function showComments (id) {
    if ( $("showComments_"+id).className == "left hidden"){
        $("showComments_"+id).className = "left show"; 
    }
    else { $("showComments_"+id).className = "left hidden";}
}

function addComment (id) {
    if ( $("addComment_"+id).className == "left hidden") {
        $("addComment_"+id).className = "left show";
    }
    else { $("addComment_"+id).className = "left hidden"; }
}