From 423e31837b38d50eccb8b34205362ca5953ec213 Mon Sep 17 00:00:00 2001
From: hugo <hugo@fsfe.org>
Date: Tue, 28 Jan 2014 22:09:15 +0000
Subject: [PATCH] trying to fix IE8

svn path=/branches/test/; revision=27732
---
 fsfe.xsl                     |    1 +
 scripts/css3-mediaqueries.js | 1043 ++++++++++++++++++++++++++++++++++
 2 files changed, 1044 insertions(+)
 create mode 100644 scripts/css3-mediaqueries.js

diff --git a/fsfe.xsl b/fsfe.xsl
index 60feddfd15..d2a4437bd8 100644
--- a/fsfe.xsl
+++ b/fsfe.xsl
@@ -201,6 +201,7 @@
       ]]>
       <![CDATA[
         [if lt IE 9]>
+         <script src="/scripts/css3-mediaqueries.js"></script>
          <script src="/scripts/html5shiv.js"></script>
          <script src="/scripts/respond.min.js"></script>
         <![endif]
diff --git a/scripts/css3-mediaqueries.js b/scripts/css3-mediaqueries.js
new file mode 100644
index 0000000000..94f3629232
--- /dev/null
+++ b/scripts/css3-mediaqueries.js
@@ -0,0 +1,1043 @@
+/*
+copyright (c) 2008 Wouter van der Graaf, all rights reserved
+
+css3-mediaqueries.js - CSS Helper and CSS3 Media Queries Enabler
+
+author: Wouter van der Graaf <woutervandergraaf at gmail com>
+version: 0.9 (20091001)
+license: MIT
+website: http://woutervandergraaf.nl/css3-mediaqueries-js/
+
+W3C spec: http://www.w3.org/TR/css3-mediaqueries/
+
+Note: use of embedded <style> is not recommended when using media queries, because IE  has no way of returning the raw literal css text from a <style> element.
+*/
+
+
+// true prototypal inheritance (http://javascript.crockford.com/prototypal.html)
+if (typeof Object.create !== 'function') {
+	Object.create = function (o) {
+		function F() {}
+		F.prototype = o;
+		return new F();
+	};
+}
+
+
+// user agent sniffing shortcuts
+var ua = {
+	toString: function () {
+		return navigator.userAgent;
+	},
+	test: function (s) {
+		return this.toString().toLowerCase().indexOf(s.toLowerCase()) > -1;
+	}
+};
+ua.version = (ua.toString().toLowerCase().match(/[\s\S]+(?:rv|it|ra|ie)[\/: ]([\d.]+)/) || [])[1];
+ua.webkit = ua.test('webkit');
+ua.gecko = ua.test('gecko') && !ua.webkit;
+ua.opera = ua.test('opera');
+ua.ie = ua.test('msie') && !ua.opera;
+ua.ie6 = ua.ie && document.compatMode && typeof document.documentElement.style.maxHeight === 'undefined';
+ua.ie7 = ua.ie && document.documentElement && typeof document.documentElement.style.maxHeight !== 'undefined' && typeof XDomainRequest === 'undefined';
+ua.ie8 = ua.ie && typeof XDomainRequest !== 'undefined';
+
+
+
+// initialize when DOM content is loaded
+var domReady = function () {
+	var fns = [];
+	var init = function () {
+		if (!arguments.callee.done) { // run init functions once
+			arguments.callee.done = true;
+			for (var i = 0; i < fns.length; i++) {
+				fns[i]();
+			}
+		}
+	};
+	
+	// listeners for different browsers
+	if (document.addEventListener) {
+		document.addEventListener('DOMContentLoaded', init, false);
+	}
+	if (ua.ie) {
+		(function () {
+			try {
+				// throws errors until after ondocumentready
+				document.documentElement.doScroll('left');
+				
+				// If we are in an iframe, the above does not work properly.
+        // Trying to access the length attribute of document.body, however,
+        // does throw an error until ondocumentready, fixing this issue.
+        document.body.length;
+			}
+			catch (e) {
+				setTimeout(arguments.callee, 50);
+				return;
+			}
+			// no errors, fire
+			init();
+		})();
+		// trying to always fire before onload
+		document.onreadystatechange = function () {
+			if (document.readyState === 'complete') {
+				document.onreadystatechange = null;
+				init();
+			}
+		};
+	}
+	if (ua.webkit && document.readyState) {
+		(function () {
+			if (document.readyState !== 'loading') {
+				init();
+			}
+			else {
+				setTimeout(arguments.callee, 10);
+			}
+		})();
+	}
+	window.onload = init; // fallback
+
+ return function (fn) { // add fn to init functions
+    if (typeof fn === 'function') {
+      // If DOM ready has already been fired, fire the function
+      // right away.
+      if(init.done) {
+        fn();
+      } else {
+        // Add to the queue
+        fns[fns.length] = fn;
+      }
+    }
+    return fn;
+  };
+}();
+
+// helper library for parsing css to objects
+var cssHelper = function () {
+
+	var regExp = {
+		BLOCKS: /[^\s{][^{]*\{(?:[^{}]*\{[^{}]*\}[^{}]*|[^{}]*)*\}/g,
+		BLOCKS_INSIDE: /[^\s{][^{]*\{[^{}]*\}/g,
+		DECLARATIONS: /[a-zA-Z\-]+[^;]*:[^;]+;/g,
+		RELATIVE_URLS: /url\(['"]?([^\/\)'"][^:\)'"]+)['"]?\)/g,
+		// strip whitespace and comments, @import is evil
+		REDUNDANT_COMPONENTS: /(?:\/\*([^*\\\\]|\*(?!\/))+\*\/|@import[^;]+;)/g,
+		REDUNDANT_WHITESPACE: /\s*(,|:|;|\{|\})\s*/g,
+		MORE_WHITESPACE: /\s{2,}/g,
+		FINAL_SEMICOLONS: /;\}/g,
+		NOT_WHITESPACE: /\S+/g
+	};
+	
+	var parsed, parsing = false;
+	
+	var waiting = [];
+	var wait = function (fn) {
+		if (typeof fn === 'function') {
+			waiting[waiting.length] = fn;
+		}
+	};
+	var ready = function () {
+		for (var i = 0; i < waiting.length; i++) {
+			waiting[i](parsed);
+		}
+	};
+	var events = {};
+	var broadcast = function (n, v) {
+		if (events[n]) {
+			var listeners = events[n].listeners;
+			if (listeners) {
+				for (var i = 0; i < listeners.length; i++) {
+					listeners[i](v);
+				}
+			}
+		}
+	};
+	
+	var requestText = function (url, fnSuccess, fnFailure) {
+		if (ua.ie && !window.XMLHttpRequest) {
+			window.XMLHttpRequest = function () {
+				return new ActiveXObject('Microsoft.XMLHTTP');
+			};
+		}
+		if (!XMLHttpRequest) {
+			return '';
+		}
+		var r = new XMLHttpRequest();
+		try {
+			r.open('get', url, true);
+			r.setRequestHeader('X_REQUESTED_WITH', 'XMLHttpRequest');
+		}
+		catch (e) {
+			fnFailure();
+			return;
+		}
+		var done = false;
+		setTimeout(function () {
+			done = true;
+		}, 5000);
+		document.documentElement.style.cursor = 'progress';
+		r.onreadystatechange = function () {
+			if (r.readyState === 4 && !done) {
+				if (!r.status && location.protocol === 'file:' ||
+						(r.status >= 200 && r.status < 300) ||
+						r.status === 304 ||
+						navigator.userAgent.indexOf('Safari') > -1 && typeof r.status === 'undefined') {
+					fnSuccess(r.responseText);
+				}
+				else {
+					fnFailure();
+				}
+				document.documentElement.style.cursor = '';
+				r = null; // avoid memory leaks
+			}
+		};
+		r.send('');
+	};
+	
+	var sanitize = function (text) {
+		text = text.replace(regExp.REDUNDANT_COMPONENTS, '');
+		text = text.replace(regExp.REDUNDANT_WHITESPACE, '$1');
+		text = text.replace(regExp.MORE_WHITESPACE, ' ');
+		text = text.replace(regExp.FINAL_SEMICOLONS, '}'); // optional final semicolons
+		return text;
+	};
+	
+	var objects = {
+		
+		mediaQueryList: function (s) {
+			var o = {};
+			var idx = s.indexOf('{');
+			var lt = s.substring(0, idx);
+			s = s.substring(idx + 1, s.length - 1);
+			var mqs = [], rs = [];
+			
+			// add media queries
+			var qts = lt.toLowerCase().substring(7).split(',');
+			for (var i = 0; i < qts.length; i++) { // parse each media query
+				mqs[mqs.length] = objects.mediaQuery(qts[i], o);
+			}
+			
+			// add rule sets
+			var rts = s.match(regExp.BLOCKS_INSIDE);
+			if (rts !== null) {
+				for (i = 0; i < rts.length; i++) {
+					rs[rs.length] = objects.rule(rts[i], o);
+				}
+			}
+			
+			o.getMediaQueries = function () {
+				return mqs;
+			};
+			o.getRules = function () {
+				return rs;
+			};
+			o.getListText = function () {
+				return lt;
+			};
+			o.getCssText = function () {
+				return s;
+			};
+			return o;
+		},
+		
+		mediaQuery: function (s, mql) {
+			s = s || '';
+			var not = false, type;
+			var exp = [];
+			var valid = true;
+			var tokens = s.match(regExp.NOT_WHITESPACE);
+			for (var i = 0; i < tokens.length; i++) {
+				var token = tokens[i];
+				if (!type && (token === 'not' || token === 'only')) { // 'not' and 'only' keywords
+					// keyword 'only' does nothing, as if it was not present
+					if (token === 'not') {
+						not = true;
+					}
+				}
+				else if (!type) { // media type
+					type = token;
+				}
+				else if (token.charAt(0) === '(') { // media feature expression
+					var pair = token.substring(1, token.length - 1).split(':');
+					exp[exp.length] = {
+						mediaFeature: pair[0],
+						value: pair[1] || null
+					};
+				}
+			}
+			
+			return {
+				getList: function () {
+					return mql || null;
+				},
+				getValid: function () {
+					return valid;
+				},
+				getNot: function () {
+					return not;
+				},
+				getMediaType: function () {
+					return type;
+				},
+				getExpressions: function () {
+					return exp;
+				}
+			};
+		},
+		
+		rule: function (s, mql) {
+			var o = {};
+			var idx = s.indexOf('{');
+			var st = s.substring(0, idx);
+			var ss = st.split(',');
+			var ds = [];
+			var dts = s.substring(idx + 1, s.length - 1).split(';');
+			for (var i = 0; i < dts.length; i++) {
+				ds[ds.length] = objects.declaration(dts[i], o);
+			}
+			
+			o.getMediaQueryList = function () {
+				return mql || null;
+			};
+			o.getSelectors = function () {
+				return ss;
+			};
+			o.getSelectorText = function () {
+				return st;
+			};
+			o.getDeclarations = function () {
+				return ds;
+			};
+			o.getPropertyValue = function (n) {
+				for (var i = 0; i < ds.length; i++) {
+					if (ds[i].getProperty() === n) {
+						return ds[i].getValue();
+					}
+				}
+				return null;
+			};
+			return o;
+		},
+		
+		declaration: function (s, r) {
+			var idx = s.indexOf(':');
+			var p = s.substring(0, idx);
+			var v = s.substring(idx + 1);
+			return {
+				getRule: function () {
+					return r || null;
+				},
+				getProperty: function () {
+					return p;
+				},
+				getValue: function () {
+					return v;
+				}
+			};
+		}
+	};
+	
+	var parseText = function (el) {
+		if (typeof el.cssHelperText !== 'string') {
+			return;
+		}
+		var o = {
+			mediaQueryLists: [],
+			rules: [],
+			selectors: {},
+			declarations: [],
+			properties: {}
+		};
+		
+		// parse blocks and collect media query lists and rules
+		var mqls = o.mediaQueryLists;
+		var ors = o.rules;
+		var blocks = el.cssHelperText.match(regExp.BLOCKS);
+		if (blocks !== null) {
+			for (var i = 0; i < blocks.length; i++) {
+				if (blocks[i].substring(0, 7) === '@media ') { // media query (list)
+					mqls[mqls.length] = objects.mediaQueryList(blocks[i]);
+					ors = o.rules = ors.concat(mqls[mqls.length - 1].getRules());
+				}
+				else { // regular rule set, page context (@page) or font description (@font-face)
+					ors[ors.length] = objects.rule(blocks[i]);
+				}
+			}
+		}
+		
+		// collect selectors
+		var oss = o.selectors;
+		var collectSelectors = function (r) {
+			var ss = r.getSelectors();
+			for (var i = 0; i < ss.length; i++) {
