.button_x
{
	position:relative;
	width:140px;
	height:36px;
	background-image:url(img/menu_btn.jpg);
	background-repeat:no-repeat;
	left:40px;
	font-size:16px;
	font-weight:bold;
	text-align:center;
	padding-top:5px;
	padding-left:0px;
	
}
#but_0 {top:60px;}
#but_1 {top:70px;}
#but_2 {top:80px;}
#but_3 {top:90px;}
#but_4 {top:100px;}