var $this = $(this);
                    var tooltipIsOpened = false;

                    $('a', $this).on('focus', function () {
                        // see https://github.com/piwik/piwik/issues/4099
                        if (tooltipIsOpened) {
                            $this.tooltip('close');
                        }
                    });

                    $this.tooltip({
                        track: true,
                        show: false,
                        hide: false,
                        content: function() {
                            var title = $(this).attr('title');
                            return $('<a>').text( title ).html().replace(/\n/g, '<br />');
                        },
                        tooltipClass: 'small',
                        open: function() { tooltipIsOpened = true; },
                        close: function() { tooltipIsOpened = false; }
                    });