b.bt, b.bt b, b.bb, b.bb b
{
	background: url(../images/grey.gif) no-repeat;
	display: block;
	font-size: 1px;
	height: 10px;
	position: relative;
}
b.bt
{
	left: -3px;
	top: -3px;
}
b.bt b
{
	background-position: 100% -10px;
	left: 6px;
}
b.bb
{
	background-position: 0 -20px;
	left: -3px;
	top: 3px;
}
b.bb b
{
	background-position: 100% -30px;
	left: 6px;
}
#grey_border
{
	border: #ddd 3px solid;
}