jQuery implements secret protection mutual exclusion problem solution

Secret security mutually exclusive questions:
Password security usually has n questions, allowing users to choose 2 or 3 of them, and users are not allowed to select duplicate questions. This requires mutual exclusion of secrets.

The effect is as follows:
jQuery implements secret protection mutual exclusion problem solution_jquery

Below I use jquery to implement password protection mutual exclusion, which is used to solve password protection, voting and other similar mutual exclusion issues. It can support ie6, Firefox, Google, Opera and other most browsers
demo download: http://download.csdn.net/download/cwqcwk1/5956141
Key code:

Copy code The code is as follows: