#content {
    background: url('../images/courses_bg.gif') repeat-y top;
}

#subNav {
    background: #f1f1f2 url('../images/subNavShadow_grid.jpg') no-repeat bottom;  
}

#bottom {
    background-image: url('../images/courses_bottom_bg.gif');
    height: 250px;
    width: 900px;
}