table.schedule td.session .icon-favorite-on {
    background-image: url("/incogito/images/favorite_off.png")
}

table.schedule td.session .icon-favorite-off {
    background-image: url("/incogito/images/favorite_on.png")
}

#session-index .session-collapsed .session-expander {
    background: no-repeat left center url("/incogito/images/tango/16x16/actions/list-add.png");
}

#session-index .session-expanded .session-expander {
    background: no-repeat left center url("/incogito/images/tango/16x16/actions/list-remove.png");
}