+				var n = ss[i];
+				if (!oss[n]) {
+					oss[n] = [];
+				}
+				oss[n][oss[n].length] = r;
+			}
+		};
+		for (i = 0; i < ors.length; i++) {
+			collectSelectors(ors[i]);
+		}
+		
+		// collect declarations
+		var ods = o.declarations;
+		for (i = 0; i < ors.length; i++) {
+			ods = o.declarations = ods.concat(ors[i].getDeclarations());
+		}
+		
+		// collect properties
+		var ops = o.properties;
+		for (i = 0; i < ods.length; i++) {
+			var n = ods[i].getProperty();
+			if (!ops[n]) {
+				ops[n] = [];
+			}
+			ops[n][ops[n].length] = ods[i];
+		}
+		
+		el.cssHelperParsed = o;
+		parsed[parsed.length] = el;
+		return o;
+	};
+	
+	var parseEmbedded = function (el, s) {
+		el.cssHelperText = sanitize(s || el.innerHTML); // bug in IE, where innerHTML gives us parsed css instead of raw literal
+		return parseText(el);
+	};
+	
+	var parse = function () {
+		parsing = true;
+		parsed = [];
+		var linked = [];
+		var finish = function () {
+			for (var i = 0; i < linked.length; i++) {
+				parseText(linked[i]);
+			}
+			var styles = document.getElementsByTagName('style');
+			for (i = 0; i < styles.length; i++) {
+				parseEmbedded(styles[i]);
+			}
+			parsing = false;
+			ready();
+		};
+		var links = document.getElementsByTagName('link');
+		for (var i = 0; i < links.length; i++) {
+			var link = links[i];
+			if (link.getAttribute('rel').indexOf('style') > -1 && link.href && link.href.length !== 0 && !link.disabled) {
+				linked[linked.length] = link;
+			}
+		}
+		if (linked.length > 0) {
+			var c = 0;
+			var checkForFinish = function () {
+				c++;
+				if (c === linked.length) { // parse in right order, so after last link is read
+					finish();
+				}
+			};
+			var processLink = function (link) {
+				var href = link.href;
+				requestText(href, function (text) {
+					// fix url's
+					text = sanitize(text).replace(regExp.RELATIVE_URLS, 'url(' + href.substring(0, href.lastIndexOf('/')) + '/$1)');
+					link.cssHelperText = text;
+					checkForFinish();
+				}, checkForFinish);
+			};
+			for (i = 0; i < linked.length; i++) {
+				processLink(linked[i]);
+			}
+		}
+		else {
+			finish();
+		}
+	};
+	
+	var types = {
+		mediaQueryLists: 'array',
+		rules: 'array',
+		selectors: 'object',
+		declarations: 'array',
+		properties: 'object'
+	};
+	
+	var collections = {
+		mediaQueryLists: null,
+		rules: null,
+		selectors: null,
+		declarations: null,
+		properties: null
+	};
+	
+	var addToCollection = function (name, v) {
+		if (collections[name] !== null) {
+			if (types[name] === 'array') {
+				return (collections[name] = collections[name].concat(v));
+			}
+			else {
+				var c = collections[name];
+				for (var n in v) {
+					if (v.hasOwnProperty(n)) {
+						if (!c[n]) {
+							c[n] = v[n];
+						}
+						else {
+							c[n] = c[n].concat(v[n]);
+						}
+					}
+				}
+				return c;
+			}
+		}
+	};
+	
+	var collect = function (name) {
+		collections[name] = (types[name] === 'array') ? [] : {};
+		for (var i = 0; i < parsed.length; i++) {
+			addToCollection(name, parsed[i].cssHelperParsed[name]);
+		}
+		return collections[name];
+	};
+	
+	// timer for broadcasting added elements
+	domReady(function () {
+		var els = document.body.getElementsByTagName('*');
+		for (var i = 0; i < els.length; i++) {
+			els[i].checkedByCssHelper = true;
+		}
+		
+		if (document.implementation.hasFeature('MutationEvents', '2.0') || window.MutationEvent) {
+			document.body.addEventListener('DOMNodeInserted', function (e) {
+				var el = e.target;
+				if (el.nodeType === 1) {
+					broadcast('DOMElementInserted', el);
+					el.checkedByCssHelper = true;
+				}
+			}, false);
+		}
+		else {
+			setInterval(function () {
