#main_nav_list a#main_nav_item1 {
				   background: url(img22.png) no-repeat;

				}
				#main_nav_list a#main_nav_item1:hover {
				   background: url(img23.png) no-repeat;

				}
			#main_nav_list a#main_nav_item3 {
				   background: url(img1.png) no-repeat;

				}
				#main_nav_list a#main_nav_item3:hover {
				   background: url(img2.png) no-repeat;

				}
			#main_nav_list a#main_nav_item4 {
				   background: url(img3.png) no-repeat;

				}
				#main_nav_list a#main_nav_item4:hover {
				   background: url(img4.png) no-repeat;

				}
			#main_nav_list a#main_nav_item8 {
				   background: url(img5.png) no-repeat;

				}
				#main_nav_list a#main_nav_item8:hover {
				   background: url(img6.png) no-repeat;

				}
			#main_nav_list a#main_nav_item12 {
				   background: url(img7.png) no-repeat;

				}
				#main_nav_list a#main_nav_item12:hover {
				   background: url(img8.png) no-repeat;

				}
			#main_nav_list a.main_nav_active_item {
				   background: url(img52.png) no-repeat;

				}
			#main_nav_list a#main_nav_item18 {
				   background: url(img11.png) no-repeat;

				}
				#main_nav_list a#main_nav_item18:hover {
				   background: url(img12.png) no-repeat;

				}