function reset() {
                            var memberID = document.getElementById("txtMemberID");
                            var password = document.getElementById("txtPassword");
                            var verfyCode = document.getElementById("txtVerfyCode");
                            memberID.value = "";
                            password.value = "";
                            verfyCode.value = "";
                        }

                        function checkMemberForm() {
                            var memberID = document.getElementById("txtMemberID");
                            var password = document.getElementById("txtPassword");
                            var verfyCode = document.getElementById("txtVerfyCode");
                            if (String.isNullOrEmpty(memberID.value.trim()))
                            {
                                alert("请输入登陆账号");
                                memberID.focus();
                                return false;
                            }

                            if (String.isNullOrEmpty(password.value.trim()))
                            {
                                alert("请输入密码");
                                password.focus();
                                return false;
                            }

                            if (String.isNullOrEmpty(verfyCode.value.trim()))
                            {
                                alert("请输入验证码");
                                verfyCode.focus();
                                return false;
                            }                           
                            return true; 
                        }
                    
				      function login() {
				          var success = function(result) {
				              switch (result)
				              {
				                  case "id":
				                      break;
				                  case "password":
				                      break;
				                  case "code":
				                      break;

				                  case "verfy":
				                      alert("验证码错误,请重新输入");
				                      //验证码错误
				                      break;
				                  case "disible":
				                      alert("登陆账号已被禁用,请联系网站管理员"); 
				                      break;
				                  case "fail":
				                      alert("登陆账号或密码错误，请重新输入");
				                      break;
				                  case "successful":
				                      document.getElementById("div_member").style.display = '';
				                      document.getElementById("div_login").style.display = 'none';
				                      break;
				                  default:

				              }
				          }

				          if (checkMemberForm() == false)
				          {
				              return;
				          }
				          var memberID = document.getElementById("txtMemberID");
				          var password = document.getElementById("txtPassword");
				          var verfyCode = document.getElementById("txtVerfyCode");
				          var body = String.format("memberID={0}&password={1}&verfyCode={2}", memberID.value, password.value, verfyCode.value);
				          CK.Ajax.submit("/Handler/MemberLoginHandler.ashx", false, body, success);
				      }

				      function logout() {
				          var url = "/Handler/MemberLogoutHandler.ashx";
				          CK.Ajax.getResult(url, false, null);
				          document.getElementById("div_member").style.display = 'none';
				          document.getElementById("div_login").style.display = '';
				          document.getElementById("txtMemberID").value = "";
				          document.getElementById("txtPassword").value = "";
				          document.getElementById("txtVerfyCode").value = "";
				      }
				      function checkIsLogined() {
				          var success = function(result) {
				              if (result == "true")
				              {
				                  document.getElementById("div_member").style.display = '';
				                  document.getElementById("div_login").style.display = 'none';
				              }
				              else
				              {
				                  document.getElementById("div_member").style.display = 'none';
				                  document.getElementById("div_login").style.display = '';
				              }
				          }
				      
				          var url = "/Handler/MemberIsLoginedHandler.ashx";
				          
				          CK.Ajax.submit(url,false,null,success);
				         
				      }
				      checkIsLogined();