Landing pull request 553. Fallback to elem.style for disconnected nodes in...

Landing pull request 553. Fallback to elem.style for disconnected nodes in width/height retrieval. Fixes #8388.

More Details:
 - https://github.com/jquery/jquery/pull/553
 - http://bugs.jquery.com/ticket/10254
 - http://bugs.jquery.com/ticket/8388

src/css.js

@@ -290,6 +290,10 @@ if ( document.documentElement.currentStyle ) {
 			rsLeft = elem.runtimeStyle && elem.runtimeStyle[ name ],
 			style = elem.style;
 
+		if ( ret === null && style ) {
+			ret = style[ name ];
+		}
+
 		// From the awesome hack by Dean Edwards
 		// http://erik.eae.net/archives/2007/07/27/18.54.15/#comment-102291
 

test/unit/css.js

@@ -502,6 +502,15 @@ test("widows & orphans #8936", function () {
 	$p.remove();
 });
 
+test("can't get css for disconnected in IE<9, see #10254 and #8388", function() {
+	expect( 2 );
+	var span = jQuery( "<span/>" ).css( "background-image", "url(http://static.jquery.com/files/rocker/images/logo_jquery_215x53.gif)" );
+	equal( span.css( "background-image" ), "url(http://static.jquery.com/files/rocker/images/logo_jquery_215x53.gif)", "can't get background-image in IE<9, see #10254" );
+
+	var div = jQuery( "<div/>" ).css( "top", 10 );
+	equal( div.css( "top" ), "10px", "can't get top in IE<9, see #8388" );
+});
+
 test("Do not append px to 'fill-opacity' #9548", 1, function() {
 
 	var $div = jQuery("<div>").appendTo("#qunit-fixture");