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/*!
2
 
3
Holder - 2.3.2 - client side image placeholders
4
(c) 2012-2014 Ivan Malopinsky / http://imsky.co
5
 
6
Provided under the MIT License.
7
Commercial use requires attribution.
8
 
9
*/
10
var Holder = Holder || {};
11
(function (app, win) {
12
var system_config = {
13
	use_svg: false,
14
	use_canvas: false,
15
	use_fallback: false
16
};
17
var instance_config = {};
18
var preempted = false;
19
canvas = document.createElement('canvas');
20
var dpr = 1, bsr = 1;
21
var resizable_images = [];
22
 
23
if (!canvas.getContext) {
24
	system_config.use_fallback = true;
25
} else {
26
	if (canvas.toDataURL("image/png")
27
		.indexOf("data:image/png") < 0) {
28
		//Android doesn't support data URI
29
		system_config.use_fallback = true;
30
	} else {
31
		var ctx = canvas.getContext("2d");
32
	}
33
}
34
 
35
if(!!document.createElementNS && !!document.createElementNS('http://www.w3.org/2000/svg', 'svg').createSVGRect){
36
	system_config.use_svg = true;
37
	system_config.use_canvas = false;
38
}
39
 
40
if(!system_config.use_fallback){
41
    dpr = window.devicePixelRatio || 1,
42
    bsr = ctx.webkitBackingStorePixelRatio || ctx.mozBackingStorePixelRatio || ctx.msBackingStorePixelRatio || ctx.oBackingStorePixelRatio || ctx.backingStorePixelRatio || 1;
43
}
44
 
45
var ratio = dpr / bsr;
46
 
47
var settings = {
48
	domain: "holder.js",
49
	images: "img",
50
	bgnodes: ".holderjs",
51
	themes: {
52
		"gray": {
53
			background: "#eee",
54
			foreground: "#aaa",
55
			size: 12
56
		},
57
		"social": {
58
			background: "#3a5a97",
59
			foreground: "#fff",
60
			size: 12
61
		},
62
		"industrial": {
63
			background: "#434A52",
64
			foreground: "#C2F200",
65
			size: 12
66
		},
67
		"sky": {
68
			background: "#0D8FDB",
69
			foreground: "#fff",
70
			size: 12
71
		},
72
		"vine": {
73
			background: "#39DBAC",
74
			foreground: "#1E292C",
75
			size: 12
76
		},
77
		"lava": {
78
			background: "#F8591A",
79
			foreground: "#1C2846",
80
			size: 12
81
		}
82
	},
83
	stylesheet: ""
84
};
85
app.flags = {
86
	dimensions: {
87
		regex: /^(\d+)x(\d+)$/,
88
		output: function (val) {
89
			var exec = this.regex.exec(val);
90
			return {
91
				width: +exec[1],
92
				height: +exec[2]
93
			}
94
		}
95
	},
96
	fluid: {
97
		regex: /^([0-9%]+)x([0-9%]+)$/,
98
		output: function (val) {
99
			var exec = this.regex.exec(val);
100
			return {
101
				width: exec[1],
102
				height: exec[2]
103
			}
104
		}
105
	},
106
	colors: {
107
		regex: /#([0-9a-f]{3,})\:#([0-9a-f]{3,})/i,
108
		output: function (val) {
109
			var exec = this.regex.exec(val);
110
			return {
111
				size: settings.themes.gray.size,
112
				foreground: "#" + exec[2],
113
				background: "#" + exec[1]
114
			}
115
		}
116
	},
117
	text: {
118
		regex: /text\:(.*)/,
119
		output: function (val) {
120
			return this.regex.exec(val)[1];
121
		}
122
	},
123
	font: {
124
		regex: /font\:(.*)/,
125
		output: function (val) {
126
			return this.regex.exec(val)[1];
127
		}
128
	},
129
	auto: {
130
		regex: /^auto$/
131
	},
132
	textmode: {
133
		regex: /textmode\:(.*)/,
134
		output: function(val){
135
			return this.regex.exec(val)[1];
136
		}
137
	}
138
}
139
 
140
function text_size(width, height, template) {
141
	height = parseInt(height, 10);
142
	width = parseInt(width, 10);
143
	var bigSide = Math.max(height, width)
144
	var smallSide = Math.min(height, width)
145
	var scale = 1 / 12;
146
	var newHeight = Math.min(smallSide * 0.75, 0.75 * bigSide * scale);
147
	return {
148
		height: Math.round(Math.max(template.size, newHeight))
149
	}
150
}
151
 
