diff --git a/src/ajax.js b/src/ajax.js
old mode 100644
new mode 100755
index 7b15a1d80f..295af677e3
--- a/src/ajax.js
+++ b/src/ajax.js
@@ -1,7 +1,7 @@
 var jsc = now(),
-	rscript = /<script(.|\s)*?\/script>/gi,
-	rselectTextarea = /select|textarea/i,
-	rinput = /color|date|datetime|email|hidden|month|number|password|range|search|tel|text|time|url|week/i,
+	rscript = /<script[\s\S]+?<\/script[^>]*>/gi,
+	rselectTextarea = /^(?:select|textarea)$/i,
+	rinput = /^(?:color|date(?:time)?|email|hidden|month|number|password|range|search|t(?:el|ext|ime)|url|week)$/i,
 	jsre = /=\?(&|$)/,
 	rquery = /\?/,
 	rts = /(\?|&)_=.*?(&|$)/,
diff --git a/src/attributes.js b/src/attributes.js
old mode 100644
new mode 100755
index 4f7055a6e4..549aff75f2
--- a/src/attributes.js
+++ b/src/attributes.js
@@ -1,11 +1,11 @@
 var rclass = /[\n\t]/g,
 	rspace = /\s+/,
 	rreturn = /\r/g,
-	rspecialurl = /href|src|style/,
-	rtype = /(button|input)/i,
-	rfocusable = /(button|input|object|select|textarea)/i,
+	rspecialurl = /^(?:href|src|style)$/,
+	rtype = /^(button|input)$/i,
+	rfocusable = /^(button|input|object|select|textarea)$/i,
 	rclickable = /^(a|area)$/i,
-	rradiocheck = /radio|checkbox/;
+	rradiocheck = /^(?:radio|checkbox)$/;
 
 jQuery.fn.extend({
 	attr: function( name, value ) {
diff --git a/src/core.js b/src/core.js
old mode 100644
new mode 100755
index ba5d7f5288..4110191233
--- a/src/core.js
+++ b/src/core.js
@@ -21,13 +21,13 @@ var jQuery = function( selector, context ) {
 	quickExpr = /^[^<]*(<[\w\W]+>)[^>]*$|^#([\w-]+)$/,
 
 	// Is it a simple selector
-	isSimple = /^.[^:#\[\.,]*$/,
+	isSimple = /^.[^:#\[.,]*$/,
 
 	// Check if a string has a non-whitespace character in it
 	rnotwhite = /\S/,
 
 	// Used for trimming whitespace
-	rtrim = /^(\s|\u00A0)+|(\s|\u00A0)+$/g,
+	rtrim = /^[\s\u00A0]+|[\s\u00A0]+$/g,
 
 	// Match a standalone tag
 	rsingleTag = /^<(\w+)\s*\/?>(?:<\/\1>)?$/,
diff --git a/src/css.js b/src/css.js
old mode 100644
new mode 100755
index 5d31757b05..9fb7be9652
--- a/src/css.js
+++ b/src/css.js
@@ -1,5 +1,5 @@
 // exclude the following css properties to add px
-var rexclude = /z-?index|font-?weight|opacity|zoom|line-?height/i,
+var rexclude = /^(?:z-?index|font-?weight|opacity|zoom|line-?height)$/i,
 	ralpha = /alpha\([^)]*\)/,
 	ropacity = /opacity=([^)]*)/,
 	rfloat = /float/i,
diff --git a/src/effects.js b/src/effects.js
old mode 100644
new mode 100755
index 7fa7342088..16da98e40d
--- a/src/effects.js
+++ b/src/effects.js
@@ -1,5 +1,5 @@
 var elemdisplay = {},
-	rfxtypes = /toggle|show|hide/,
+	rfxtypes = /^(?:toggle|show|hide)$/,
 	rfxnum = /^([+-]=)?([\d+-.]+)(.*)$/,
 	timerId,
 	fxAttrs = [
diff --git a/src/event.js b/src/event.js
old mode 100644
new mode 100755
index d91231e868..1716cc7c3c
--- a/src/event.js
+++ b/src/event.js
@@ -687,7 +687,7 @@ if ( !jQuery.support.submitBubbles ) {
 // change delegation, happens here so we have bind.
 if ( !jQuery.support.changeBubbles ) {
 
-	var formElems = /textarea|input|select/i,
+	var formElems = /^(?:textarea|input|select)$/i,
 
 	changeFilters,
 
diff --git a/src/manipulation.js b/src/manipulation.js
old mode 100644
new mode 100755
index 196f230720..7e1ed2cbdf
--- a/src/manipulation.js
+++ b/src/manipulation.js
@@ -5,7 +5,7 @@ var rinlinejQuery = / jQuery\d+="(?:\d+|null)"/g,
 	rtagName = /<([\w:]+)/,
 	rtbody = /<tbody/i,
 	rhtml = /<|&#?\w+;/,
-	rnocache = /<script|<object|<embed|<option|<style/i,
+	rnocache = /<(?:s(?:cript|tyle)|o(?:bject|ption)|embed)/i,
 	rchecked = /checked\s*(?:[^=]|=\s*.checked.)/i,  // checked="checked" or checked (html5)
 	fcloseTag = function( all, front, tag ) {
 		return rselfClosing.test( tag ) ?