X-Git-Url: http://git.asbjorn.biz/?a=blobdiff_plain;f=src%2Fselector.js;h=59ca2f6d5c5c542ad304461faecfb425cf905064;hb=04977b8ea2f9cbf786ae244a8b47aed67e37df7f;hp=682a92ebe1dc44afe36a56202ad08a7854466a42;hpb=8e8d7ade434de3d79cc6145f370866f297a07b54;p=jquery.git

diff --git a/src/selector.js b/src/selector.js
index 682a92e..59ca2f6 100644
--- a/src/selector.js
+++ b/src/selector.js
@@ -700,7 +700,7 @@ try {
 
 	// Check to see if an attribute returns normalized href attributes
 	div.innerHTML = "<a href='#'></a>";
-	if ( div.firstChild.getAttribute("href") !== "#" ) {
+	if ( div.firstChild && div.firstChild.getAttribute("href") !== "#" ) {
 		Expr.attrHandle.href = function(elem){
 			return elem.getAttribute("href", 2);
 		};
@@ -809,8 +809,8 @@ var contains = document.compareDocumentPosition ?  function(a, b){
 };
 
 var isXML = function(elem){
-	return elem.documentElement && !elem.body ||
-		elem.tagName && elem.ownerDocument && !elem.ownerDocument.body;
+	return elem.nodeType === 9 && elem.documentElement.nodeName !== "HTML" ||
+		!!elem.ownerDocument && isXML( elem.ownerDocument );
 };
 
 var posProcess = function(selector, context){