#content .column1 ul li a{
	display: block;
	background-image: url(../images/nav_01.jpg);
	background-repeat: no-repeat;
	background-position: left top;
	width: 272px;
	height: 155px;	
	text-indent:-9999px;
}

#content .column1 ul li a.but1{
	background-image: url(../images/nav_02.jpg);
	height: 118px;		
}
#content .column1 ul li a.but2{
	background-image: url(../images/nav_03.jpg);
	height: 120px;	
}
#content .column1 ul li a.but3{
	background-image: url(../images/nav_04.jpg);
	height: 116px;	
}
#content .column1 ul li a.but4{
	background-image: url(../images/nav_05.gif);
	height: 126px;	
}