text: /*
  
  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 polyfill
  document.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 polyfill
  window.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 modifications
  function 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 modifications
  function 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 extend
  function 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 polyfill
  if (!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);
  