From aab115e1322138de273c3e9c930d31095198ac4b Mon Sep 17 00:00:00 2001
From: Lucas Serven <lserven@gmail.com>
Date: Tue, 21 May 2013 16:11:07 -0400
Subject: [PATCH 1/4] Cleaned up code to prepare for updates

---
 js/rem.js     | 103 ++++++++++++++++++++++++++------------------------
 js/rem.min.js |  14 +++----
 2 files changed, 60 insertions(+), 57 deletions(-)

diff --git a/js/rem.js b/js/rem.js
index 3cb57e9..63a3650 100644
--- a/js/rem.js
+++ b/js/rem.js
@@ -1,5 +1,5 @@
 (function (window, undefined) {
-
+    "use strict";
     // test for REM unit support
     var cssremunit =  function() {
         var div = document.createElement( 'div' );
@@ -12,7 +12,7 @@
     isStyleSheet = function () {
         var styles = document.getElementsByTagName('link'),
             filteredStyles = [];
-        for (i = 0; i < styles.length; i++) {
+        for ( var i = 0; i < styles.length; i++) {
             if ( styles[i].rel.toLowerCase() === 'stylesheet' && !styles[i].hasAttribute('data-norem') ) {
                 filteredStyles.push( styles[i] );
             }
@@ -23,35 +23,35 @@
 
     processSheets = function () {
         var links = [];
-        sheets = isStyleSheet(); //search for link tags and confirm it's a stylesheet
-        sheets.og = sheets.length; //store the original length of sheets as a property
+        sheets = isStyleSheet(); // search for link tags and confirm it's a stylesheet
+        sheets.og = sheets.length; // store the original length of sheets as a property
         for( var i = 0; i < sheets.length; i++ ){
             links[i] = sheets[i].href;
-            xhr( links[i], matchcss, i );
+            xhr( links[i], matchCSS, i );
         }
     },
 
-    matchcss = function ( response, i ) { //collect all of the rules from the xhr response texts and match them to a pattern
+    matchCSS = function ( response, i ) { // collect all of the rules from the xhr response texts and match them to a pattern
         var clean = removeComments( response.responseText ),
-            pattern = /[\w\d\s\-\/\\\[\]:,.'"*()<>+~%#^$_=|]+\{[\w\d\s\-\/\\%#:;,.'"*()]+\d*\.{0,1}\d+rem[\w\d\s\-\/\\%#:;,.'"*()]*\}/g, //find selectors that use rem in one or more of their rules
+            pattern = /[\w\d\s\-\/\\\[\]:,.'"*()<>+~%#^$_=|@]+\{[\w\d\s\-\/\\%#:;,.'"*()]+\d*\.?\d+rem[\w\d\s\-\/\\%#:;,.'"*()]*\}/g, //find selectors that use rem in one or more of their rules
             current = clean.match(pattern),
-            remPattern =/\d*\.{0,1}\d+rem/g,
+            remPattern =/\d*\.?\d+rem/g,
             remCurrent = clean.match(remPattern);
         if( current !== null && current.length !== 0 ){
-            found = found.concat( current ); //save all of the blocks of rules with rem in a property
-            foundProps = foundProps.concat( remCurrent ); //save all of the properties with rem
+            found = found.concat( current ); // save all of the blocks of rules with rem in a property
+            foundProps = foundProps.concat( remCurrent ); // save all of the properties with rem
         }
         if( i === sheets.og-1 ){
-            buildIt();
+            buildCSS();
         }
     },
 
-    buildIt = function () { //first build each individual rule from elements in the found array and then add it to the string of rules.
-        var pattern = /[\w\d\s\-\/\\%#:,.'"*()]+\d*\.{0,1}\d+rem[\w\d\s\-\/\\%#:,.'"*()]*[;}]/g; //find properties with rem values in them
+    buildCSS = function () { // first build each individual rule from elements in the found array and then add it to the string of rules.
+        var pattern = /[\w\d\s\-\/\\%#:,.'"*()]+\d*\.?\d+rem[\w\d\s\-\/\\%#:,.'"*()]*[;}]/g; // find properties with rem values in them
         for( var i = 0; i < found.length; i++ ){
-            rules = rules + found[i].substr(0,found[i].indexOf("{")+1); //save the selector portion of each rule with a rem value
+            rules = rules + found[i].substr(0,found[i].indexOf("{")+1); // save the selector portion of each rule with a rem value
             var current = found[i].match( pattern );
-            for( var j = 0; j<current.length; j++ ){ //build a new set of with only the selector and properties that have rem in the value
+            for( var j = 0; j<current.length; j++ ){ // build a new set of with only the selector and properties that have rem in the value
                 rules = rules + current[j];
                 if( j === current.length-1 && rules[rules.length-1] !== "}" ){
                     rules = rules + "\n}";
@@ -59,47 +59,51 @@
             }
         }
 
