X-Git-Url: http://git.asbjorn.biz/?a=blobdiff_plain;f=src%2Fcore.js;h=3389e83f79c5979dd48122cb16b6e328476893ff;hb=e1b940d74824282fd3466d39a8ab574da4ef6fc5;hp=2c2b7466622ab69cad829a27feecae4814d64147;hpb=6dfdb14753c66cfd38f8445bd6119ef4a1274d5e;p=jquery.git

diff --git a/src/core.js b/src/core.js
index 2c2b746..3389e83 100644
--- a/src/core.js
+++ b/src/core.js
@@ -33,6 +33,9 @@ var jQuery = function( selector, context ) {
 	// Check for non-word characters
 	rnonword = /\W/,
 
+	// Check for digits
+	rdigit = /\d/,
+
 	// Match a standalone tag
 	rsingleTag = /^<(\w+)\s*\/?>(?:<\/\1>)?$/,
 
@@ -91,7 +94,7 @@ jQuery.fn = jQuery.prototype = {
 		}
 		
 		// The body element only exists once, optimize finding it
-		if ( selector === "body" && !context ) {
+		if ( selector === "body" && !context && document.body ) {
 			this.context = document;
 			this[0] = document.body;
 			this.selector = "body";
@@ -397,7 +400,7 @@ jQuery.extend({
 		if ( !jQuery.readyWait || (wait !== true && !jQuery.isReady) ) {
 			// Make sure body exists, at least, in case IE gets a little overzealous (ticket #5443).
 			if ( !document.body ) {
-				return setTimeout( jQuery.ready, 13 );
+				return setTimeout( jQuery.ready, 1 );
 			}
 
 			// Remember that the DOM is ready
@@ -438,7 +441,7 @@ jQuery.extend({
 		// browser event has already occurred.
 		if ( document.readyState === "complete" ) {
 			// Handle it asynchronously to allow scripts the opportunity to delay ready
-			return setTimeout( jQuery.ready, 13 );
+			return setTimeout( jQuery.ready, 1 );
 		}
 
 		// Mozilla, Opera and webkit nightlies currently support this event
@@ -488,6 +491,10 @@ jQuery.extend({
 		return obj && typeof obj === "object" && "setInterval" in obj;
 	},
 
+	isNaN: function( obj ) {
+		return obj == null || !rdigit.test( obj ) || isNaN( obj );
+	},
+
 	type: function( obj ) {
 		return obj == null ?
 			String( obj ) :