/**
 * @preserve HTML5 Shiv 3.7.3 | @afarkas @jdalton @jon_neal @rem | MIT/GPL2 Licensed
 */
(function (window, document) {
	/*jshint evil:true */
	/** version */
	var version = "3.7.3";

	/** Preset options */
	var options = window.html5 || {};

	/** Used to skip problem elements */
	var reSkip =
		/^<|^(?:button|map|select|textarea|object|iframe|option|optgroup)$/i;

	/** Not all elements can be cloned in IE **/
	var saveClones =
		/^(?:a|b|code|div|fieldset|h1|h2|h3|h4|h5|h6|i|label|li|ol|p|q|span|strong|style|table|tbody|td|th|tr|ul)$/i;

	/** Detect whether the browser supports default html5 styles */
	var supportsHtml5Styles;

	/** Name of the expando, to work with multiple documents or to re-shiv one document */
	var expando = "_html5shiv";

	/** The id for the the documents expando */
	var expanID = 0;

	/** Cached data for each document */
	var expandoData = {};

	/** Detect whether the browser supports unknown elements */
	var supportsUnknownElements;

	(function () {
		try {
			var a = document.createElement("a");
			a.innerHTML = "<xyz></xyz>";
			//if the hidden property is implemented we can assume, that the browser supports basic HTML5 Styles
			supportsHtml5Styles = "hidden" in a;

			supportsUnknownElements =
				a.childNodes.length == 1 ||
				(function () {
					// assign a false positive if unable to shiv
					document.createElement("a");
					var frag = document.createDocumentFragment();
					return (
						typeof frag.cloneNode == "undefined" ||
						typeof frag.createDocumentFragment == "undefined" ||
						typeof frag.createElement == "undefined"
					);
				})();
		} catch (e) {
			// assign a false positive if detection fails => unable to shiv
			supportsHtml5Styles = true;
			supportsUnknownElements = true;
		}
	})();

	/*--------------------------------------------------------------------------*/

	/**
	 * Creates a style sheet with the given CSS text and adds it to the document.
	 * @private
	 * @param {Document} ownerDocument The document.
	 * @param {String} cssText The CSS text.
	 * @returns {StyleSheet} The style element.
	 */
	function addStyleSheet(ownerDocument, cssText) {
		var p = ownerDocument.createElement("p"),
			parent =
				ownerDocument.getElementsByTagName("head")[0] ||
				ownerDocument.documentElement;

		p.innerHTML = "x<style>" + cssText + "</style>";
		return parent.insertBefore(p.lastChild, parent.firstChild);
	}

	/**
	 * Returns the value of `html5.elements` as an array.
	 * @private
	 * @returns {Array} An array of shived element node names.
	 */
	function getElements() {
		var elements = html5.elements;
		return typeof elements == "string" ? elements.split(" ") : elements;
	}

	/**
	 * Extends the built-in list of html5 elements
	 * @memberOf html5
	 * @param {String|Array} newElements whitespace separated list or array of new element names to shiv
	 * @param {Document} ownerDocument The context document.
	 */
	function addElements(newElements, ownerDocument) {
		var elements = html5.elements;
		if (typeof elements != "string") {
			elements = elements.join(" ");
		}
		if (typeof newElements != "string") {
			newElements = newElements.join(" ");
		}
		html5.elements = elements + " " + newElements;
		shivDocument(ownerDocument);
	}

	/**
	 * Returns the data associated to the given document
	 * @private
	 * @param {Document} ownerDocument The document.
	 * @returns {Object} An object of data.
	 */
	function getExpandoData(ownerDocument) {
		var data = expandoData[ownerDocument[expando]];
		if (!data) {
			data = {};
			expanID++;
			ownerDocument[expando] = expanID;
			expandoData[expanID] = data;
		}
		return data;
	}

