function switchComments(id) {

    // Get elements
    commentsDiv  = document.getElementById("comments-" + id);
    plusminusImg = document.getElementById("plusminus-" + id);

    if (commentsDiv.style.display == "none") {
        commentsDiv.style.display = "block";   
        plusminusImg.src = plusminusImg.src.replace(/plus/, "minus");   
    } else {
        commentsDiv.style.display = "none";   
        plusminusImg.src = plusminusImg.src.replace(/minus/, "plus");   
    }
}