jquery 自己学习 注册...

<script type="text/javascript">
        function checkUserId()
        {
            $.get("Default.aspx",SendingData(),callback);
        }
        
        function callback(data)
        {
            //alert(data);
            
            if($("#txtUserId").val()=="")
            {
                $("#result").html("");
                return;
            }
            
            if(data=="该帐号已被注册！")
            {
                $("#result").css({color: "red", background: "#cde6c7"});
                $("#result").html(data);
                $("#txtUserId").select();
                $("#txtUserId").focus();
            }
            else
            {
                $("#result").css({color: "green", background: "#cde6c7",width:"90%"});
                $("#result").html("<b>OK</b>");
            }

        }
        
        function SendingData()
        {
            var _userId,_dataType,_json,_number;
            
            _userId = $("#txtUserId").val();
           
            _dataType = "txtUserId";
            
            _json = {userId:_userId,dataType:_dataType};
            
            return _json;
        }
        
    </script>
    <script type="text/javascript">
        $(function(){
              $("#txtConfirmPwd").bind("blur",pwdblur);
              $("#txtPwd").bind("blur",pwd1);
        });
        
        var pwdblur = function(){
            if($("#txtPwd").val()!=""||$("#txtConfirmPwd").val()!="")
            {
                if($("#txtPwd").val()!=$("#txtConfirmPwd").val())
                {
                     $("#dvPwd").css({color: "red", background: "#cde6c7"});
                     $("#dvPwd").html("确认密码不正确！");
                }
                else
                {
                     $("#dvPwd").css({color: "green", background: "#cde6c7"});
                     $("#dvPwd").html("<b>OK</b>");
                }
            }
        };
        
        var pwd1 =  function(){
            if($("#txtPwd").val()!="")
            {
                if($("#txtPwd").val().size < 6|| $("#txtPwd").val().size >12 )
                {
                    $("#dvPwd1").css({color: "red", background: "#cde6c7"});
                    $("#dvPwd1").html("密码位数不正确！");
                    $("#txtPwd").select();
                    $("#txtPwd").focus();
                    
                }
                else
                {
                     $("#dvPwd1").css({color: "green", background: "#cde6c7"});
                     $("#dvPwd1").html("<b>OK</b>");
                }
            }
           
        };
    </script>