#nav .button_1 { background: url(../img/buttons/1.png) no-repeat top left; }
#nav .button_2 { background: url(../img/buttons/2.png) no-repeat top left; }
#nav .button_3 { background: url(../img/buttons/3.png) no-repeat top left; }
#nav .button_4 { background: url(../img/buttons/4.png) no-repeat top left; }
#nav .button_5 { background: url(../img/buttons/5.png) no-repeat top left; }
#nav .button_6 { background: url(../img/buttons/6.png) no-repeat top left; }
#nav .button_7 { background: url(../img/buttons/7.png) no-repeat top left; }
#nav .button_8 { background: url(../img/buttons/7.png) no-repeat top left; }
#nav .button_9 { background: url(../img/buttons/7.png) no-repeat top left; }
#nav .button_10 { background: url(../img/buttons/7.png) no-repeat top left; }
#nav .button_11 { background: url(../img/buttons/7.png) no-repeat top left; }
#nav .button_12 { background: url(../img/buttons/7.png) no-repeat top left; }
#nav .button_13 { background: url(../img/buttons/7.png) no-repeat top left; }
#nav .button_14 { background: url(../img/buttons/7.png) no-repeat top left; }
#nav .button_15 { background: url(../img/buttons/7.png) no-repeat top left; }
#nav .button_16 { background: url(../img/buttons/7.png) no-repeat top left; }
#nav .button_17 { background: url(../img/buttons/7.png) no-repeat top left; }
#nav .button_18 { background: url(../img/buttons/7.png) no-repeat top left; }
#nav .button_19 { background: url(../img/buttons/7.png) no-repeat top left; }
#subnav .button_1 { background: url(../img/buttons_subnav/1.png) no-repeat top left; }
#subnav .button_2 { background: url(../img/buttons_subnav/2.png) no-repeat top left; }
#subnav .button_3 { background: url(../img/buttons_subnav/2.png) no-repeat top left; }
#subnav .button_4 { background: url(../img/buttons_subnav/2.png) no-repeat top left; }
#subnav .button_5 { background: url(../img/buttons_subnav/2.png) no-repeat top left; }
#subnav .button_6 { background: url(../img/buttons_subnav/2.png) no-repeat top left; }
#subnav .button_7 { background: url(../img/buttons_subnav/2.png) no-repeat top left; }
#subnav .button_8 { background: url(../img/buttons_subnav/2.png) no-repeat top left; }
#subnav .button_9 { background: url(../img/buttons_subnav/2.png) no-repeat top left; }