SO - 22781256

by Arun P Johny

HTML

<input type="radio" name="item" class="className" />
<input type="radio" name="item" class="className" />
<input type="radio" name="item" class="className" />

JavaScript

$(document).on('dblclick','.className',function(){
    if(this.checked){
        $(this).prop('checked', false);
    }
});