+				var els = document.body.getElementsByTagName('*');
+				for (var i = 0; i < els.length; i++) {
+					if (!els[i].checkedByCssHelper) {
+						broadcast('DOMElementInserted', els[i]);
+						els[i].checkedByCssHelper = true;
+					}
+				}
+			}, 1000);
+		}
+	});
+	
+	// viewport size
+	var getViewportSize = function (d) {
+		if (typeof window.innerWidth != 'undefined') {
+			return window["inner" + d];
+		}
+		else if (typeof document.documentElement != 'undefined'
+				&& typeof document.documentElement.clientWidth != 'undefined'
+				&& document.documentElement.clientWidth != 0) {
+			return document.documentElement["client" + d];
+		}
+	};
+
+	// public static functions
+	return {
+		addStyle: function (s, process) {
+			var el;
+		            if (null !== document.getElementById('css-mediaqueries-js')) {
+		                el = document.getElementById('css-mediaqueries-js');
+		            }
+		            else {
+		                el = document.createElement('style');
+		                el.setAttribute('type', 'text/css');
+		                el.setAttribute('id', 'css-mediaqueries-js');
+		                document.getElementsByTagName('head')[0].appendChild(el);
+		            }
+		            if (el.styleSheet) { // IE
+		                el.styleSheet.cssText += s;
+		            }
+		            else {
+		                el.appendChild(document.createTextNode(s));
+		            }
+			el.addedWithCssHelper = true;
+			if (typeof process === 'undefined' || process === true) {
+				cssHelper.parsed(function (parsed) {
+					var o = parseEmbedded(el, s);
+					for (var n in o) {
+						if (o.hasOwnProperty(n)) {
+							addToCollection(n, o[n]);
+						}
+					}
+					broadcast('newStyleParsed', el);
+				});
+			}
+			else {
+				el.parsingDisallowed = true;
+			}
+			return el;
+		},
+		
+		removeStyle: function (el) {
+			if (el.parentNode)
+                		return el.parentNode.removeChild(el);
+		},
+		
+		parsed: function (fn) {
+			if (parsing) {
+				wait(fn);
+			}
+			else {
+				if (typeof parsed !== 'undefined') {
+					if (typeof fn === 'function') {
+						fn(parsed);
+					}
+				}
+				else {
+					wait(fn);
+					parse();
+				}
+			}
+		},
+		
+		mediaQueryLists: function (fn) {
+			cssHelper.parsed(function (parsed) {
+				fn(collections.mediaQueryLists || collect('mediaQueryLists'));
+			});
+		},
+		
+		rules: function (fn) {
+			cssHelper.parsed(function (parsed) {
+				fn(collections.rules || collect('rules'));
+			});
+		},
+		
+		selectors: function (fn) {
+			cssHelper.parsed(function (parsed) {
+				fn(collections.selectors || collect('selectors'));
+			});
+		},
+		
+		declarations: function (fn) {
+			cssHelper.parsed(function (parsed) {
+				fn(collections.declarations || collect('declarations'));
+			});
+		},
+		
+		properties: function (fn) {
+			cssHelper.parsed(function (parsed) {
+				fn(collections.properties || collect('properties'));
+			});
+		},
+		
+		broadcast: broadcast,
+		
+		addListener: function (n, fn) { // in case n is 'styleadd': added function is called everytime style is added and parsed
+			if (typeof fn === 'function') {
+				if (!events[n]) {
+					events[n] = {
+						listeners: []
+					};
+				}
+				events[n].listeners[events[n].listeners.length] = fn;
+			}
+		},
+		
+		removeListener: function (n, fn) {
+			if (typeof fn === 'function' && events[n]) {
+				var ls = events[n].listeners;
+				for (var i = 0; i < ls.length; i++) {
+					if (ls[i] === fn) {
+						ls.splice(i, 1);
+						i -= 1;
+					}
+				}
+			}
+		},
+		
+		getViewportWidth: function () {
+			return getViewportSize("Width");
+		},
+		
+		getViewportHeight: function () {
+			return getViewportSize("Height");
+		}
+	};
+}();
+
+
+
