Layui文本框失去焦点和AJAX验证msg弹框的使用

$("#name").blur(function(){
    var value = this.value;
    var node = this;
    $.post('<%=root%>/user/checkName',{name:value},function (data) {
        if(data=='false'){
            layer.msg('['+value+']已经被占用',{icon: 5});//!,ok,wrong,question,lock,cry,smile
            node.focus();
        }

    });
})