gistfile1.js

$("#vote_yes_top, #vote_yes_bottom").click(function() {
  $.each($('input[type=checkbox]:checked'), function(key, value) {
    var approval_string = "approval_"+value.value
    $(value.form.children(approval_string)).val(true)
    $('#'+$(value.form).submit())
  });
});

$("#vote_no_top, #vote_no_bottom").click(function() {
  $.each($('input[type=checkbox]:checked'), function(key, value) {
    var approval_string = "approval_"+value.value
    $(value.form.children(approval_string)).val(false)
    $('#'+$(value.form).submit())
  });
});