div.nav { background-image: url('../img/grey/content-border-top.png'); background-repeat: repeat-x; }
div.nav b.tl { background-image: url('../img/grey/content-corner-tl.png'); top: 6px; }
div.nav b.tr { background-image: url('../img/grey/content-corner-tr.png'); float: right; top: 7px;}
div.nav b.bl { background-image: url('../img/grey/content-corner-bl.png'); }
div.nav b.br { background-image: url('../img/grey/content-corner-br.png'); float: right;}

div.main div.leftborder { background-image: url('../img/grey/content-border-left.png'); }
div.main div.rightborder { background-image: url('../img/grey/content-border-right.png'); }
div.mainbottom { background-image: url('../img/grey/content-border-bottom.png'); }
div.mainbottom b.bl { background-image: url('../img/grey/content-corner-bl.png'); }
div.mainbottom b.br { background-image: url('../img/grey/content-corner-br.png'); }