+// function to test and apply parsed media queries against browser capabilities
+domReady(function enableCssMediaQueries() {
+	var meter;
+	
+	var regExp = {
+		LENGTH_UNIT: /[0-9]+(em|ex|px|in|cm|mm|pt|pc)$/,
+		RESOLUTION_UNIT: /[0-9]+(dpi|dpcm)$/,
+		ASPECT_RATIO: /^[0-9]+\/[0-9]+$/,
+		ABSOLUTE_VALUE: /^[0-9]*(\.[0-9]+)*$/
+	};
+	
+	var styles = [];
+	
+	var nativeSupport = function () {
+		// check support for media queries
+		var id = 'css3-mediaqueries-test';
+		var el = document.createElement('div');
+		el.id = id;
+		var style = cssHelper.addStyle('@media all and (width) { #' + id +
+			' { width: 1px !important; } }', false); // false means don't parse this temp style
+		document.body.appendChild(el);
+		var ret = el.offsetWidth === 1;
+		style.parentNode.removeChild(style);
+		el.parentNode.removeChild(el);
+		nativeSupport = function () {
+			return ret;
+		};
+		return ret;
+	};
+	
+	var createMeter = function () { // create measuring element
+		meter = document.createElement('div');
+		meter.style.cssText = 'position:absolute;top:-9999em;left:-9999em;' +
+			'margin:0;border:none;padding:0;width:1em;font-size:1em;'; // cssText is needed for IE, works for the others
+		document.body.appendChild(meter);
+		// meter must have browser default font size of 16px
+		if (meter.offsetWidth !== 16) {
+			meter.style.fontSize = 16 / meter.offsetWidth + 'em';
+		}
+		meter.style.width = '';
+	};
+	
+	var measure = function (value) {
+		meter.style.width = value;
+		var amount = meter.offsetWidth;
+		meter.style.width = '';
+		return amount;
+	};
+	
+	var testMediaFeature = function (feature, value) {
+		// non-testable features: monochrome|min-monochrome|max-monochrome|scan|grid
+		var l = feature.length;
+		var min = (feature.substring(0, 4) === 'min-');
+		var max = (!min && feature.substring(0, 4) === 'max-');
+		
+		if (value !== null) { // determine value type and parse to usable amount
+			var valueType;
+			var amount;
+			if (regExp.LENGTH_UNIT.exec(value)) {
+				valueType = 'length';
+				amount = measure(value);
+			}
+			else if (regExp.RESOLUTION_UNIT.exec(value)) {
+				valueType = 'resolution';
+				amount = parseInt(value, 10);
+				var unit = value.substring((amount + '').length);
+			}
+			else if (regExp.ASPECT_RATIO.exec(value)) {
+				valueType = 'aspect-ratio';
+				amount = value.split('/');
+			}
+			else if (regExp.ABSOLUTE_VALUE) {
+				valueType = 'absolute';
+				amount = value;
+			}
+			else {
+				valueType = 'unknown';
+			}
+		}
+		
+		var width, height;
+		if ('device-width' === feature.substring(l - 12, l)) { // screen width
+			width = screen.width;
+			if (value !== null) {
+				if (valueType === 'length') {
+					return ((min && width >= amount) || (max && width < amount) || (!min && !max && width === amount));
+				}
+				else {
+					return false;
+				}
+			}
+			else { // test width without value
+				return width > 0;
+			}
+		}
+		else if ('device-height' === feature.substring(l - 13, l)) { // screen height
+			height = screen.height;
+			if (value !== null) {
+				if (valueType === 'length') {
+					return ((min && height >= amount) || (max && height < amount) || (!min && !max && height === amount));
+				}
+				else {
+					return false;
+				}
+			}
+			else { // test height without value
+				return height > 0;
+			}
+		}
+		else if ('width' === feature.substring(l - 5, l)) { // viewport width
+			width = document.documentElement.clientWidth || document.body.clientWidth; // the latter for IE quirks mode
+			if (value !== null) {
+				if (valueType === 'length') {
+					return ((min && width >= amount) || (max && width < amount) || (!min && !max && width === amount));
+				}
+				else {
+					return false;
+				}
+			}
