a.nav1{
	display:block; 
	width: 66px;
	height: 35px;
	background: url("images/homemenu-home.jpg") 0 0 no-repeat;
}

a.nav1:hover { 
	background-position: -66px 0;
}

a.nav2{
	display:block; 
	width: 66px;
	height: 35px;
	background: url("images/homemenu-about.jpg") 0 0 no-repeat;
}

a.nav2:hover { 
	background-position: -66px 0;
}

a.nav3{
	display:block; 
	width: 78px;
	height: 35px;
	background: url("images/homemenu-authors.jpg") 0 0 no-repeat;
}

a.nav3:hover { 
	background-position: -78px 0;
}

a.nav4{
	display:block; 
	width: 64px;
	height: 35px;
	background: url("images/homemenu-books.jpg") 0 0 no-repeat;
}

a.nav4:hover { 
	background-position: -64px 0;
}

a.nav5{
	display:block; 
	width: 106px;
	height: 35px;
	background: url("images/homemenu-conferences.jpg") 0 0 no-repeat;
}

a.nav5:hover { 
	background-position: -106px 0;
}

a.nav6{
	display:block; 
	width: 81px;
	height: 35px;
	background: url("images/homemenu-contests.jpg") 0 0 no-repeat;
}

a.nav6:hover { 
	background-position: -81px 0;
}

a.nav7{
	display:block; 
	width: 107px;
	height: 35px;
	background: url("images/homemenu-submissions.jpg") 0 0 no-repeat;
}

a.nav7:hover { 
	background-position: -107px 0;
}

a.nav8{
	display:block; 
	width: 77px;
	height: 35px;
	background: url("images/menuhome-contact.jpg") 0 0 no-repeat;
}

a.nav8:hover { 
	background-position: -77px 0;
}

a.nav9{
	display:block; 
	width: 63px;
	height: 35px;
	background: url("images/homemenu-login.jpg") 0 0 no-repeat;
}

a.nav9:hover { 
	background-position: -63px 0;
}

a.nav10{
	display:block; 
	width: 66px;
	height: 37px;
	background: url("images/contentmenu-home.jpg") 0 0 no-repeat;
}

a.nav10:hover { 
	background-position: -66px 0;
}

a.nav11{
	display:block; 
	width: 66px;
	height: 37px;
	background: url("images/contentmenu-about.jpg") 0 0 no-repeat;
}

a.nav11:hover { 
	background-position: -66px 0;
}

a.nav12{
	display:block; 
	width: 78px;
	height: 37px;
	background: url("images/contentmenu-authors.jpg") 0 0 no-repeat;
}

a.nav12:hover { 
	background-position: -78px 0;
}

a.nav13{
	display:block; 
	width: 64px;
	height: 37px;
	background: url("images/contentmenu-books.jpg") 0 0 no-repeat;
}

a.nav13:hover { 
	background-position: -64px 0;
}

a.nav14{
	display:block; 
	width: 106px;
	height: 37px;
	background: url("images/contentmenu-conferences.jpg") 0 0 no-repeat;
}

a.nav14:hover { 
	background-position: -106px 0;
}

a.nav15{
	display:block; 
	width: 81px;
	height: 37px;
	background: url("images/contentmenu-contests.jpg") 0 0 no-repeat;
}

a.nav15:hover { 
	background-position: -81px 0;
}

a.nav16{
	display:block; 
	width: 107px;
	height: 37px;
	background: url("images/contentmenu-submissions.jpg") 0 0 no-repeat;
}

a.nav16:hover { 
	background-position: -107px 0;
}

a.nav17{
	display:block; 
	width: 77px;
	height: 37px;
	background: url("images/contentmenu-contact.jpg") 0 0 no-repeat;
}

a.nav17:hover { 
	background-position: -77px 0;
}

a.nav18{
	display:block; 
	width: 62px;
	height: 37px;
	background: url("images/contentmenu-login.jpg") 0 0 no-repeat;
}

a.nav18:hover { 
	background-position: -62px 0;
}