-        parseIt();
+        parseCSS();
     },
 
-    parseIt = function () { //replace each set of parentheses with evaluated content
+    parseCSS = function () { // replace each set of parentheses with evaluated content
 
         for( var i = 0; i < foundProps.length; i++ ){
-            css[i] = Math.round( eval(foundProps[i].substr(0,foundProps[i].length-3)*fontSize) ) + 'px';
+            css[i] = Math.round( parseInt(foundProps[i].substr(0,foundProps[i].length-3)*fontSize, 10) ) + 'px';
         }
 
         loadCSS();
     },
 
-    loadCSS = function () { //replace and load the new rules
-        for( var i = 0; i < css.length; i++ ){ //only run this loop as many times as css has entries
+    loadCSS = function () { // replace and load the new rules
+        for( var i = 0; i < css.length; i++ ){ // only run this loop as many times as css has entries
             if( css[i] ){
-                rules = rules.replace( foundProps[i],css[i] ); //replace old rules with our processed rules
+                rules = rules.replace( foundProps[i],css[i] ); // replace old rules with our processed rules
             }
         }
         var remcss = document.createElement( 'style' );
         remcss.setAttribute( 'type', 'text/css' );
         remcss.id = 'remReplace';
-        document.getElementsByTagName( 'head' )[0].appendChild( remcss );   //create the new element
-        remcss.styleSheet.cssText = rules; // IE8 will not support innerHTML on read-only elements, such as STYLE
+        document.getElementsByTagName( 'head' )[0].appendChild( remcss );   // create the new element
+        if( remcss.styleSheet ) {
+            remcss.styleSheet.cssText = rules; // IE8 will not support innerHTML on read-only elements, such as STYLE
+        } else {
+            remcss.appendChild( document.createTextNode( rules ) );
+        }
     },
 
-    xhr = function ( url, callback, i ) { //create new XMLHttpRequest object and run it
+    xhr = function ( url, callback, i ) { // create new XMLHttpRequest object and run it
         try {
             var xhr = getXMLHttpRequest();
             xhr.open( 'GET', url, true );
             xhr.send();
-            if ( window.XMLHttpRequest ){ //If browser supports AJAX
+            if ( window.XMLHttpRequest ){ // If browser supports AJAX
                 xhr.onreadystatechange = function() {
                     if ( xhr.readyState === 4 ){
                         callback(xhr, i);
-                    } else { /*callback function on AJAX error*/ }
+                    } // else { callback function on AJAX error }
                 };
              } else { // Then we expect the browser should support AJAX through ActiveX (basically used to target IE6 and IE7)
-                xhr.onreadystatechange = new function() { //IE6 and IE7 need the "new function()" syntax to work properly
+                xhr.onreadystatechange = new function() { // IE6 and IE7 need the "new function()" syntax to work properly
                     if ( xhr.readyState === 4 ){
                         callback(xhr, i);
-                    } else { /*callback function on AJAX error*/ }
+                    } // else { callback function on AJAX error }
                 };
              }
          } catch (e){
@@ -110,7 +114,7 @@
                     callback(xdr, i);
                 };
                 xdr.onerror = function() {
-                    console.log('IE XDR load fail.');
+                    return false; // xdr load fail
                 };
                 xdr.send();
             }
@@ -129,45 +133,44 @@
         }
     },
 
-    getXMLHttpRequest = function () { //we're gonna check if our browser will let us use AJAX
+    getXMLHttpRequest = function () { // we're gonna check if our browser will let us use AJAX
         if (window.XMLHttpRequest) {
             return new XMLHttpRequest();
-        } else { //if XMLHttpRequest doesn't work
+        } else { // if XMLHttpRequest doesn't work
             try {
                 return new ActiveXObject("MSXML2.XMLHTTP"); // then we'll instead use AJAX through ActiveX for IE6/IE7
             } catch (e1) {
                 try {
                     return new ActiveXObject("Microsoft.XMLHTTP"); // other microsoft
                 } catch (e2) {
-                    //No XHR at all...
+                    // No XHR at all...
                 }
             }
         }
     };
 
-    if( !cssremunit() ){ //this checks if the rem value is supported
-        var rules = '', //initialize the rules variable in this scope so it can be used later
-            sheets = [], //initialize the array holding the sheets for use later
-            found = [], //initialize the array holding the found rules for use later
-            foundProps = [], //initialize the array holding the found properties for use later
-            css = [], //initialize the array holding the parsed rules for use later
+    if( !cssremunit() ){ // this checks if the rem value is supported
+        var rules = '', // initialize the rules variable in this scope so it can be used later
+            sheets = [], // initialize the array holding the sheets for use later
+            found = [], // initialize the array holding the found rules for use later
+            foundProps = [], // initialize the array holding the found properties for use later
+            css = [], // initialize the array holding the parsed rules for use later
             body = document.getElementsByTagName('body')[0],
             fontSize = '';
         if (body.currentStyle) {
-            if ( body.currentStyle['fontSize'].indexOf("px") >= 0 ) {
-                fontSize = body.currentStyle['fontSize'].replace('px', '');
-            } else if ( body.currentStyle['fontSize'].indexOf("em") >= 0 ) {
-                fontSize = body.currentStyle['fontSize'].replace('em', '');
-            } else if ( body.currentStyle['fontSize'].indexOf("pt") >= 0 ) {
-                fontSize = body.currentStyle['fontSize'].replace('pt', '');
+            if ( body.currentStyle.fontSize.indexOf("px") >= 0 ) {
+                fontSize = body.currentStyle.fontSize.replace('px', '');
+            } else if ( body.currentStyle.fontSize.indexOf("em") >= 0 ) {
+                fontSize = body.currentStyle.fontSize.replace('em', '');
+            } else if ( body.currentStyle.fontSize.indexOf("pt") >= 0 ) {
+                fontSize = body.currentStyle.fontSize.replace('pt', '');
             } else {
-                fontSize = (body.currentStyle['fontSize'].replace('%', '') / 100) * 16; //IE8 returns the percentage while other browsers return the computed value
+                fontSize = (body.currentStyle.fontSize.replace('%', '') / 100) * 16; // IE8 returns the percentage while other browsers return the computed value
             }
-        } else if (window.getComputedStyle)
-            fontSize = document.defaultView.getComputedStyle(body, null).getPropertyValue('font-size').replace('px', ''); //find font-size in body element
+        } else if (window.getComputedStyle) {
+            fontSize = document.defaultView.getComputedStyle(body, null).getPropertyValue('font-size').replace('px', ''); // find font-size in body element
+        }
         processSheets();
-    } else {
-        // do nothing, you are awesome and have REM support
-    }
+    } // else { do nothing, you are awesome and have REM support }
 