+			else { // test width without value
+				return width > 0;
+			}
+		}
+		else if ('height' === feature.substring(l - 6, l)) { // viewport height
+			height = document.documentElement.clientHeight || document.body.clientHeight; // the latter for IE quirks mode
+			if (value !== null) {
+				if (valueType === 'length') {
+					return ((min && height >= amount) || (max && height < amount) || (!min && !max && height === amount));
+				}
+				else {
+					return false;
+				}
+			}
+			else { // test height without value
+				return height > 0;
+			}
+		}
+		else if ('orientation' === feature.substring(l - 11, l)) { // orientation
+
+			width = document.documentElement.clientWidth || document.body.clientWidth; // the latter for IE quirks mode
+			height = document.documentElement.clientHeight || document.body.clientHeight; // the latter for IE quirks mode
+			
+			if (valueType === 'absolute') {
+				return (amount === 'portrait') ? (width <= height) : (width > height);
+			}
+			else {
+				return false;
+			}
+		}
+		else if ('aspect-ratio' === feature.substring(l - 12, l)) { // window aspect ratio
+			width = document.documentElement.clientWidth || document.body.clientWidth; // the latter for IE quirks mode
+			height = document.documentElement.clientHeight || document.body.clientHeight; // the latter for IE quirks mode
+
+			var curRatio = width / height;
+			var ratio = amount[1] / amount[0];
+			
+			if (valueType === 'aspect-ratio') {
+				return ((min && curRatio >= ratio) || (max && curRatio < ratio) || (!min && !max && curRatio === ratio));
+			}
+			else {
+				return false;
+			}
+		}
+		else if ('device-aspect-ratio' === feature.substring(l - 19, l)) { // screen aspect ratio
+			return valueType === 'aspect-ratio' && screen.width * amount[1] === screen.height * amount[0];
+		}
+		else if ('color-index' === feature.substring(l - 11, l)) { // number of colors
+			var colors = Math.pow(2, screen.colorDepth);
+			if (value !== null) {
+				if (valueType === 'absolute') {
+					return ((min && colors >= amount) || (max && colors < amount) || (!min && !max && colors === amount));
+				}
+				else {
+					return false;
+				}
+			}
+			else { // test height without value
+				return colors > 0;
+			}
+		}
+		else if ('color' === feature.substring(l - 5, l)) { // bits per color component
+			var color = screen.colorDepth;
+			if (value !== null) {
+				if (valueType === 'absolute') {
+					return ((min && color >= amount) || (max && color < amount) || (!min && !max && color === amount));
+				}
+				else {
+					return false;
+				}
+			}
+			else { // test height without value
+				return color > 0;
+			}
+		}
+		else if ('resolution' === feature.substring(l - 10, l)) {
+			var res;
+			if (unit === 'dpcm') {
+				res = measure('1cm');
+			}
+			else {
+				res = measure('1in');
+			}
+			if (value !== null) {
+				if (valueType === 'resolution') {
+					return ((min && res >= amount) || (max && res < amount) || (!min && !max && res === amount));
+				}
+				else {
+					return false;
+				}
+			}
+			else { // test height without value
+				return res > 0;
+			}
+		}
+		else {
+			return false;
+		}
+	};
+	
+	var testMediaQuery = function (mq) {
+		var test = mq.getValid();
+		var expressions = mq.getExpressions();
+		var l = expressions.length;
+		if (l > 0) {
+			for (var i = 0; i < l && test; i++) {
+				test = testMediaFeature(expressions[i].mediaFeature, expressions[i].value);
+			}
+			var not = mq.getNot();
+			return (test && !not || not && !test);
+		}
+	};
+	
+	var testMediaQueryList = function (mql) {
+		var mqs = mql.getMediaQueries();
+		var t = {};
+		for (var i = 0; i < mqs.length; i++) {
+			if (testMediaQuery(mqs[i])) {
+				t[mqs[i].getMediaType()] = true;