	/**
	 * returns a shived element for the given nodeName and document
	 * @memberOf html5
	 * @param {String} nodeName name of the element
	 * @param {Document} ownerDocument The context document.
	 * @returns {Object} The shived element.
	 */
	function createElement(nodeName, ownerDocument, data) {
		if (!ownerDocument) {
			ownerDocument = document;
		}
		if (supportsUnknownElements) {
			return ownerDocument.createElement(nodeName);
		}
		if (!data) {
			data = getExpandoData(ownerDocument);
		}
		var node;

		if (data.cache[nodeName]) {
			node = data.cache[nodeName].cloneNode();
		} else if (saveClones.test(nodeName)) {
			node = (data.cache[nodeName] = data.createElem(nodeName)).cloneNode();
		} else {
			node = data.createElem(nodeName);
		}

		// Avoid adding some elements to fragments in IE < 9 because
		// * Attributes like `name` or `type` cannot be set/changed once an element
		//   is inserted into a document/fragment
		// * Link elements with `src` attributes that are inaccessible, as with
		//   a 403 response, will cause the tab/window to crash
		// * Script elements appended to fragments will execute when their `src`
		//   or `text` property is set
		return node.canHaveChildren && !reSkip.test(nodeName) && !node.tagUrn
			? data.frag.appendChild(node)
			: node;
	}

	/**
	 * returns a shived DocumentFragment for the given document
	 * @memberOf html5
	 * @param {Document} ownerDocument The context document.
	 * @returns {Object} The shived DocumentFragment.
	 */
	function createDocumentFragment(ownerDocument, data) {
		if (!ownerDocument) {
			ownerDocument = document;
		}
		if (supportsUnknownElements) {
			return ownerDocument.createDocumentFragment();
		}
		data = data || getExpandoData(ownerDocument);
		var clone = data.frag.cloneNode(),
			i = 0,
			elems = getElements(),
			l = elems.length;
		for (; i < l; i++) {
			clone.createElement(elems[i]);
		}
		return clone;
	}

	/**
	 * Shivs the `createElement` and `createDocumentFragment` methods of the document.
	 * @private
	 * @param {Document|DocumentFragment} ownerDocument The document.
	 * @param {Object} data of the document.
	 */
	function shivMethods(ownerDocument, data) {
		if (!data.cache) {
			data.cache = {};
			data.createElem = ownerDocument.createElement;
			data.createFrag = ownerDocument.createDocumentFragment;
			data.frag = data.createFrag();
		}

		ownerDocument.createElement = function (nodeName) {
			//abort shiv
			if (!html5.shivMethods) {
				return data.createElem(nodeName);
			}
			return createElement(nodeName, ownerDocument, data);
		};

		ownerDocument.createDocumentFragment = Function(
			"h,f",
			"return function(){" +
				"var n=f.cloneNode(),c=n.createElement;" +
				"h.shivMethods&&(" +
				// unroll the `createElement` calls
				getElements()
					.join()
					.replace(/[\w\-:]+/g, function (nodeName) {
						data.createElem(nodeName);
						data.frag.createElement(nodeName);
						return 'c("' + nodeName + '")';
					}) +
				");return n}",
		)(html5, data.frag);
	}

	/*--------------------------------------------------------------------------*/

	/**
	 * Shivs the given document.
	 * @memberOf html5
	 * @param {Document} ownerDocument The document to shiv.
	 * @returns {Document} The shived document.
	 */
	function shivDocument(ownerDocument) {
		if (!ownerDocument) {
			ownerDocument = document;
		}
		var data = getExpandoData(ownerDocument);

		if (html5.shivCSS && !supportsHtml5Styles && !data.hasCSS) {
			data.hasCSS = !!addStyleSheet(
				ownerDocument,
				// corrects block display not defined in IE6/7/8/9
				"article,aside,dialog,figcaption,figure,footer,header,hgroup,main,nav,section{display:block}" +
					// adds styling not present in IE6/7/8/9
					"mark{background:#FF0;color:#000}" +
					// hides non-rendered elements
					"template{display:none}",
			);
		}
		if (!supportsUnknownElements) {
			shivMethods(ownerDocument, data);
		}
		return ownerDocument;
	}

