/*-----------------------------------------------------------------------------
 * publications drop down menu.
 *-----------------------------------------------------------------------------
 */

function showPublicationsMenu() {
    document.getElementById('navi-publications').style.left =
        document.getElementById('navi-pub').offsetLeft - 10 + 'px';
    document.getElementById('navi-publications').style.visibility = 'visible';
    return false;
}

function hidePublicationsMenu() {
    document.getElementById('navi-publications').style.visibility = 'hidden';
}

/*-----------------------------------------------------------------------------
 * fresh form information.
 *-----------------------------------------------------------------------------
 */

function showFreshForm(formMsg) {
    document.getElementById('formMessage').innerHTML = formMsg;
}

/*-----------------------------------------------------------------------------
 * course list.
 *-----------------------------------------------------------------------------
 */

function showCatCourses(catNum, catCount) {
    hideAllCourses(catCount);
    document.getElementById('cat-' + catNum).style.display = 'block';
    return false;
}

function hideAllCourses(catCount) {
    for (i = 0; i < catCount; i++) {
        document.getElementById('cat-' + (i + 1)).style.display = 'none';
    }
}