.sf_main_header {  background-image: none; }
.sf_extra3 { background-image: url(images/bg_mvis.jpg);
 }
.sf_extra4 span { background-image: url(images/bg_7xax.jpg);
 }
.sf_extra2 { background-image: url(images/bg_herw.jpg);
 }
.sf_navigation ul li a {  background-image: none; }