function show_submenu(Id, PathDepth) 
{
    var submenueId = 'submenue_' + Id;
    loadMenue(Id, PathDepth);

    if (Id != 'four') {
        element = document.getElementById(submenueId);
        element.style.display = element.style.display == 'block' ? 'none' : 'block';
    }
}

function loadMenue(Id, PathDepth) 
{
    var Path = '';
    for (i = 0; i < PathDepth; i++) {
        Path = Path + '../';
    }
    
    if (Id != 'one') {
        document.getElementById('submenue_one').style.display = 'none';
        document.getElementById('menue_one').src = Path + 'Media/Images/home.gif'
    }
    else
        document.getElementById('menue_one').src = Path + 'Media/Images/home_over.gif'
    
    if (Id != 'two') {
        document.getElementById('submenue_two').style.display = 'none';
        document.getElementById('menue_two').src = Path + 'Media/Images/aktuelles.gif'
    }
    else
        document.getElementById('menue_two').src = Path + 'Media/Images/aktuelles_over.gif'

    if (Id != 'three') {
        document.getElementById('submenue_three').style.display = 'none';
        document.getElementById('menue_three').src = Path + 'Media/Images/idealer_haus.gif'
    }
    else
        document.getElementById('menue_three').src = Path + 'Media/Images/idealer_haus_over.gif'

    if (Id != 'four') {
        document.getElementById('submenue_four').style.display = 'none';
        document.getElementById('menue_four').src = Path + 'Media/Images/sponsoren.gif'
    }
    else
        document.getElementById('menue_four').src = Path + 'Media/Images/sponsoren_over.gif'

    if (Id != 'five') {
        document.getElementById('submenue_five').style.display = 'none';
        document.getElementById('menue_five').src = Path + 'Media/Images/stromspartipps.gif'
    }
    else
        document.getElementById('menue_five').src = Path + 'Media/Images/stromspartipps_over.gif'

    if (Id != 'six') {
        document.getElementById('submenue_six').style.display = 'none';
        document.getElementById('menue_six').src = Path + 'Media/Images/kontakt.gif'
    }
    else
        document.getElementById('menue_six').src = Path + 'Media/Images/kontakt_over.gif'

}