#content .right_mid {
    background-image: url(images/main_adbanner_ch.jpg);
}
#content .left .left_top .title {
	background-image: url(images/main_recommendation_ch.jpg);
}
#content .right_1 .right_1_top .title {
	background-image: url(images/main_highlights_ch.jpg);
}
#content .right_2 .right_2_top .title {
	background-image: url(images/main_bulletin_ch.jpg);
}