	/*--------------------------------------------------------------------------*/

	/**
	 * The `html5` object is exposed so that more elements can be shived and
	 * existing shiving can be detected on iframes.
	 * @type Object
	 * @example
	 *
	 * // options can be changed before the script is included
	 * html5 = { 'elements': 'mark section', 'shivCSS': false, 'shivMethods': false };
	 */
	var html5 = {
		/**
		 * An array or space separated string of node names of the elements to shiv.
		 * @memberOf html5
		 * @type Array|String
		 */
		elements:
			options.elements ||
			"abbr article aside audio bdi canvas data datalist details dialog figcaption figure footer header hgroup main mark meter nav output picture progress section summary template time video",

		/**
		 * current version of html5shiv
		 */
		version: version,

		/**
		 * A flag to indicate that the HTML5 style sheet should be inserted.
		 * @memberOf html5
		 * @type Boolean
		 */
		shivCSS: options.shivCSS !== false,

		/**
		 * Is equal to true if a browser supports creating unknown/HTML5 elements
		 * @memberOf html5
		 * @type boolean
		 */
		supportsUnknownElements: supportsUnknownElements,

		/**
		 * A flag to indicate that the document's `createElement` and `createDocumentFragment`
		 * methods should be overwritten.
		 * @memberOf html5
		 * @type Boolean
		 */
		shivMethods: options.shivMethods !== false,

		/**
		 * A string to describe the type of `html5` object ("default" or "default print").
		 * @memberOf html5
		 * @type String
		 */
		type: "default",

		// shivs the document according to the specified `html5` object options
		shivDocument: shivDocument,

		//creates a shived element
		createElement: createElement,

		//creates a shived documentFragment
		createDocumentFragment: createDocumentFragment,

		//extends list of elements
		addElements: addElements,
	};

	/*--------------------------------------------------------------------------*/

	// expose html5
	window.html5 = html5;

	// shiv the document
	shivDocument(document);

	/*------------------------------- Print Shiv -------------------------------*/

	/** Used to filter media types */
	var reMedia = /^$|\b(?:all|print)\b/;

	/** Used to namespace printable elements */
	var shivNamespace = "html5shiv";

	/** Detect whether the browser supports shivable style sheets */
	var supportsShivableSheets =
		!supportsUnknownElements &&
		(function () {
			// assign a false negative if unable to shiv
			var docEl = document.documentElement;
			return !(
				typeof document.namespaces == "undefined" ||
				typeof document.parentWindow == "undefined" ||
				typeof docEl.applyElement == "undefined" ||
				typeof docEl.removeNode == "undefined" ||
				typeof window.attachEvent == "undefined"
			);
		})();

	/*--------------------------------------------------------------------------*/

	/**
	 * Wraps all HTML5 elements in the given document with printable elements.
	 * (eg. the "header" element is wrapped with the "html5shiv:header" element)
	 * @private
	 * @param {Document} ownerDocument The document.
	 * @returns {Array} An array wrappers added.
	 */
	function addWrappers(ownerDocument) {
		var node,
			nodes = ownerDocument.getElementsByTagName("*"),
			index = nodes.length,
			reElements = RegExp("^(?:" + getElements().join("|") + ")$", "i"),
			result = [];

		while (index--) {
			node = nodes[index];
			if (reElements.test(node.nodeName)) {
				result.push(node.applyElement(createWrapper(node)));
			}
		}
		return result;
	}

	/**
	 * Creates a printable wrapper for the given element.
	 * @private
	 * @param {Element} element The element.
	 * @returns {Element} The wrapper.
	 */
	function createWrapper(element) {
		var node,
			nodes = element.attributes,
			index = nodes.length,
			wrapper = element.ownerDocument.createElement(
				shivNamespace + ":" + element.nodeName,
			);

