homeoff = new Image();
homeoff.src = '../../Resources/Menu/subI.jpg';
homeon = new Image();
homeon.src = '../../Resources/Menu/subC.jpg';
function roll(imgName, a) {
    imgState = a == 0 ? '../../Resources/Menu/subC.jpeg' : '../../Resources/Menu/subI.jpg';
    document.images[imgName].src = imgState;
}

function ShowSubMenu(name) {
    HideAllSubMenu(name);
    var subm = document.getElementById(name);
    if (subm == null)
        subm = document.getElementById('ctl00_'+name);
    subm.style.display = 'block';
}
function HideSubMenu(name) {
    var subm = document.getElementById(name);
    if (subm == null)
        subm = document.getElementById('ctl00_' + name);
    subm.style.display = 'none';
}
function HideAllSubMenu(name) {
    if ('sAktuelles' != name) HideSubMenu('ctl00_sAktuelles');
    if ('sProdukte' != name) HideSubMenu('ctl00_sProdukte');
    if ('sReferenzen' != name) HideSubMenu('ctl00_sReferenzen');
    if ('sForschung' != name) HideSubMenu('ctl00_sForschung');
    if ('sUnternehmen' != name) HideSubMenu('ctl00_sUnternehmen');
    if ('sKontakt' != name) HideSubMenu('ctl00_sKontakt');
}