function showComment(id, expcolid, show) {
    // ...
}

function showAddCommentForm(id, show) {
    (show) ? function () { showComment('sub' + id, 'expcolid' + id, true); } : function () { showComment('sub' + id, 'expcolid' + id, false); };
}

// anything wrong with the code in the second function??