.nav-menu .tab a{
		background: url('../images/tab.png') no-repeat;
		height: 30px;
		width: 86px;
		float: left;
		margin: 1px 2px;
		color: #fff;
		text-align: center;
		line-height: 30px;
		text-decoration: none;
}

*html .nav-menu .tab a { 
		background-image: none; 
		filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='images/tab.png', sizingMethod='crop'); 
}

.nav-menu .tab a:hover{
		background: url('../images/tab.png') no-repeat;
		height: 30px;
		width: 86px;
		float: left;
		margin: 1px 2px;
		color: #fff;
		text-align: center;
		line-height: 30px;
}

*html .nav-menu .tab a:hover { 
		background-image: none; 
		filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='images/tab.png', sizingMethod='crop'); 
}