在客户端运行的“关于注册验证“的相关信息的代码---在线购物系统

function checkform() {

            var name = $.trim($('#<%=txtName.ClientID %>').val()); //$.trim()---取出空格

            var pwd = $.trim($('#<%=txtPwd.ClientID %>').val());      //var pwd = $.trim(document.getElementById('<%=txtPwd.ClientID %>').value);  和左边效果是一样的

            var cpwd = $.trim($('#<%=txtCppwd.ClientID %>').val());

            var email = $.trim($('#<%=txtEmail.ClientID %>').val());

            var question = $.trim($('#<%=txtQuestion.ClientID %>').val());

            var answer = $.trim($('#<%=txtAnswer.ClientID %>').val());  //<%=txtName.ClientID %>,原因是有母页办，这样才能操作html标签

            if (name.length == 0 || pwd.length == 0 || cpwd.length == 0 || email.length == 0 || question.length == 0 || answer.length == 0) {

                alert("注册要写完整");

                return false;

            }

            if (pwd != cpwd) {

                alert("两次密码不一样");

                return false;

            }

            var reg = /^[a-zA-Z0-9]{6,20}$/g;

            if (!reg.test(pwd)) {

                alert("密码格式不对");

                return false;

            }

            reg = /\w+([-+.']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*/g;

            if (!reg.test(email)) {

                alert("邮箱格式不对");

                return false;

            }

            return true;

        }