Answers for "multiselect box"

multiselect

<!-- Initialize the plugin: -->
<script type="text/javascript">
    $(document).ready(function() {
        $('#example-getting-started').multiselect();
    });
</script>

multiselect checkbox

var expanded = false;

function showCheckboxes() {
  var checkboxes = document.getElementById("checkboxes");
  if (!expanded) {
    checkboxes.style.display = "block";
    expanded = true;
  } else {
    checkboxes.style.display = "none";
    expanded = false;
  }
}