/*#grobal-nav{
	background:url("../img/top_menu.png") top left no-repeat;
}*/
#a-class a {
	background:url("../images/top_menu.png") top left no-repeat;
	width:233px;
	height:20px;
	background-position:-5px -5px;
	text-indent: -9999px;
	display: block;
	margin-left: 8px;
}
#a-class a:hover {
	width:233px;
	height:20px;
	background-position:-5px -108px;
}

#b-class a {
	background:url("../images/top_menu.png") top left no-repeat;
	width:241px;
	height:20px;
	background-position:-5px -134px;
	text-indent: -9999px;
	display: block;
}
#b-class a:hover {
	width:241px;
	height:20px;
	background-position:-5px -159px;
}

#c-class a {
	background:url("../images/top_menu.png") top left no-repeat;
	width:240px;
	height:20px;
	background-position:-5px -184px;
	text-indent: -9999px;
	display: block;
	margin-left: 1px;
}
#c-class a:hover {
	width:240px;
	height:20px;
	background-position:-5px -31px;
}

#d-class a {
	background:url("../images/top_menu.png") top left no-repeat;
	width:184px;
	height:20px;
	background-position:-5px -57px;
	text-indent: -9999px;
	display: block;
	margin-left: 57px;
}
#d-class a:hover {
	width:184px;
	height:20px;
	background-position:-5px -83px;
}

#e-class a {
	background:url("../images/top_menu.png") top left no-repeat;
	width:187px;
	height:20px;
	background-position:-5px -209px;
	text-indent: -9999px;
	display: block;
	margin-left: 54px;
}
#e-class a:hover {
	width:187px;
	height:20px;
	background-position:-5px -233px;
}
.teacher {
	text-align: right;
}
.teacher a {
	color: #CD247E;
	text-decoration: none;
}
.teacher a:hover {
	text-decoration: underline;
	color: #B0D002;
}