diff --git a/src/event/event.js b/src/event/event.js
index cbad528f3..23dbd6fd4 100644
--- a/src/event/event.js
+++ b/src/event/event.js
@@ -578,8 +578,6 @@ jQuery.extend({
 	}
 });
 
-new function(){
-
 	/**
 	 * Bind a function to the scroll event of each matched element.
 	 *
@@ -976,5 +974,3 @@ new function(){
 
 	// A fallback to window.onload, that will always work
 	jQuery.event.add( window, "load", jQuery.ready );
-	
-};
diff --git a/src/intro.js b/src/intro.js
index 9204081a2..2e64f66c0 100644
--- a/src/intro.js
+++ b/src/intro.js
@@ -1,2 +1,2 @@
 // prevent execution of jQuery if included more than once
-if(typeof window.jQuery == "undefined") {
+if(typeof window.jQuery == "undefined") (function(){
diff --git a/src/jquery/jquery.js b/src/jquery/jquery.js
index 1d2e19797..8089e4e6b 100644
--- a/src/jquery/jquery.js
+++ b/src/jquery/jquery.js
@@ -9,9 +9,6 @@
  * $Rev$
  */
 
-// Global undefined variable
-window.undefined = window.undefined;
-
 /**
  * Create a new jQuery Object
  *
@@ -22,7 +19,7 @@ window.undefined = window.undefined;
  * @param jQuery|Element|Array<Element> c context
  * @cat Core
  */
-var jQuery = function(a,c) {
+window.jQuery = function(a,c) {
 	// If the context is global, return a new object
 	if ( window == this || !this.init )
 		return new jQuery(a,c);
@@ -35,7 +32,7 @@ if ( typeof $ != "undefined" )
 	jQuery._$ = $;
 	
 // Map the jQuery namespace to the '$' one
-var $ = jQuery;
+window.$ = jQuery;
 
 /**
  * This function accepts a string containing a CSS or
@@ -1527,7 +1524,7 @@ jQuery.extend({
 		}
 		
 		if (prop.match(/float/i))
-			prop = jQuery.styleFloat;
+			prop = styleFloat;
 
 		if (!force && elem.style[prop])
 			ret = elem.style[prop];
@@ -1940,29 +1937,31 @@ jQuery.extend({
  * @type Boolean
  * @cat JavaScript
  */
-new function() {
-	var b = navigator.userAgent.toLowerCase();
+var userAgent = navigator.userAgent.toLowerCase();
 
-	// Figure out what browser is being used
-	jQuery.browser = {
-		version: (b.match(/.+(?:rv|it|ra|ie)[\/: ]([\d.]+)/) || [])[1],
-		safari: /webkit/.test(b),
-		opera: /opera/.test(b),
-		msie: /msie/.test(b) && !/opera/.test(b),
-		mozilla: /mozilla/.test(b) && !/(compatible|webkit)/.test(b)
-	};
+// Figure out what browser is being used
+jQuery.browser = {
+	version: (userAgent.match(/.+(?:rv|it|ra|ie)[\/: ]([\d.]+)/) || [])[1],
+	safari: /webkit/.test(userAgent),
+	opera: /opera/.test(userAgent),
+	msie: /msie/.test(userAgent) && !/opera/.test(userAgent),
+	mozilla: /mozilla/.test(userAgent) && !/(compatible|webkit)/.test(userAgent)
+};
 
+var styleFloat = jQuery.browser.msie ? "styleFloat" : "cssFloat";
+	
+jQuery.extend({
 	// Check to see if the W3C box model is being used
-	jQuery.boxModel = !jQuery.browser.msie || document.compatMode == "CSS1Compat";
-
-	jQuery.styleFloat = jQuery.browser.msie ? "styleFloat" : "cssFloat";
-
-	jQuery.props = {
+	boxModel: !jQuery.browser.msie || document.compatMode == "CSS1Compat",
+	
+	styleFloat: jQuery.browser.msie ? "styleFloat" : "cssFloat",
+	
+	props: {
 		"for": "htmlFor",
 		"class": "className",
-		"float": jQuery.styleFloat,
-		cssFloat: jQuery.styleFloat,
-		styleFloat: jQuery.styleFloat,
+		"float": styleFloat,
+		cssFloat: styleFloat,
+		styleFloat: styleFloat,
 		innerHTML: "innerHTML",
 		className: "className",
 		value: "value",
@@ -1971,9 +1970,8 @@ new function() {
 		readonly: "readOnly",
 		selected: "selected",
 		maxlength: "maxLength"
-	};
-
-};
+	}
+});
 
 /**
  * Get a set of elements containing the unique parents of the matched
diff --git a/src/outro.js b/src/outro.js
index 5c34318c2..0319a0fe5 100644
--- a/src/outro.js
+++ b/src/outro.js
@@ -1 +1 @@
-}
+})();
diff --git a/src/selector/selector.js b/src/selector/selector.js
index 34aaf61e5..f2c224a02 100644
--- a/src/selector/selector.js
+++ b/src/selector/selector.js
@@ -1,3 +1,11 @@
+
+var chars = jQuery.browser.safari && parseInt(jQuery.browser.version) < 417 ?
+		"(?:[\\w*_-]|\\\\.)" :
+		"(?:[\\w\u0128-\uFFFF*_-]|\\\\.)",
+	quickChild = new RegExp("^[/>]\\s*(" + chars + "+)"),
+	quickID = new RegExp("^(" + chars + "+)(#)(" + chars + "+)"),
+	quickClass = new RegExp("^([#.]?)(" + chars + "*)");
+
 jQuery.extend({
 	expr: {
 		"": "m[2]=='*'||jQuery.nodeName(a,m[2])",
@@ -62,8 +70,7 @@ jQuery.extend({
 		/^(:)([\w-]+)\("?'?(.*?(\(.*?\))?[^(]*?)"?'?\)/,
 
 		// Match: :even, :last-chlid, #id, .class
-		new RegExp("^([:.#]*)(" + 
-			( jQuery.chars = jQuery.browser.safari && parseInt(jQuery.browser.version) < 417 ? "(?:[\\w*_-]|\\\\.)" : "(?:[\\w\u0128-\uFFFF*_-]|\\\\.)" ) + "+)")
+		new RegExp("^([:.#]*)(" + chars + "+)")
 	],
 
 	multiFilter: function( expr, elems, not ) {
@@ -125,7 +132,7 @@ jQuery.extend({
 
 			// An attempt at speeding up child selectors that
 			// point to a specific element tag
-			var re = new RegExp("^[/>]\\s*(" + jQuery.chars + "+)");
+			var re = quickChild;
 			var m = re.exec(t);
 
 			if ( m ) {
@@ -194,7 +201,7 @@ jQuery.extend({
 
 				} else {
 					// Optimize for the case nodeName#idName
-					var re2 = new RegExp("^(" + jQuery.chars + "+)(#)(" + jQuery.chars + "+)");
+					var re2 = quickID;
 					var m = re2.exec(t);
 					
 					// Re-organize the results, so that they're consistent
@@ -204,7 +211,7 @@ jQuery.extend({
 					} else {
 						// Otherwise, do a traditional filter check for
 						// ID, class, and element selectors
-						re2 = new RegExp("^([#.]?)(" + jQuery.chars + "*)");
+						re2 = quickClass;
 						m = re2.exec(t);
 					}