Form submit not working in bootstrap custom radio buttons

Question

I am using bootstrap3 for my site..I have to implement custom radio buttons. I implemented custom radio buttons and styling is looking fine using bootstrap3 button styles. The working demo is here But, on submitting the radio button which is checked is not passing through the form which can be seen on clicking submit in demo. I am always getting 'undefined'.The radio button group itself is not submitting it's value.

Though radio buttons are hidden the form values should submit..But not sure why it is not submitting hidden radio button values..

Answer 1

Use this instead..

$('input[name=year]:checked').val()

Demo: http://www.bootply.com/123377