/* portrait */
#mainnav .n1, #mainnav .n1_a { background-image:url("../pix/nav/portrait.gif"); }
/* produits */
#mainnav .n2, #mainnav .n2_a { background-image:url("../pix/nav/produits.gif"); }
/* services */
#mainnav .n3, #mainnav .n3_a { background-image:url("../pix/nav/services.gif"); }
/* actions/actualites */
#mainnav .n4, #mainnav .n4_a { background-image:url("../pix/nav/actions.gif"); }
/* conseil medical */
#mainnav .n5, #mainnav .n5_a { background-image:url("../pix/nav/conseil.gif"); }
/* bon a savoir */
#mainnav .n6, #mainnav .n6_a { background-image:url("../pix/nav/bonasavoir.gif"); }

/* active navigation */
#mainnav .n1_a, #mainnav .n2_a, #mainnav .n3_a, #mainnav .n4_a, #mainnav .n5_a, #mainnav .n6_a { background-position:0px -48px !important; }