 })(window);
diff --git a/js/rem.min.js b/js/rem.min.js
index da5dd08..44923b6 100644
--- a/js/rem.min.js
+++ b/js/rem.min.js
@@ -1,7 +1,7 @@
-(function(window,undefined){var cssremunit=function(){var div=document.createElement("div");div.style.cssText="font-size: 1rem;";return/rem/.test(div.style.fontSize)},isStyleSheet=function(){var styles=document.getElementsByTagName("link"),filteredStyles=[];for(i=0;i<styles.length;i++)if(styles[i].rel.toLowerCase()==="stylesheet")filteredStyles.push(styles[i]);return filteredStyles},processSheets=function(){var links=[];sheets=isStyleSheet();sheets.og=sheets.length;for(var i=0;i<sheets.length;i++){links[i]=
-sheets[i].href;xhr(links[i],matchcss,i)}},matchcss=function(response,i){var clean=removeComments(response.responseText),pattern=/[\w\d\s\-\/\\\[\]:,.'"*()<>+~%#^$_=|]+\{[\w\d\s\-\/\\%#:;,.'"*()]+\d*\.{0,1}\d+rem[\w\d\s\-\/\\%#:;,.'"*()]*\}/g,current=clean.match(pattern),remPattern=/\d*\.{0,1}\d+rem/g,remCurrent=clean.match(remPattern);if(current!==null&&current.length!==0){found=found.concat(current);foundProps=foundProps.concat(remCurrent)}if(i===sheets.og-1)buildIt()},buildIt=function(){var pattern=
-/[\w\d\s\-\/\\%#:,.'"*()]+\d*\.{0,1}\d+rem[\w\d\s\-\/\\%#:,.'"*()]*[;}]/g;for(var i=0;i<found.length;i++){rules=rules+found[i].substr(0,found[i].indexOf("{")+1);var current=found[i].match(pattern);for(var j=0;j<current.length;j++){rules=rules+current[j];if(j===current.length-1&&rules[rules.length-1]!=="}")rules=rules+"\n}"}}parseIt()},parseIt=function(){for(var i=0;i<foundProps.length;i++)css[i]=Math.round(eval(foundProps[i].substr(0,foundProps[i].length-3)*fontSize))+"px";loadCSS()},loadCSS=function(){for(var i=
-0;i<css.length;i++)if(css[i])rules=rules.replace(foundProps[i],css[i]);var remcss=document.createElement("style");remcss.setAttribute("type","text/css");remcss.id="remReplace";document.getElementsByTagName("head")[0].appendChild(remcss);remcss.styleSheet.cssText=rules},xhr=function(url,callback,i){try{var xhr=getXMLHttpRequest();xhr.open("GET",url,true);xhr.send();if(window.XMLHttpRequest)xhr.onreadystatechange=function(){if(xhr.readyState===4)callback(xhr,i);else;};else xhr.onreadystatechange=new function(){if(xhr.readyState===
-4)callback(xhr,i);else;}}catch(e){if(window.XDomainRequest){var xdr=new XDomainRequest;xdr.open("get",url);xdr.onload=function(){callback(xdr,i)};xdr.onerror=function(){console.log("IE XDR load fail.")};xdr.send()}}},removeComments=function(css){var start=css.search(/\/\*/),end=css.search(/\*\//);if(start>-1&&end>start){css=css.substring(0,start)+css.substring(end+2);return removeComments(css)}else return css},getXMLHttpRequest=function(){if(window.XMLHttpRequest)return new XMLHttpRequest;else try{return new ActiveXObject("MSXML2.XMLHTTP")}catch(e1){try{return new ActiveXObject("Microsoft.XMLHTTP")}catch(e2){}}};
-if(!cssremunit()){var rules="",sheets=[],found=[],foundProps=[],css=[],body=document.getElementsByTagName("body")[0],fontSize="";if(body.currentStyle)if(body.currentStyle["fontSize"].indexOf("px")>=0)fontSize=body.currentStyle["fontSize"].replace("px","");else if(body.currentStyle["fontSize"].indexOf("em")>=0)fontSize=body.currentStyle["fontSize"].replace("em","");else if(body.currentStyle["fontSize"].indexOf("pt")>=0)fontSize=body.currentStyle["fontSize"].replace("pt","");else fontSize=body.currentStyle["fontSize"].replace("%",
-"")/100*16;else if(window.getComputedStyle)fontSize=document.defaultView.getComputedStyle(body,null).getPropertyValue("font-size").replace("px","");processSheets()}else;})(window);
