From d8d77596136af39ddc591fa8b324019919e76aea Mon Sep 17 00:00:00 2001
From: Tim Tucker <tim@timtucker.com>
Date: Fri, 31 Aug 2012 18:32:01 -0300
Subject: [PATCH 1/4] Update media/src/ext/ext.paging.js

Use hasChildNodes() rather than childNodes.length

See the following jsperf test for the difference in performance:
http://jsperf.com/haschildnodes-vs-childnodes-length
---
 media/src/ext/ext.paging.js | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/media/src/ext/ext.paging.js b/media/src/ext/ext.paging.js
index ca001692..b1e31a55 100644
--- a/media/src/ext/ext.paging.js
+++ b/media/src/ext/ext.paging.js
@@ -1,4 +1,3 @@
-
 /*
  * Variable: oPagination
  * Purpose:  
@@ -223,7 +222,7 @@ $.extend( DataTable.ext.oPagination, {
 			/* Loop over each instance of the pager */
 			for ( i=0, iLen=an.length ; i<iLen ; i++ )
 			{
-				if ( an[i].childNodes.length === 0 )
+				if ( !an[i].hasChildNodes() )
 				{
 					continue;
 				}

From 0c0fef65c10297bd407675899dbe409606d5d718 Mon Sep 17 00:00:00 2001
From: Tim Tucker <tim@timtucker.com>
Date: Fri, 31 Aug 2012 18:35:00 -0300
Subject: [PATCH 2/4] Update media/src/ext/ext.paging.js

Replace childNodes.length check with hasChildNodes() in one more place
---
 media/src/ext/ext.paging.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/media/src/ext/ext.paging.js b/media/src/ext/ext.paging.js
index b1e31a55..3540ff1e 100644
--- a/media/src/ext/ext.paging.js
+++ b/media/src/ext/ext.paging.js
@@ -76,7 +76,7 @@ $.extend( DataTable.ext.oPagination, {
 			/* Loop over each instance of the pager */
 			for ( var i=0, iLen=an.length ; i<iLen ; i++ )
 			{
-				if ( an[i].childNodes.length !== 0 )
+				if ( an[i].hasChildNodes() )
 				{
 					an[i].childNodes[0].className = ( oSettings._iDisplayStart === 0 ) ? 
 						oClasses.sPagePrevDisabled : oClasses.sPagePrevEnabled;

From 55b8e6fd04297ad3ced08e70abed30c75609d5db Mon Sep 17 00:00:00 2001
From: Tim Tucker <tim@timtucker.com>
Date: Fri, 31 Aug 2012 18:43:38 -0300
Subject: [PATCH 3/4] Update media/src/ext/ext.paging.js

Use a different approach that caches nodes
(may actually minify better as well)
---
 media/src/ext/ext.paging.js | 17 +++++++++++------
 1 file changed, 11 insertions(+), 6 deletions(-)

diff --git a/media/src/ext/ext.paging.js b/media/src/ext/ext.paging.js
index 3540ff1e..2d6ccce6 100644
--- a/media/src/ext/ext.paging.js
+++ b/media/src/ext/ext.paging.js
@@ -72,17 +72,22 @@ $.extend( DataTable.ext.oPagination, {
 			
 			var oClasses = oSettings.oClasses;
 			var an = oSettings.aanFeatures.p;
+			var nNode;
 
 			/* Loop over each instance of the pager */
 			for ( var i=0, iLen=an.length ; i<iLen ; i++ )
 			{
-				if ( an[i].hasChildNodes() )
+				nNode = an[i].firstChild;
+				if ( nNode )
 				{
-					an[i].childNodes[0].className = ( oSettings._iDisplayStart === 0 ) ? 
-						oClasses.sPagePrevDisabled : oClasses.sPagePrevEnabled;
-					
-					an[i].childNodes[1].className = ( oSettings.fnDisplayEnd() == oSettings.fnRecordsDisplay() ) ? 
-						oClasses.sPageNextDisabled : oClasses.sPageNextEnabled;
+					/* Previous page */
+					nNode.className = ( oSettings._iDisplayStart === 0 ) ?
+					    oClasses.sPagePrevDisabled : oClasses.sPagePrevEnabled;
+					    
+					/* Next page */
+					nNode = nNode.nextSibling;
+					nNode.className = ( oSettings.fnDisplayEnd() == oSettings.fnRecordsDisplay() ) ?
+					    oClasses.sPageNextDisabled : oClasses.sPageNextEnabled;
 				}
 			}
 		}

From 30eb6f04265534db1e8b6bbe42bac26c5d9bd637 Mon Sep 17 00:00:00 2001
From: Tim Tucker <tim@timtucker.com>
Date: Fri, 31 Aug 2012 18:48:15 -0300
Subject: [PATCH 4/4] Update media/src/ext/ext.paging.js

Cache node
---
 media/src/ext/ext.paging.js | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/media/src/ext/ext.paging.js b/media/src/ext/ext.paging.js
index 2d6ccce6..4183646a 100644
--- a/media/src/ext/ext.paging.js
+++ b/media/src/ext/ext.paging.js
@@ -176,7 +176,7 @@ $.extend( DataTable.ext.oPagination, {
 			var sList = "";
 			var iStartButton, iEndButton, i, iLen;
 			var oClasses = oSettings.oClasses;
-			var anButtons, anStatic, nPaginateList;
+			var anButtons, anStatic, nPaginateList, nNode;
 			var an = oSettings.aanFeatures.p;
 			var fnBind = function (j) {
 				oSettings.oApi._fnBindAction( this, {"page": j+iStartButton-1}, function(e) {
@@ -227,18 +227,19 @@ $.extend( DataTable.ext.oPagination, {
 			/* Loop over each instance of the pager */
 			for ( i=0, iLen=an.length ; i<iLen ; i++ )
 			{
-				if ( !an[i].hasChildNodes() )
+				nNode = an[i];
+				if ( !nNode.hasChildNodes() )
 				{
 					continue;
 				}
 				
 				/* Build up the dynamic list first - html and listeners */
-				$('span:eq(0)', an[i])
+				$('span:eq(0)', nNode)
 					.html( sList )
 					.children('a').each( fnBind );
 				
 				/* Update the permanent button's classes */
-				anButtons = an[i].getElementsByTagName('a');
+				anButtons = nNode.getElementsByTagName('a');
 				anStatic = [
 					anButtons[0], anButtons[1], 
 					anButtons[anButtons.length-2], anButtons[anButtons.length-1]