.nav ul li#portfolio a{ width:131px;}
.nav ul li#about a{ width:81px;}
.nav ul li#contact a{ width:113px;}
.nav ul li#service a{ width:87px;}
.nav ul li#comment a{ width:99px;}
.nav ul li#portfolio a:hover{background:url(/item1.gif) no-repeat;}
.nav ul li#about a:hover{background:url(/item2.gif) no-repeat;}
.nav ul li#contact a:hover{background:url(/item3.gif) no-repeat;}
.nav ul li#service a:hover{background:url(/item4.gif) no-repeat;}
.nav ul li#comment a:hover{background:url(/item5.gif) no-repeat;}
.nav ul li#portfolio.active a{background:url(/item1.gif) no-repeat 0 -43px!important;}
.nav ul li#about.active a{background:url(/item2.gif) no-repeat 0 -43px!important;}
.nav ul li#contact.active a{background:url(/item3.gif) no-repeat 0 -43px!important;}
.nav ul li#service.active a{background:url(/item4.gif) no-repeat 0 -43px!important;}
.nav ul li#comment.active a{background:url(/item5.gif) no-repeat 0 -43px!important;}