\ No newline at end of file
+(function(window,undefined){var cssremunit=function(){var div=document.createElement("div");div.style.cssText="font-size: 1rem;";return/rem/.test(div.style.fontSize)},isStyleSheet=function(){var styles=document.getElementsByTagName("link"),filteredStyles=[];for(var i=0;i<styles.length;i++)if(styles[i].rel.toLowerCase()==="stylesheet"&&!styles[i].hasAttribute("data-norem"))filteredStyles.push(styles[i]);return filteredStyles},processSheets=function(){var links=[];sheets=isStyleSheet();sheets.og=sheets.length;
+for(var i=0;i<sheets.length;i++){links[i]=sheets[i].href;xhr(links[i],matchCSS,i)}},matchCSS=function(response,i){var clean=removeComments(response.responseText),pattern=/[\w\d\s\-\/\\\[\]:,.'"*()<>+~%#^$_=|@]+\{[\w\d\s\-\/\\%#:;,.'"*()]+\d*\.?\d+rem[\w\d\s\-\/\\%#:;,.'"*()]*\}/g,current=clean.match(pattern),remPattern=/\d*\.?\d+rem/g,remCurrent=clean.match(remPattern);if(current!==null&&current.length!==0){found=found.concat(current);foundProps=foundProps.concat(remCurrent)}if(i===sheets.og-1)buildCSS()},
+buildCSS=function(){var pattern=/[\w\d\s\-\/\\%#:,.'"*()]+\d*\.?\d+rem[\w\d\s\-\/\\%#:,.'"*()]*[;}]/g;for(var i=0;i<found.length;i++){rules=rules+found[i].substr(0,found[i].indexOf("{")+1);var current=found[i].match(pattern);for(var j=0;j<current.length;j++){rules=rules+current[j];if(j===current.length-1&&rules[rules.length-1]!=="}")rules=rules+"\n}"}}parseCSS()},parseCSS=function(){for(var i=0;i<foundProps.length;i++)css[i]=Math.round(parseInt(foundProps[i].substr(0,foundProps[i].length-3)*fontSize,
+10))+"px";loadCSS()},loadCSS=function(){for(var i=0;i<css.length;i++)if(css[i])rules=rules.replace(foundProps[i],css[i]);var remcss=document.createElement("style");remcss.setAttribute("type","text/css");remcss.id="remReplace";document.getElementsByTagName("head")[0].appendChild(remcss);if(remcss.styleSheet)remcss.styleSheet.cssText=rules;else remcss.appendChild(document.createTextNode(rules))},xhr=function(url,callback,i){try{var xhr=getXMLHttpRequest();xhr.open("GET",url,true);xhr.send();if(window.XMLHttpRequest)xhr.onreadystatechange=
+function(){if(xhr.readyState===4)callback(xhr,i)};else xhr.onreadystatechange=new function(){if(xhr.readyState===4)callback(xhr,i)}}catch(e){if(window.XDomainRequest){var xdr=new XDomainRequest;xdr.open("get",url);xdr.onload=function(){callback(xdr,i)};xdr.onerror=function(){return false};xdr.send()}}},removeComments=function(css){var start=css.search(/\/\*/),end=css.search(/\*\//);if(start>-1&&end>start){css=css.substring(0,start)+css.substring(end+2);return removeComments(css)}else return css},
+getXMLHttpRequest=function(){if(window.XMLHttpRequest)return new XMLHttpRequest;else try{return new ActiveXObject("MSXML2.XMLHTTP")}catch(e1){try{return new ActiveXObject("Microsoft.XMLHTTP")}catch(e2){}}};if(!cssremunit()){var rules="",sheets=[],found=[],foundProps=[],css=[],body=document.getElementsByTagName("body")[0],fontSize="";if(body.currentStyle)if(body.currentStyle.fontSize.indexOf("px")>=0)fontSize=body.currentStyle.fontSize.replace("px","");else if(body.currentStyle.fontSize.indexOf("em")>=
+0)fontSize=body.currentStyle.fontSize.replace("em","");else if(body.currentStyle.fontSize.indexOf("pt")>=0)fontSize=body.currentStyle.fontSize.replace("pt","");else fontSize=body.currentStyle.fontSize.replace("%","")/100*16;else if(window.getComputedStyle)fontSize=document.defaultView.getComputedStyle(body,null).getPropertyValue("font-size").replace("px","");processSheets()}})(window);
\ No newline at end of file

