li#bt1 a:link{
	width: 103px;
	height: 45px;
	background: url(../images/main_bt1.png) no-repeat 0 -90px;
	margin-left: 75px;
	margin-right: 107px;
	}

li#bt1 a:visited{
	width: 103px;
	height: 45px;
	background: url(../images/main_bt1.png) no-repeat 0 -90px;
	margin-left: 75px;
	margin-right: 107px;
	}

li#bt1 a:hover{
	width: 103px;
	height: 45px;
	background: url(../images/main_bt1.png) no-repeat 0 -90px;
	margin-left: 75px;
	margin-right: 107px;
	}

li#bt1 a:active{
	width: 103px;
	height: 45px;
	background: url(../images/main_bt1.png) no-repeat 0 -90px;
	margin-left: 75px;
	margin-right: 107px;
	}