Byecity.Eti.Login = function() { };

Byecity.Eti.Login.prototype.getimgcode = function() {
     //刷新验证码
     var r = Math.round(( Math.random() * 100 )); //随机数
     r++; // 每次都随机数自加，避免url重复
     var getimagecode = document.getElementById("getcode");
     getimagecode.src = "VerifyCode.aspx?r=" + r;
 };

 Byecity.Eti.Login.prototype.reset = function() {
     document.getElementById("txtLoginName").value = "";
     document.getElementById("txtLoginPassword").value = "";
     document.getElementById("txtCheckCode").value = "";
 };

 var login = new Byecity.Eti.Login();