Java servlets：如果JavaScript（在客户端）已被篡改，如何检测（在服务器端）？

This is a very general question, but please bear with me ... I have recently put alot of effort in form validation javascript, before submitting forms to my server, then the idea hit me ... I have countless times viewed the source of websites to find how things work. Also we all know that although we could not change JavaScript, but when it comes to form validation, we can set a break-point before the validation script runs, change the div/input tag id/class that is to be validated, then put it back to its original name after stepping through the validation steps and before submitting the form. This is a very general question, but please bea