public static function button($right = false)
    {
        global $LINK;
        if ( $right ) echo('<span style="position: fixed; right: 10px; top: 5px;">');
        echo('<button onclick="showModal(\''.__('Analytics').' '.htmlentities($LINK->title).'\',\'analytics_div\'); return false;" type="button" class="btn btn-default">');
        echo('<span class="glyphicon glyphicon-signal"></span></button>'."\n");
        if ( $right ) echo('</span>');
    }