function confirmDelete(tid, cid) {
    if (cid == -1) {
        url = "./?act=dele&tid=" + tid;
        msg = "You are about to delete a WHOLE THREAD.\nDeleting is NOT reversible.\n\nAre you sure you wish to continue?"
    } else {
        url = "./?act=dele&tid=" + tid + "&cid=" + cid;
        msg = "You are about to delete a message.\nDeleting is NOT reversible.\n\nAre you sure you wish to continue?"
    }
    
    if (window.confirm(msg)) {
        document.location = url;
        return true;
    }
}