/*
Holder - 2.2 - client side image placeholders(c) 2012-2013 Ivan Malopinsky / http://imsky.co
Provided under the MIT License.Commercial use requires attribution.
*/
var Holder = Holder || {};(function (app, win) {
var preempted = false,fallback = false,canvas = document.createElement('canvas');var dpr = 1, bsr = 1;var resizable_images = [];
if (!canvas.getContext) {	fallback = true;} else {	if (canvas.toDataURL("image/png")		.indexOf("data:image/png") < 0) {		//Android doesn't support data URI		fallback = true;	} else {		var ctx = canvas.getContext("2d");	}}
if(!fallback){    dpr = window.devicePixelRatio || 1,    bsr = ctx.webkitBackingStorePixelRatio || ctx.mozBackingStorePixelRatio || ctx.msBackingStorePixelRatio || ctx.oBackingStorePixelRatio || ctx.backingStorePixelRatio || 1;}
var ratio = dpr / bsr;
var settings = {	domain: "holder.js",	images: "img",	bgnodes: ".holderjs",	themes: {		"gray": {			background: "#eee",			foreground: "#aaa",			size: 12		},		"social": {			background: "#3a5a97",			foreground: "#fff",			size: 12		},		"industrial": {			background: "#434A52",			foreground: "#C2F200",			size: 12		},		"sky": {			background: "#0D8FDB",			foreground: "#fff",			size: 12		},		"vine": {			background: "#39DBAC",			foreground: "#1E292C",			size: 12		},		"lava": {			background: "#F8591A",			foreground: "#1C2846",			size: 12		}	},	stylesheet: ""};app.flags = {	dimensions: {		regex: /^(\d+)x(\d+)$/,		output: function (val) {			var exec = this.regex.exec(val);			return {				width: +exec[1],				height: +exec[2]			}		}	},	fluid: {		regex: /^([0-9%]+)x([0-9%]+)$/,		output: function (val) {			var exec = this.regex.exec(val);			return {				width: exec[1],				height: exec[2]			}		}	},	colors: {		regex: /#([0-9a-f]{3,})\:#([0-9a-f]{3,})/i,		output: function (val) {			var exec = this.regex.exec(val);			return {				size: settings.themes.gray.size,				foreground: "#" + exec[2],				background: "#" + exec[1]			}		}	},	text: {		regex: /text\:(.*)/,		output: function (val) {			return this.regex.exec(val)[1];		}	},	font: {		regex: /font\:(.*)/,		output: function (val) {			return this.regex.exec(val)[1];		}	},	auto: {		regex: /^auto$/	},	textmode: {		regex: /textmode\:(.*)/,		output: function(val){			return this.regex.exec(val)[1];		}	}}
//getElementsByClassName polyfilldocument.getElementsByClassName||(document.getElementsByClassName=function(e){var t=document,n,r,i,s=[];if(t.querySelectorAll)return t.querySelectorAll("."+e);if(t.evaluate){r=".//*[contains(concat(' ', @class, ' '), ' "+e+" ')]",n=t.evaluate(r,t,null,0,null);while(i=n.iterateNext())s.push(i)}else{n=t.getElementsByTagName("*"),r=new RegExp("(^|\\s)"+e+"(\\s|$)");for(i=0;i<n.length;i++)r.test(n[i].className)&&s.push(n[i])}return s})
//getComputedStyle polyfillwindow.getComputedStyle||(window.getComputedStyle=function(e){return this.el=e,this.getPropertyValue=function(t){var n=/(\-([a-z]){1})/g;return t=="float"&&(t="styleFloat"),n.test(t)&&(t=t.replace(n,function(){return arguments[2].toUpperCase()})),e.currentStyle[t]?e.currentStyle[t]:null},this})
//http://javascript.nwbox.com/ContentLoaded by Diego Perini with modificationsfunction contentLoaded(n,t){var l="complete",s="readystatechange",u=!1,h=u,c=!0,i=n.document,a=i.documentElement,e=i.addEventListener?"addEventListener":"attachEvent",v=i.addEventListener?"removeEventListener":"detachEvent",f=i.addEventListener?"":"on",r=function(e){(e.type!=s||i.readyState==l)&&((e.type=="load"?n:i)[v](f+e.type,r,u),!h&&(h=!0)&&t.call(n,null))},o=function(){try{a.doScroll("left")}catch(n){setTimeout(o,50);return}r("poll")};if(i.readyState==l)t.call(n,"lazy");else{if(i.createEventObject&&a.doScroll){try{c=!n.frameElement}catch(y){}c&&o()}i[e](f+"DOMContentLoaded",r,u),i[e](f+s,r,u),n[e](f+"load",r,u)}}
