function _onChangeIssueCheckBox() {
            var welCheckBox = $(this);
            var welItemWrap = $('#issue-item-' + welCheckBox.data('issueId'));

            if(welCheckBox.is(':checked')){
                welItemWrap.addClass('active');
            } else {
                welItemWrap.removeClass('active');
            }
        }
"change" event of issue-checkbox.
Gets issueId from changed checkbox and
set highlight the issue item has same issue Id.

@private