function expandModelFilter()
{
    document.getElementById('divFilterModelShort').style.display = 'none';
    document.getElementById('divFilterModelAll').style.display = 'block';
}

function collapseModelFilter()
{
    document.getElementById('divFilterModelAll').style.display = 'none';
    document.getElementById('divFilterModelShort').style.display = 'block';
}