//https://gist.github.com/991057 by Jed Schmidt with modificationsfunction selector(a){	a=a.match(/^(\W)?(.*)/);var b=document["getElement"+(a[1]?a[1]=="#"?"ById":"sByClassName":"sByTagName")](a[2]);	var ret=[];	b!==null&&(b.length?ret=b:b.length===0?ret=b:ret=[b]);	return ret;}
//shallow object property extendfunction extend(a,b){	var c={};	for(var i in a){		if(a.hasOwnProperty(i)){			c[i]=a[i];		}	}	for(var i in b){		if(b.hasOwnProperty(i)){			c[i]=b[i];		}	}	return c}
//hasOwnProperty polyfillif (!Object.prototype.hasOwnProperty)    /*jshint -W001, -W103 */    Object.prototype.hasOwnProperty = function(prop) {		var proto = this.__proto__ || this.constructor.prototype;		return (prop in this) && (!(prop in proto) || proto[prop] !== this[prop]);	}    /*jshint +W001, +W103 */
function text_size(width, height, template) {	height = parseInt(height, 10);	width = parseInt(width, 10);	var bigSide = Math.max(height, width)	var smallSide = Math.min(height, width)	var scale = 1 / 12;	var newHeight = Math.min(smallSide * 0.75, 0.75 * bigSide * scale);	return {		height: Math.round(Math.max(template.size, newHeight))	}}
function draw(args) {	var ctx = args.ctx;	var dimensions = args.dimensions;	var template = args.template;	var ratio = args.ratio;	var holder = args.holder;	var literal = holder.textmode == "literal";	var exact = holder.textmode == "exact";
	var ts = text_size(dimensions.width, dimensions.height, template);	var text_height = ts.height;	var width = dimensions.width * ratio,		height = dimensions.height * ratio;	var font = template.font ? template.font : "sans-serif";	canvas.width = width;	canvas.height = height;	ctx.textAlign = "center";	ctx.textBaseline = "middle";	ctx.fillStyle = template.background;	ctx.fillRect(0, 0, width, height);	ctx.fillStyle = template.foreground;	ctx.font = "bold " + text_height + "px " + font;	var text = template.text ? template.text : (Math.floor(dimensions.width) + "x" + Math.floor(dimensions.height));	if (literal) {		var dimensions = holder.dimensions;		text = dimensions.width + "x" + dimensions.height;	}	else if(exact && holder.exact_dimensions){		var dimensions = holder.exact_dimensions;		text = (Math.floor(dimensions.width) + "x" + Math.floor(dimensions.height));	}	var text_width = ctx.measureText(text).width;	if (text_width / width >= 0.75) {		text_height = Math.floor(text_height * 0.75 * (width / text_width));	}	//Resetting font size if necessary	ctx.font = "bold " + (text_height * ratio) + "px " + font;	ctx.fillText(text, (width / 2), (height / 2), width);	return canvas.toDataURL("image/png");}
function render(mode, el, holder, src) {		var dimensions = holder.dimensions,		theme = holder.theme,		text = holder.text ? decodeURIComponent(holder.text) : holder.text;	var dimensions_caption = dimensions.width + "x" + dimensions.height;	theme = (text ? extend(theme, {		text: text	}) : theme);	theme = (holder.font ? extend(theme, {		font: holder.font	}) : theme);	el.setAttribute("data-src", src);	holder.theme = theme;	el.holder_data = holder;		if (mode == "image") {		el.setAttribute("alt", text ? text : theme.text ? theme.text + " [" + dimensions_caption + "]" : dimensions_caption);		if (fallback || !holder.auto) {			el.style.width = dimensions.width + "px";			el.style.height = dimensions.height + "px";		}		if (fallback) {			el.style.backgroundColor = theme.background;		} else {			el.setAttribute("src", draw({ctx: ctx, dimensions: dimensions, template: theme, ratio:ratio, holder: holder}));						if(holder.textmode && holder.textmode == "exact"){				resizable_images.push(el);				resizable_update(el);			}					}	} else if (mode == "background") {		if (!fallback) {			el.style.backgroundImage = "url(" + draw({ctx:ctx, dimensions: dimensions, template: theme, ratio: ratio, holder: holder}) + ")";			el.style.backgroundSize = dimensions.width + "px " + dimensions.height + "px";		}	} else if (mode == "fluid") {		el.setAttribute("alt", text ? text : theme.text ? theme.text + " [" + dimensions_caption + "]" : dimensions_caption);		if (dimensions.height.slice(-1) == "%") {			el.style.height = dimensions.height		} else {			el.style.height = dimensions.height + "px"		}		if (dimensions.width.slice(-1) == "%") {			el.style.width = dimensions.width		} else {			el.style.width = dimensions.width + "px"		}		if (el.style.display == "inline" || el.style.display === "" || el.style.display == "none") {			el.style.display = "block";		}		if (fallback) {			el.style.backgroundColor = theme.background;		} else {			resizable_images.push(el);			resizable_update(el);		}	}}
function dimension_check(el, callback) {	var dimensions = {		height: el.clientHeight,		width: el.clientWidth	};	if (!dimensions.height && !dimensions.width) {		if (el.hasAttribute("data-holder-invisible")) {			throw new Error("Holder: placeholder is not visible");		} else {			el.setAttribute("data-holder-invisible", true)			setTimeout(function () {				callback.call(this, el)			}, 1)			return null;		}	} else {		el.removeAttribute("data-holder-invisible")	}	return dimensions;}
function resizable_update(element) {	var images;	if (element.nodeType == null) {		images = resizable_images;	} else {		images = [element]	}	for (var i in images) {		if (!images.hasOwnProperty(i)) {			continue;		}		var el = images[i]		if (el.holder_data) {			var holder = el.holder_data;			var dimensions = dimension_check(el, resizable_update)			if(dimensions){				if(holder.fluid){					el.setAttribute("src", draw({						ctx: ctx,						dimensions: dimensions,						template: holder.theme,						ratio: ratio,						holder: holder					}))				}				if(holder.textmode && holder.textmode == "exact"){					holder.exact_dimensions = dimensions;					el.setAttribute("src", draw({						ctx: ctx,						dimensions: holder.dimensions,						template: holder.theme,						ratio: ratio,						holder: holder					}))				}			}		}	}}
function parse_flags(flags, options) {	var ret = {		theme: extend(settings.themes.gray, {})	};	var render = false;	for (sl = flags.length, j = 0; j < sl; j++) {		var flag = flags[j];		if (app.flags.dimensions.match(flag)) {			render = true;			ret.dimensions = app.flags.dimensions.output(flag);		} else if (app.flags.fluid.match(flag)) {			render = true;			ret.dimensions = app.flags.fluid.output(flag);			ret.fluid = true;		} else if (app.flags.textmode.match(flag)) {			ret.textmode = app.flags.textmode.output(flag)		} else if (app.flags.colors.match(flag)) {			ret.theme = app.flags.colors.output(flag);		} else if (options.themes[flag]) {			//If a theme is specified, it will override custom colors			if(options.themes.hasOwnProperty(flag)){				ret.theme = extend(options.themes[flag], {});			}		} else if (app.flags.font.match(flag)) {			ret.font = app.flags.font.output(flag);		} else if (app.flags.auto.match(flag)) {			ret.auto = true;		} else if (app.flags.text.match(flag)) {			ret.text = app.flags.text.output(flag);		}	}	return render ? ret : false;}