From 8079f2ad4053d1408b81f5e68157b4077f4390d9 Mon Sep 17 00:00:00 2001
From: Lucas Serven <lserven@gmail.com>
Date: Tue, 4 Jun 2013 11:47:18 -0400
Subject: [PATCH 2/4] Patch for issue 15

---
 js/rem.js     |  3 ++-
 js/rem.min.js | 14 +++++++-------
 2 files changed, 9 insertions(+), 8 deletions(-)

diff --git a/js/rem.js b/js/rem.js
index 3cb57e9..bb3c7ff 100644
--- a/js/rem.js
+++ b/js/rem.js
@@ -13,7 +13,8 @@
         var styles = document.getElementsByTagName('link'),
             filteredStyles = [];
         for (i = 0; i < styles.length; i++) {
-            if ( styles[i].rel.toLowerCase() === 'stylesheet' && !styles[i].hasAttribute('data-norem') ) {
+            // here we need to use getAttribute instead of hasAttribute to support IE < 8
+            if ( styles[i].rel.toLowerCase() === 'stylesheet' && styles[i].getAttribute('data-norem') !== null ) {
                 filteredStyles.push( styles[i] );
             }
         }
diff --git a/js/rem.min.js b/js/rem.min.js
index da5dd08..77b73f0 100644
--- a/js/rem.min.js
+++ b/js/rem.min.js
@@ -1,7 +1,7 @@
-(function(window,undefined){var cssremunit=function(){var div=document.createElement("div");div.style.cssText="font-size: 1rem;";return/rem/.test(div.style.fontSize)},isStyleSheet=function(){var styles=document.getElementsByTagName("link"),filteredStyles=[];for(i=0;i<styles.length;i++)if(styles[i].rel.toLowerCase()==="stylesheet")filteredStyles.push(styles[i]);return filteredStyles},processSheets=function(){var links=[];sheets=isStyleSheet();sheets.og=sheets.length;for(var i=0;i<sheets.length;i++){links[i]=
-sheets[i].href;xhr(links[i],matchcss,i)}},matchcss=function(response,i){var clean=removeComments(response.responseText),pattern=/[\w\d\s\-\/\\\[\]:,.'"*()<>+~%#^$_=|]+\{[\w\d\s\-\/\\%#:;,.'"*()]+\d*\.{0,1}\d+rem[\w\d\s\-\/\\%#:;,.'"*()]*\}/g,current=clean.match(pattern),remPattern=/\d*\.{0,1}\d+rem/g,remCurrent=clean.match(remPattern);if(current!==null&&current.length!==0){found=found.concat(current);foundProps=foundProps.concat(remCurrent)}if(i===sheets.og-1)buildIt()},buildIt=function(){var pattern=
-/[\w\d\s\-\/\\%#:,.'"*()]+\d*\.{0,1}\d+rem[\w\d\s\-\/\\%#:,.'"*()]*[;}]/g;for(var i=0;i<found.length;i++){rules=rules+found[i].substr(0,found[i].indexOf("{")+1);var current=found[i].match(pattern);for(var j=0;j<current.length;j++){rules=rules+current[j];if(j===current.length-1&&rules[rules.length-1]!=="}")rules=rules+"\n}"}}parseIt()},parseIt=function(){for(var i=0;i<foundProps.length;i++)css[i]=Math.round(eval(foundProps[i].substr(0,foundProps[i].length-3)*fontSize))+"px";loadCSS()},loadCSS=function(){for(var i=
-0;i<css.length;i++)if(css[i])rules=rules.replace(foundProps[i],css[i]);var remcss=document.createElement("style");remcss.setAttribute("type","text/css");remcss.id="remReplace";document.getElementsByTagName("head")[0].appendChild(remcss);remcss.styleSheet.cssText=rules},xhr=function(url,callback,i){try{var xhr=getXMLHttpRequest();xhr.open("GET",url,true);xhr.send();if(window.XMLHttpRequest)xhr.onreadystatechange=function(){if(xhr.readyState===4)callback(xhr,i);else;};else xhr.onreadystatechange=new function(){if(xhr.readyState===
-4)callback(xhr,i);else;}}catch(e){if(window.XDomainRequest){var xdr=new XDomainRequest;xdr.open("get",url);xdr.onload=function(){callback(xdr,i)};xdr.onerror=function(){console.log("IE XDR load fail.")};xdr.send()}}},removeComments=function(css){var start=css.search(/\/\*/),end=css.search(/\*\//);if(start>-1&&end>start){css=css.substring(0,start)+css.substring(end+2);return removeComments(css)}else return css},getXMLHttpRequest=function(){if(window.XMLHttpRequest)return new XMLHttpRequest;else try{return new ActiveXObject("MSXML2.XMLHTTP")}catch(e1){try{return new ActiveXObject("Microsoft.XMLHTTP")}catch(e2){}}};
