function Browser()
{
    if(((parseInt(navigator.appVersion) >= 3)) && ((navigator.appName.indexOf("Netscape") >= 0))
    || ((parseInt(navigator.appVersion) >= 4)) && ((navigator.appName.indexOf("Microsoft") >= 0)))
    {
        return true;
    }
}
if(Browser())
{
    m01 = new Image(); m01.src = "/images/menu01.gif";
    m_01 = new Image(); m_01.src = "/images/menu_01.gif";
    m02 = new Image(); m02.src = "/images/menu02.gif";
    m_02 = new Image(); m_02.src = "/images/menu_02.gif";
    m03 = new Image(); m03.src = "/images/menu03.gif";
    m_03 = new Image(); m_03.src = "/images/menu_03.gif";
    m04 = new Image(); m04.src = "/images/menu04.gif";
    m_04 = new Image(); m_04.src = "/images/menu_04.gif";

}
function BW(BildID,Bildobjekt)
{
    if(Browser())
    {
        window.document.images[BildID].src = Bildobjekt.src;
    }
    return true;
}