+			}
+		}
+		var s = [], c = 0;
+		for (var n in t) {
+			if (t.hasOwnProperty(n)) {
+				if (c > 0) {
+					s[c++] = ',';
+				}
+				s[c++] = n;
+			}
+		}
+		if (s.length > 0) {
+			styles[styles.length] = cssHelper.addStyle('@media ' + s.join('') + '{' + mql.getCssText() + '}', false);
+		}
+	};
+	
+	var testMediaQueryLists = function (mqls) {
+		for (var i = 0; i < mqls.length; i++) {
+			testMediaQueryList(mqls[i]);
+		}
+		if (ua.ie) {
+			// force repaint in IE
+			document.documentElement.style.display = 'block';
+			setTimeout(function () {
+				document.documentElement.style.display = '';
+			}, 0);
+			// delay broadcast somewhat for IE
+			setTimeout(function () {
+				cssHelper.broadcast('cssMediaQueriesTested');
+			}, 100);
+		}
+		else {
+			cssHelper.broadcast('cssMediaQueriesTested');
+		}
+	};
+	
+	var test = function () {
+		for (var i = 0; i < styles.length; i++) {
+			cssHelper.removeStyle(styles[i]);
+		}
+		styles = [];
+		cssHelper.mediaQueryLists(testMediaQueryLists);
+	};
+	
+	var scrollbarWidth = 0;
+	var checkForResize = function () {
+		var cvpw = cssHelper.getViewportWidth();
+		var cvph = cssHelper.getViewportHeight();
+		
+		// determine scrollbar width in IE, see resizeHandler
+		if (ua.ie) {
+			var el = document.createElement('div');
+			el.style.width = '100px';
+			el.style.height = '100px';
+			el.style.position = 'absolute';
+			el.style.top = '-9999em';
+			el.style.overflow = 'scroll';
+			document.body.appendChild(el);
+			scrollbarWidth = el.offsetWidth - el.clientWidth;
+			document.body.removeChild(el);
+		}
+		
+		var timer;
+		var resizeHandler = function () {
+			var vpw = cssHelper.getViewportWidth();
+			var vph = cssHelper.getViewportHeight();
+			// check whether vp size has really changed, because IE also triggers resize event when body size changes
+			// 20px allowance to accomodate short appearance of scrollbars in IE in some cases
+			if (Math.abs(vpw - cvpw) > scrollbarWidth || Math.abs(vph - cvph) > scrollbarWidth) {
+				cvpw = vpw;
+				cvph = vph;
+				clearTimeout(timer);
+				timer = setTimeout(function () {
+					if (!nativeSupport()) {
+						test();
+					}
+					else {
+						cssHelper.broadcast('cssMediaQueriesTested');
+					}
+				}, 500);
+			}
+		};
+		
+		window.onresize = function () {
+			var x = window.onresize || function () {}; // save original
+			return function () {
+				x();
+				resizeHandler();
+			};
+		}();
+	};
+	
+	// prevent jumping of layout by hiding everything before painting <body>
+    var docEl = document.documentElement;
+	docEl.style.marginLeft = '-32767px';
+	
+	// make sure it comes back after a while
+	setTimeout(function () {
+		docEl.style.marginTop = '';
+	}, 20000);
+	
+	return function () {
+		if (!nativeSupport()) { // if browser doesn't support media queries
+			cssHelper.addListener('newStyleParsed', function (el) {
+				testMediaQueryLists(el.cssHelperParsed.mediaQueryLists);
+			});
+			// return visibility after media queries are tested
+			cssHelper.addListener('cssMediaQueriesTested', function () {
+				// force repaint in IE by changing width
+				if (ua.ie) {
+					docEl.style.width = '1px';
+				}
+				setTimeout(function () {
+					docEl.style.width = ''; // undo width
+					docEl.style.marginLeft = ''; // undo hide
+				}, 0);
+				// remove this listener to prevent following execution
+				cssHelper.removeListener('cssMediaQueriesTested', arguments.callee);
+			});
+			createMeter();
+			test();
+		}
+		else {
+			docEl.style.marginLeft = ''; // undo visibility hidden
+		}
+		checkForResize();
+	};
+}());
+
+
+// bonus: hotfix for IE6 SP1 (bug KB823727)
+try {
+	document.execCommand("BackgroundImageCache", false, true); 
+} catch (e) {}