-if(!cssremunit()){var rules="",sheets=[],found=[],foundProps=[],css=[],body=document.getElementsByTagName("body")[0],fontSize="";if(body.currentStyle)if(body.currentStyle["fontSize"].indexOf("px")>=0)fontSize=body.currentStyle["fontSize"].replace("px","");else if(body.currentStyle["fontSize"].indexOf("em")>=0)fontSize=body.currentStyle["fontSize"].replace("em","");else if(body.currentStyle["fontSize"].indexOf("pt")>=0)fontSize=body.currentStyle["fontSize"].replace("pt","");else fontSize=body.currentStyle["fontSize"].replace("%",
-"")/100*16;else if(window.getComputedStyle)fontSize=document.defaultView.getComputedStyle(body,null).getPropertyValue("font-size").replace("px","");processSheets()}else;})(window);
\ No newline at end of file
+(function(window,undefined){var cssremunit=function(){var div=document.createElement("div");div.style.cssText="font-size: 1rem;";return/rem/.test(div.style.fontSize)},isStyleSheet=function(){var styles=document.getElementsByTagName("link"),filteredStyles=[];for(i=0;i<styles.length;i++)if(styles[i].rel.toLowerCase()==="stylesheet"&&styles[i].getAttribute("data-norem")!==null)filteredStyles.push(styles[i]);return filteredStyles},processSheets=function(){var links=[];sheets=isStyleSheet();sheets.og=
+sheets.length;for(var i=0;i<sheets.length;i++){links[i]=sheets[i].href;xhr(links[i],matchcss,i)}},matchcss=function(response,i){var clean=removeComments(response.responseText),pattern=/[\w\d\s\-\/\\\[\]:,.'"*()<>+~%#^$_=|]+\{[\w\d\s\-\/\\%#:;,.'"*()]+\d*\.{0,1}\d+rem[\w\d\s\-\/\\%#:;,.'"*()]*\}/g,current=clean.match(pattern),remPattern=/\d*\.{0,1}\d+rem/g,remCurrent=clean.match(remPattern);if(current!==null&&current.length!==0){found=found.concat(current);foundProps=foundProps.concat(remCurrent)}if(i===
+sheets.og-1)buildIt()},buildIt=function(){var pattern=/[\w\d\s\-\/\\%#:,.'"*()]+\d*\.{0,1}\d+rem[\w\d\s\-\/\\%#:,.'"*()]*[;}]/g;for(var i=0;i<found.length;i++){rules=rules+found[i].substr(0,found[i].indexOf("{")+1);var current=found[i].match(pattern);for(var j=0;j<current.length;j++){rules=rules+current[j];if(j===current.length-1&&rules[rules.length-1]!=="}")rules=rules+"\n}"}}parseIt()},parseIt=function(){for(var i=0;i<foundProps.length;i++)css[i]=Math.round(eval(foundProps[i].substr(0,foundProps[i].length-
+3)*fontSize))+"px";loadCSS()},loadCSS=function(){for(var i=0;i<css.length;i++)if(css[i])rules=rules.replace(foundProps[i],css[i]);var remcss=document.createElement("style");remcss.setAttribute("type","text/css");remcss.id="remReplace";document.getElementsByTagName("head")[0].appendChild(remcss);remcss.styleSheet.cssText=rules},xhr=function(url,callback,i){try{var xhr=getXMLHttpRequest();xhr.open("GET",url,true);xhr.send();if(window.XMLHttpRequest)xhr.onreadystatechange=function(){if(xhr.readyState===
+4)callback(xhr,i);else;};else xhr.onreadystatechange=new function(){if(xhr.readyState===4)callback(xhr,i);else;}}catch(e){if(window.XDomainRequest){var xdr=new XDomainRequest;xdr.open("get",url);xdr.onload=function(){callback(xdr,i)};xdr.onerror=function(){console.log("IE XDR load fail.")};xdr.send()}}},removeComments=function(css){var start=css.search(/\/\*/),end=css.search(/\*\//);if(start>-1&&end>start){css=css.substring(0,start)+css.substring(end+2);return removeComments(css)}else return css},
+getXMLHttpRequest=function(){if(window.XMLHttpRequest)return new XMLHttpRequest;else try{return new ActiveXObject("MSXML2.XMLHTTP")}catch(e1){try{return new ActiveXObject("Microsoft.XMLHTTP")}catch(e2){}}};if(!cssremunit()){var rules="",sheets=[],found=[],foundProps=[],css=[],body=document.getElementsByTagName("body")[0],fontSize="";if(body.currentStyle)if(body.currentStyle["fontSize"].indexOf("px")>=0)fontSize=body.currentStyle["fontSize"].replace("px","");else if(body.currentStyle["fontSize"].indexOf("em")>=
+0)fontSize=body.currentStyle["fontSize"].replace("em","");else if(body.currentStyle["fontSize"].indexOf("pt")>=0)fontSize=body.currentStyle["fontSize"].replace("pt","");else fontSize=body.currentStyle["fontSize"].replace("%","")/100*16;else if(window.getComputedStyle)fontSize=document.defaultView.getComputedStyle(body,null).getPropertyValue("font-size").replace("px","");processSheets()}else;})(window);
\ No newline at end of file

