js用户修改密码功能模块

;(function(){    var ajaxSub = false,    showError = function(msg){        if(msg){            $('#er_txt').html(msg).show();        }else{            $('#er_txt').html('').hide();        }    },    checkpwd = function(that){            var txt = that.val();            txt = txt.replace(/(^\s*)|(\s*$)/g,'');            if(!txt){                showError('原密码不能为空');                return;
            }            if(txt.length < 6 || txt.length > 20){                showError('密码长度为6-20个字符');                return;
            }            showError(0);    },    newPwd = function(that){            var pwd = that.val(),                reg = /(.)\1\1/;            if(!pwd){                    showError('密码不能为空');                    return false;            }            if(pwd.length < 6 || pwd.length > 20){                    showError('请控制您的密码在6-20之内');                    return false;            }            if(pwd.length > 0 && reg.test(pwd) ){                    showError('密码含有连续相同字符');                    return false;            }            showError(0);            return true;    },    rNewPwd = function(that){            var password = $('#newPwd').val(),                password2 = that.val();;            if(!password2){                    showError('请再次输入您的密码');                    return false;            }            if(password != password2){                    showError('两次输入的密码请保持一致！');                    return false;
            }            showError(0);            return true;
    },    subFun = function(){            var data = {};            checkpwd($('#oldPwd'));            if( !newPwd($('#newPwd')) ) return;            if( !rNewPwd($('#rNewPwd')) ) return;            if(ajaxSub) return;            ajaxSub = true;            data.o = $('#oldPwd').val();            data.n = $('#newPwd').val();            data.r = $('#rNewPwd').val();            $.ajax({                    type : 'get',                    //url : ucWap.dataUrl+'wap/resetpwd/',                    url : 'http://www.example.com/resetpwd/o/'+data.o+'/n/'+data.n+'/r/'+data.r+'',                    data : data,                    dataType : 'jsonp',                    success : function(data){                        if(data.status == 'success'){                            $('#mdPwd_b').hide();                            $('#mdPwd_a').show();                        }else{                            showError(data.msg);                        }                        ajaxSub = false;                    },            });            return false;    };    $(document).delegate('#oldPwd','blur',function(){        checkpwd($(this));    }).delegate('#newPwd','blur',function(){        newPwd($(this));    }).delegate('#rNewPwd','blur',function(){        rNewPwd($(this));    }).delegate('#mdPwd','click',function(){        subFun();    });}());