CheckBox 分组全选/全不选

<script language="javascript">
function CheckAll(obj,theid){
for (var i=0;i<obj.elements.length;i++){
var e=obj.elements[i];
//alert(e.name);
if (e.cid==theid)e.checked=document.all[theid].checked;
}
}

function CheckMain(the,obj){
    for (var i=0;i<obj.elements.length;i++){
        var e=obj.elements[i];
        //alert(e.name);
        if (the.cid==e.id)
        {
            if(!e.checked)
            {
                //alert("1");
                //document.all[thecid].checked=e.checked;
                e.checked=the.checked;
            }
            break;
           
        }
    }
}
</script>

 

注意：不能用.Net标准控件，应该用Html控件加上runat="server"