From 63718bca380c8f01711865e679b2e41ffb1fe88f Mon Sep 17 00:00:00 2001
From: Lucas Serven <lserven@gmail.com>
Date: Tue, 4 Jun 2013 11:51:40 -0400
Subject: [PATCH 3/4] Fixed comparison logic

---
 js/rem.js     | 2 +-
 js/rem.min.js | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/js/rem.js b/js/rem.js
index bb3c7ff..3814ba3 100644
--- a/js/rem.js
+++ b/js/rem.js
@@ -14,7 +14,7 @@
             filteredStyles = [];
         for (i = 0; i < styles.length; i++) {
             // here we need to use getAttribute instead of hasAttribute to support IE < 8
-            if ( styles[i].rel.toLowerCase() === 'stylesheet' && styles[i].getAttribute('data-norem') !== null ) {
+            if ( styles[i].rel.toLowerCase() === 'stylesheet' && styles[i].getAttribute('data-norem') === null ) {
                 filteredStyles.push( styles[i] );
             }
         }
diff --git a/js/rem.min.js b/js/rem.min.js
index 77b73f0..6d7c4ec 100644
--- a/js/rem.min.js
+++ b/js/rem.min.js
@@ -1,4 +1,4 @@
-(function(window,undefined){var cssremunit=function(){var div=document.createElement("div");div.style.cssText="font-size: 1rem;";return/rem/.test(div.style.fontSize)},isStyleSheet=function(){var styles=document.getElementsByTagName("link"),filteredStyles=[];for(i=0;i<styles.length;i++)if(styles[i].rel.toLowerCase()==="stylesheet"&&styles[i].getAttribute("data-norem")!==null)filteredStyles.push(styles[i]);return filteredStyles},processSheets=function(){var links=[];sheets=isStyleSheet();sheets.og=
+(function(window,undefined){var cssremunit=function(){var div=document.createElement("div");div.style.cssText="font-size: 1rem;";return/rem/.test(div.style.fontSize)},isStyleSheet=function(){var styles=document.getElementsByTagName("link"),filteredStyles=[];for(i=0;i<styles.length;i++)if(styles[i].rel.toLowerCase()==="stylesheet"&&styles[i].getAttribute("data-norem")===null)filteredStyles.push(styles[i]);return filteredStyles},processSheets=function(){var links=[];sheets=isStyleSheet();sheets.og=
 sheets.length;for(var i=0;i<sheets.length;i++){links[i]=sheets[i].href;xhr(links[i],matchcss,i)}},matchcss=function(response,i){var clean=removeComments(response.responseText),pattern=/[\w\d\s\-\/\\\[\]:,.'"*()<>+~%#^$_=|]+\{[\w\d\s\-\/\\%#:;,.'"*()]+\d*\.{0,1}\d+rem[\w\d\s\-\/\\%#:;,.'"*()]*\}/g,current=clean.match(pattern),remPattern=/\d*\.{0,1}\d+rem/g,remCurrent=clean.match(remPattern);if(current!==null&&current.length!==0){found=found.concat(current);foundProps=foundProps.concat(remCurrent)}if(i===
 sheets.og-1)buildIt()},buildIt=function(){var pattern=/[\w\d\s\-\/\\%#:,.'"*()]+\d*\.{0,1}\d+rem[\w\d\s\-\/\\%#:,.'"*()]*[;}]/g;for(var i=0;i<found.length;i++){rules=rules+found[i].substr(0,found[i].indexOf("{")+1);var current=found[i].match(pattern);for(var j=0;j<current.length;j++){rules=rules+current[j];if(j===current.length-1&&rules[rules.length-1]!=="}")rules=rules+"\n}"}}parseIt()},parseIt=function(){for(var i=0;i<foundProps.length;i++)css[i]=Math.round(eval(foundProps[i].substr(0,foundProps[i].length-
 3)*fontSize))+"px";loadCSS()},loadCSS=function(){for(var i=0;i<css.length;i++)if(css[i])rules=rules.replace(foundProps[i],css[i]);var remcss=document.createElement("style");remcss.setAttribute("type","text/css");remcss.id="remReplace";document.getElementsByTagName("head")[0].appendChild(remcss);remcss.styleSheet.cssText=rules},xhr=function(url,callback,i){try{var xhr=getXMLHttpRequest();xhr.open("GET",url,true);xhr.send();if(window.XMLHttpRequest)xhr.onreadystatechange=function(){if(xhr.readyState===

From 8e9f7aa8886f3d4ab4aaa94fb252d1dba35c968f Mon Sep 17 00:00:00 2001
From: Lucas Serven <lserven@gmail.com>
Date: Tue, 4 Jun 2013 16:05:16 -0400
Subject: [PATCH 4/4] Added try/catch to support IE7

---
 js/rem.js     | 7 +++++--
 js/rem.min.js | 8 ++++----
 2 files changed, 9 insertions(+), 6 deletions(-)

