header { 
	background-image: url(../../images/headers/hdr_aurora.jpg); 
	-webkit-background-size: cover ; 
	-moz-background-size: cover; 
	-o-background-size: cover; 
	background-size: cover;
	filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='.myBackground.jpg', sizingMethod='scale');
	-ms-filter: "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='myBackground.jpg', sizingMethod='scale')";
}