javascript修改控件值，用于客户端修改asp.net服务器控件中的label控件值(转)

<script   language="javascript"   type="text/javascript">

m=5

Time=window.setInterval("Alors()",1000);
function Alors(){
             Ob=document.all("L");
                         Ob.innerHTML=m;
                         m--;
                         if(m==0){
                           window.open('Logon.aspx','_self');
                         }

}

</script>

页面添加

<span id="L">5</span>