div, ul, li { margin: 0; padding: 0; border: 0; }
ul, li { list-style-type: none; text-transform: capitalize; }
.nav { width:732px; float:left; font-size:15px; position: relative; z-index: 1; }
    .nav a { text-decoration: none; }
.navmain { height: 41px; position: relative; }

#nav_all { height: 41px; float: left; line-height: 41px; position: relative; z-index: 222; }
    #nav_all li { text-align: center; float: left; }
        #nav_all li a { color: #639ACA; display: inline-block; font-size: 14px; font-weight: bold; cursor: pointer;  height: 42px; line-height: 42px; white-space: nowrap; }
            #nav_all li a:hover { background: url(../images/t_20.jpg) repeat-x; height:41px; line-height:41px; overflow: hidden; }
        
		
		#nav_all li ul { display: none; position: absolute; z-index: 99; top: 42px;  background: #e6e6e6;}
    #nav_all ul li { background-image: none; line-height: 51px; height:51px; padding-top: 0px; padding: 0; }
        #nav_all ul li a { background-image: none;  margin: 0px; height:51px; line-height: 51px; color: #fff; font-weight: normal; border: none; }
            #nav_all ul li a:hover { background-image: none;  margin: 0px auto; height: 32px; line-height: 32px; color: #FFF; background: #639ACA; border-top: none; }