div.expandable_tab
{
	margin: auto 0px 5px auto ;
	width:200px;
	background-color:#000000;
	color:#ffffff;
	text-align:center;
} 

div.expandable_tab:hover {
	text-decoration: underline;
	cursor: hand; cursor: pointer;
}

div.expandable
{
	width:990px;
	padding:4px;
	border: 1px solid black;
	//background-color:#ffffff;
	display:none;
}