Soft Reject , PROPER EVENT BINDING. pls help me

Hi
Can anyone please tell me what to improve

PROPER EVENT BINDING: Consider using the preferred .on() method rather than .click(), .bind(), .hover(), etc. For best performance and concise code use event delegation whenever possible

JS File

http://demo.serverdl.net/venus-v1.0/js/theme.js

As it says, replace .click(function()… with .on(‘click’, function()…