		// copy element attributes to the wrapper
		while (index--) {
			node = nodes[index];
			node.specified && wrapper.setAttribute(node.nodeName, node.nodeValue);
		}
		// copy element styles to the wrapper
		wrapper.style.cssText = element.style.cssText;
		return wrapper;
	}

	/**
	 * Shivs the given CSS text.
	 * (eg. header{} becomes html5shiv\:header{})
	 * @private
	 * @param {String} cssText The CSS text to shiv.
	 * @returns {String} The shived CSS text.
	 */
	function shivCssText(cssText) {
		var pair,
			parts = cssText.split("{"),
			index = parts.length,
			reElements = RegExp(
				"(^|[\\s,>+~])(" + getElements().join("|") + ")(?=[[\\s,>+~#.:]|$)",
				"gi",
			),
			replacement = "$1" + shivNamespace + "\\:$2";

		while (index--) {
			pair = parts[index] = parts[index].split("}");
			pair[pair.length - 1] = pair[pair.length - 1].replace(
				reElements,
				replacement,
			);
			parts[index] = pair.join("}");
		}
		return parts.join("{");
	}

	/**
	 * Removes the given wrappers, leaving the original elements.
	 * @private
	 * @params {Array} wrappers An array of printable wrappers.
	 */
	function removeWrappers(wrappers) {
		var index = wrappers.length;
		while (index--) {
			wrappers[index].removeNode();
		}
	}

	/*--------------------------------------------------------------------------*/

	/**
	 * Shivs the given document for print.
	 * @memberOf html5
	 * @param {Document} ownerDocument The document to shiv.
	 * @returns {Document} The shived document.
	 */
	function shivPrint(ownerDocument) {
		var shivedSheet,
			wrappers,
			data = getExpandoData(ownerDocument),
			namespaces = ownerDocument.namespaces,
			ownerWindow = ownerDocument.parentWindow;

		if (!supportsShivableSheets || ownerDocument.printShived) {
			return ownerDocument;
		}
		if (typeof namespaces[shivNamespace] == "undefined") {
			namespaces.add(shivNamespace);
		}

		function removeSheet() {
			clearTimeout(data._removeSheetTimer);
			if (shivedSheet) {
				shivedSheet.removeNode(true);
			}
			shivedSheet = null;
		}

		ownerWindow.attachEvent("onbeforeprint", function () {
			removeSheet();

			var imports,
				length,
				sheet,
				collection = ownerDocument.styleSheets,
				cssText = [],
				index = collection.length,
				sheets = Array(index);

			// convert styleSheets collection to an array
			while (index--) {
				sheets[index] = collection[index];
			}
			// concat all style sheet CSS text
			while ((sheet = sheets.pop())) {
				// IE does not enforce a same origin policy for external style sheets...
				// but has trouble with some dynamically created stylesheets
				if (!sheet.disabled && reMedia.test(sheet.media)) {
					try {
						imports = sheet.imports;
						length = imports.length;
					} catch (er) {
						length = 0;
					}

					for (index = 0; index < length; index++) {
						sheets.push(imports[index]);
					}

					try {
						cssText.push(sheet.cssText);
					} catch (er) {}
				}
			}

			// wrap all HTML5 elements with printable elements and add the shived style sheet
			cssText = shivCssText(cssText.reverse().join(""));
			wrappers = addWrappers(ownerDocument);
			shivedSheet = addStyleSheet(ownerDocument, cssText);
		});

		ownerWindow.attachEvent("onafterprint", function () {
			// remove wrappers, leaving the original elements, and remove the shived style sheet
			removeWrappers(wrappers);
			clearTimeout(data._removeSheetTimer);
			data._removeSheetTimer = setTimeout(removeSheet, 500);
		});

		ownerDocument.printShived = true;
		return ownerDocument;
	}

	/*--------------------------------------------------------------------------*/

	// expose API
	html5.type += " print";
	html5.shivPrint = shivPrint;

	// shiv for print
	shivPrint(document);

	if (typeof module == "object" && module.exports) {
		module.exports = html5;
	}
})(typeof window !== "undefined" ? window : this, document);