.nav ul li#portfolio a{ width:100px;}
.nav ul li#about a{ width:75px;}
.nav ul li#contact a{ width:104px;}
.nav ul li#service a{ width:102px;}
.nav ul li#comment a{ width:142px;}
.nav ul li#portfolio a:hover{background:url(/item1_en.gif) no-repeat;}
.nav ul li#about a:hover{background:url(/item2_en.gif) no-repeat;}
.nav ul li#contact a:hover{background:url(/item3_en.gif) no-repeat;}
.nav ul li#service a:hover{background:url(/item4_en.gif) no-repeat;}
.nav ul li#comment a:hover{background:url(/item5_en.gif) no-repeat;}
.nav ul li#portfolio.active a{background:url(/item1_en.gif) no-repeat 0 -43px!important;}
.nav ul li#about.active a{background:url(/item2_en.gif) no-repeat 0 -43px!important;}
.nav ul li#contact.active a{background:url(/item3_en.gif) no-repeat 0 -43px!important;}
.nav ul li#service.active a{background:url(/item4_en.gif) no-repeat 0 -43px!important;}
.nav ul li#comment.active a{background:url(/item5_en.gif) no-repeat 0 -43px!important;}