><img  src="http://filesimg.111cn.net/2013/12/18/20131218034510670.gif"  /></a>
</div>
<!--对联广告结束-->