每日总结 5.8

    </div>
        <div class="aside">
        <span id="s">10</span>
        <span>秒后关闭</span>
        &nbsp;&nbsp;
        <button onclick="del()">关闭</button>
        
        </div>

<script type="text/javascript">
        var time = 10; //时间,秒  
        var i = 0;  
        function dis() {  
            document.all.s.innerHTML =  (time - i);  
            i++;  
        }  
        timer = setInterval('dis()', 1000); //显示时间  
        timer = setTimeout('del()', time * 1000);  
    function del(){
        document.getElementById('aside').remove()
    }
        </script>