.map_title{ width:640px;_width:670px; height:48px; margin:0 auto;  background:#F5F8FD; /*background:url(../images/sn_map_ws_002.gif) repeat-y right;*/}

.map_main{ width:640px;_width:678px; margin:0 auto; margin-top:15px; /*background:yellow*/}

.map_left{ width:75px; height:27px; margin:0 auto; background:url(../images/sn_m_01.gif) no-repeat; float:left; line-height:27px;}

.map_nav{ width:563px;_width:600px; height:30px; margin:0 auto; float:right; background:#F5F8FD; border:1px solid #D8E4F7; line-height:27px;}

.map_logo{ width:195px; height:48px; background:url(../images/map.gif) no-repeat;}