.button{
	float:left;
	height:20px;
	width:400px;
	padding-top:5px;
	padding-left:5px;
	padding-right:5px;
	background-image:url(/image/button_hg.gif);
	color:#0000ff;
	font-weight:bold; 
	text-align:center;
}

.button:hover{
	height:20px;
	width:400px;
	padding-top:5px;
	padding-left:5px;
	padding-right:5px;
	background-image:url(/image/button_hg_out.gif);
	color:#0000ff;
	font-weight:bold;
	text-align:center;
}