for (var flag in app.flags) {	if (!app.flags.hasOwnProperty(flag)) continue;	app.flags[flag].match = function (val) {		return val.match(this.regex)	}}app.add_theme = function (name, theme) {	name != null && theme != null && (settings.themes[name] = theme);	return app;};app.add_image = function (src, el) {	var node = selector(el);	if (node.length) {		for (var i = 0, l = node.length; i < l; i++) {			var img = document.createElement("img")			img.setAttribute("data-src", src);			node[i].appendChild(img);		}	}	return app;};app.run = function (o) {	preempted = true;		var options = extend(settings, o),		images = [],		imageNodes = [],		bgnodes = [];	if (typeof (options.images) == "string") {		imageNodes = selector(options.images);	} else if (window.NodeList && options.images instanceof window.NodeList) {		imageNodes = options.images;	} else if (window.Node && options.images instanceof window.Node) {		imageNodes = [options.images];	}		if (typeof (options.bgnodes) == "string") {		bgnodes = selector(options.bgnodes);	} else if (window.NodeList && options.elements instanceof window.NodeList) {		bgnodes = options.bgnodes;	} else if (window.Node && options.bgnodes instanceof window.Node) {		bgnodes = [options.bgnodes];	}	for (i = 0, l = imageNodes.length; i < l; i++) images.push(imageNodes[i]);	var holdercss = document.getElementById("holderjs-style");	if (!holdercss) {		holdercss = document.createElement("style");		holdercss.setAttribute("id", "holderjs-style");		holdercss.type = "text/css";		document.getElementsByTagName("head")[0].appendChild(holdercss);	}	if (!options.nocss) {		if (holdercss.styleSheet) {			holdercss.styleSheet.cssText += options.stylesheet;		} else {			holdercss.appendChild(document.createTextNode(options.stylesheet));		}	}	var cssregex = new RegExp(options.domain + "\/(.*?)\"?\\)");	for (var l = bgnodes.length, i = 0; i < l; i++) {		var src = window.getComputedStyle(bgnodes[i], null)			.getPropertyValue("background-image");		var flags = src.match(cssregex);		var bgsrc = bgnodes[i].getAttribute("data-background-src");		if (flags) {			var holder = parse_flags(flags[1].split("/"), options);			if (holder) {				render("background", bgnodes[i], holder, src);			}		} else if (bgsrc != null) {			var holder = parse_flags(bgsrc.substr(bgsrc.lastIndexOf(options.domain) + options.domain.length + 1)				.split("/"), options);			if (holder) {				render("background", bgnodes[i], holder, src);			}		}	}	for (l = images.length, i = 0; i < l; i++) {		var attr_data_src, attr_src;		attr_src = attr_data_src = src = null;		try {			attr_src = images[i].getAttribute("src");			attr_datasrc = images[i].getAttribute("data-src");		} catch (e) {}		if (attr_datasrc == null && !! attr_src && attr_src.indexOf(options.domain) >= 0) {			src = attr_src;		} else if ( !! attr_datasrc && attr_datasrc.indexOf(options.domain) >= 0) {			src = attr_datasrc;		}		if (src) {			var holder = parse_flags(src.substr(src.lastIndexOf(options.domain) + options.domain.length + 1)				.split("/"), options);			if (holder) {				if (holder.fluid) {					render("fluid", images[i], holder, src)				} else {					render("image", images[i], holder, src);				}			}		}	}	return app;};contentLoaded(win, function () {	if (window.addEventListener) {		window.addEventListener("resize", resizable_update, false);		window.addEventListener("orientationchange", resizable_update, false);	} else {		window.attachEvent("onresize", resizable_update)	}	preempted || app.run();});if (typeof define === "function" && define.amd) {	define([], function () {		return app;	});}
})(Holder, window);