diff --git a/js/rem.js b/js/rem.js
index 3814ba3..5be50d9 100644
--- a/js/rem.js
+++ b/js/rem.js
@@ -90,13 +90,16 @@
             var xhr = getXMLHttpRequest();
             xhr.open( 'GET', url, true );
             xhr.send();
-            if ( window.XMLHttpRequest ){ //If browser supports AJAX
+            try {
+                // This targets modern browsers and modern versions of IE,
+                // which don't need the "new" keyword.
                 xhr.onreadystatechange = function() {
                     if ( xhr.readyState === 4 ){
                         callback(xhr, i);
                     } else { /*callback function on AJAX error*/ }
                 };
-             } else { // Then we expect the browser should support AJAX through ActiveX (basically used to target IE6 and IE7)
+             } catch (e) {
+                // This block targets old versions of IE, which require "new".
                 xhr.onreadystatechange = new function() { //IE6 and IE7 need the "new function()" syntax to work properly
                     if ( xhr.readyState === 4 ){
                         callback(xhr, i);
diff --git a/js/rem.min.js b/js/rem.min.js
index 6d7c4ec..c028202 100644
--- a/js/rem.min.js
+++ b/js/rem.min.js
@@ -1,7 +1,7 @@
 (function(window,undefined){var cssremunit=function(){var div=document.createElement("div");div.style.cssText="font-size: 1rem;";return/rem/.test(div.style.fontSize)},isStyleSheet=function(){var styles=document.getElementsByTagName("link"),filteredStyles=[];for(i=0;i<styles.length;i++)if(styles[i].rel.toLowerCase()==="stylesheet"&&styles[i].getAttribute("data-norem")===null)filteredStyles.push(styles[i]);return filteredStyles},processSheets=function(){var links=[];sheets=isStyleSheet();sheets.og=
 sheets.length;for(var i=0;i<sheets.length;i++){links[i]=sheets[i].href;xhr(links[i],matchcss,i)}},matchcss=function(response,i){var clean=removeComments(response.responseText),pattern=/[\w\d\s\-\/\\\[\]:,.'"*()<>+~%#^$_=|]+\{[\w\d\s\-\/\\%#:;,.'"*()]+\d*\.{0,1}\d+rem[\w\d\s\-\/\\%#:;,.'"*()]*\}/g,current=clean.match(pattern),remPattern=/\d*\.{0,1}\d+rem/g,remCurrent=clean.match(remPattern);if(current!==null&&current.length!==0){found=found.concat(current);foundProps=foundProps.concat(remCurrent)}if(i===
 sheets.og-1)buildIt()},buildIt=function(){var pattern=/[\w\d\s\-\/\\%#:,.'"*()]+\d*\.{0,1}\d+rem[\w\d\s\-\/\\%#:,.'"*()]*[;}]/g;for(var i=0;i<found.length;i++){rules=rules+found[i].substr(0,found[i].indexOf("{")+1);var current=found[i].match(pattern);for(var j=0;j<current.length;j++){rules=rules+current[j];if(j===current.length-1&&rules[rules.length-1]!=="}")rules=rules+"\n}"}}parseIt()},parseIt=function(){for(var i=0;i<foundProps.length;i++)css[i]=Math.round(eval(foundProps[i].substr(0,foundProps[i].length-
-3)*fontSize))+"px";loadCSS()},loadCSS=function(){for(var i=0;i<css.length;i++)if(css[i])rules=rules.replace(foundProps[i],css[i]);var remcss=document.createElement("style");remcss.setAttribute("type","text/css");remcss.id="remReplace";document.getElementsByTagName("head")[0].appendChild(remcss);remcss.styleSheet.cssText=rules},xhr=function(url,callback,i){try{var xhr=getXMLHttpRequest();xhr.open("GET",url,true);xhr.send();if(window.XMLHttpRequest)xhr.onreadystatechange=function(){if(xhr.readyState===
-4)callback(xhr,i);else;};else xhr.onreadystatechange=new function(){if(xhr.readyState===4)callback(xhr,i);else;}}catch(e){if(window.XDomainRequest){var xdr=new XDomainRequest;xdr.open("get",url);xdr.onload=function(){callback(xdr,i)};xdr.onerror=function(){console.log("IE XDR load fail.")};xdr.send()}}},removeComments=function(css){var start=css.search(/\/\*/),end=css.search(/\*\//);if(start>-1&&end>start){css=css.substring(0,start)+css.substring(end+2);return removeComments(css)}else return css},
-getXMLHttpRequest=function(){if(window.XMLHttpRequest)return new XMLHttpRequest;else try{return new ActiveXObject("MSXML2.XMLHTTP")}catch(e1){try{return new ActiveXObject("Microsoft.XMLHTTP")}catch(e2){}}};if(!cssremunit()){var rules="",sheets=[],found=[],foundProps=[],css=[],body=document.getElementsByTagName("body")[0],fontSize="";if(body.currentStyle)if(body.currentStyle["fontSize"].indexOf("px")>=0)fontSize=body.currentStyle["fontSize"].replace("px","");else if(body.currentStyle["fontSize"].indexOf("em")>=
-0)fontSize=body.currentStyle["fontSize"].replace("em","");else if(body.currentStyle["fontSize"].indexOf("pt")>=0)fontSize=body.currentStyle["fontSize"].replace("pt","");else fontSize=body.currentStyle["fontSize"].replace("%","")/100*16;else if(window.getComputedStyle)fontSize=document.defaultView.getComputedStyle(body,null).getPropertyValue("font-size").replace("px","");processSheets()}else;})(window);
\ No newline at end of file
+3)*fontSize))+"px";loadCSS()},loadCSS=function(){for(var i=0;i<css.length;i++)if(css[i])rules=rules.replace(foundProps[i],css[i]);var remcss=document.createElement("style");remcss.setAttribute("type","text/css");remcss.id="remReplace";document.getElementsByTagName("head")[0].appendChild(remcss);remcss.styleSheet.cssText=rules},xhr=function(url,callback,i){try{var xhr=getXMLHttpRequest();xhr.open("GET",url,true);xhr.send();try{xhr.onreadystatechange=function(){if(xhr.readyState===4)callback(xhr,i);
+else;}}catch(e){xhr.onreadystatechange=new function(){if(xhr.readyState===4)callback(xhr,i);else;}}}catch(e){if(window.XDomainRequest){var xdr=new XDomainRequest;xdr.open("get",url);xdr.onload=function(){callback(xdr,i)};xdr.onerror=function(){console.log("IE XDR load fail.")};xdr.send()}}},removeComments=function(css){var start=css.search(/\/\*/),end=css.search(/\*\//);if(start>-1&&end>start){css=css.substring(0,start)+css.substring(end+2);return removeComments(css)}else return css},getXMLHttpRequest=
+function(){if(window.XMLHttpRequest)return new XMLHttpRequest;else try{return new ActiveXObject("MSXML2.XMLHTTP")}catch(e1){try{return new ActiveXObject("Microsoft.XMLHTTP")}catch(e2){}}};if(!cssremunit()){var rules="",sheets=[],found=[],foundProps=[],css=[],body=document.getElementsByTagName("body")[0],fontSize="";if(body.currentStyle)if(body.currentStyle["fontSize"].indexOf("px")>=0)fontSize=body.currentStyle["fontSize"].replace("px","");else if(body.currentStyle["fontSize"].indexOf("em")>=0)fontSize=
+body.currentStyle["fontSize"].replace("em","");else if(body.currentStyle["fontSize"].indexOf("pt")>=0)fontSize=body.currentStyle["fontSize"].replace("pt","");else fontSize=body.currentStyle["fontSize"].replace("%","")/100*16;else if(window.getComputedStyle)fontSize=document.defaultView.getComputedStyle(body,null).getPropertyValue("font-size").replace("px","");processSheets()}else;})(window);
\ No newline at end of file