152
var svg_el = (function(){
153
	//Prevent IE <9 from initializing SVG renderer
154
	if(!window.XMLSerializer) return;
155
	var serializer = new XMLSerializer();
156
	var svg_ns = "http://www.w3.org/2000/svg"
157
	var svg = document.createElementNS(svg_ns, "svg");
158
	//IE throws an exception if this is set and Chrome requires it to be set
159
	if(svg.webkitMatchesSelector){
160
		svg.setAttribute("xmlns", "http://www.w3.org/2000/svg")
161
	}
162
	var bg_el = document.createElementNS(svg_ns, "rect")
163
	var text_el = document.createElementNS(svg_ns, "text")
164
	var textnode_el = document.createTextNode(null)
165
	text_el.setAttribute("text-anchor", "middle")
166
	text_el.appendChild(textnode_el)
167
	svg.appendChild(bg_el)
168
	svg.appendChild(text_el)
169
 
170
	return function(props){
171
		svg.setAttribute("width",props.width);
172
		svg.setAttribute("height", props.height);
173
		bg_el.setAttribute("width", props.width);
174
		bg_el.setAttribute("height", props.height);
175
		bg_el.setAttribute("fill", props.template.background);
176
		text_el.setAttribute("x", props.width/2)
177
		text_el.setAttribute("y", props.height/2)
178
		textnode_el.nodeValue=props.text
179
		text_el.setAttribute("style", css_properties({
180
		"fill": props.template.foreground,
181
		"font-weight": "bold",
182
		"font-size": props.text_height+"px",
183
		"font-family":props.font,
184
		"dominant-baseline":"central"
185
		}))
186
		return serializer.serializeToString(svg)
187
	}
188
})()
189
 
190
function css_properties(props){
191
	var ret = [];
192
	for(p in props){
193
		if(props.hasOwnProperty(p)){
194
			ret.push(p+":"+props[p])
195
		}
196
	}
197
	return ret.join(";")
198
}
199
 
200
function draw_canvas(args) {
201
	var ctx = args.ctx,
202
		dimensions = args.dimensions,
203
		template = args.template,
204
		ratio = args.ratio,
205
		holder = args.holder,
206
		literal = holder.textmode == "literal",
207
		exact = holder.textmode == "exact";
208
 
209
	var ts = text_size(dimensions.width, dimensions.height, template);
210
	var text_height = ts.height;
211
	var width = dimensions.width * ratio,
212
		height = dimensions.height * ratio;
213
	var font = template.font ? template.font : "Arial,Helvetica,sans-serif";
214
	canvas.width = width;
215
	canvas.height = height;
216
	ctx.textAlign = "center";
217
	ctx.textBaseline = "middle";
218
	ctx.fillStyle = template.background;
219
	ctx.fillRect(0, 0, width, height);
220
	ctx.fillStyle = template.foreground;
221
	ctx.font = "bold " + text_height + "px " + font;
222
	var text = template.text ? template.text : (Math.floor(dimensions.width) + "x" + Math.floor(dimensions.height));
223
	if (literal) {
224
		var dimensions = holder.dimensions;
225
		text = dimensions.width + "x" + dimensions.height;
226
	}
227
	else if(exact && holder.exact_dimensions){
228
		var dimensions = holder.exact_dimensions;
229
		text = (Math.floor(dimensions.width) + "x" + Math.floor(dimensions.height));
230
	}
231
	var text_width = ctx.measureText(text).width;
232
	if (text_width / width >= 0.75) {
233
		text_height = Math.floor(text_height * 0.75 * (width / text_width));
234
	}
235
	//Resetting font size if necessary
236
	ctx.font = "bold " + (text_height * ratio) + "px " + font;
237
	ctx.fillText(text, (width / 2), (height / 2), width);
238
	return canvas.toDataURL("image/png");
239
}
240
 
241
function draw_svg(args){
242
	var dimensions = args.dimensions,
243
		template = args.template,
244
		holder = args.holder,
245
		literal = holder.textmode == "literal",
246
		exact = holder.textmode == "exact";
247
 
248
	var ts = text_size(dimensions.width, dimensions.height, template);
249
	var text_height = ts.height;
250
	var width = dimensions.width,
251
		height = dimensions.height;
252
 
253
	var font = template.font ? template.font : "Arial,Helvetica,sans-serif";
254
	var text = template.text ? template.text : (Math.floor(dimensions.width) + "x" + Math.floor(dimensions.height));
255
 
256
	if (literal) {
257
		var dimensions = holder.dimensions;
258
		text = dimensions.width + "x" + dimensions.height;
259
	}
260
	else if(exact && holder.exact_dimensions){
261
		var dimensions = holder.exact_dimensions;
262
		text = (Math.floor(dimensions.width) + "x" + Math.floor(dimensions.height));
263
	}
264
	var string = svg_el({
265
		text: text,
266
		width:width,
267
		height:height,
268
		text_height:text_height,
269
		font:font,
270
		template:template
271
	})
272
	return "data:image/svg+xml;base64,"+btoa(unescape(encodeURIComponent(string)));
273
}
274
 
275
function draw(args) {
276
	if(instance_config.use_canvas && !instance_config.use_svg){
277
		return draw_canvas(args);
278
	}
279
	else{
280
		return draw_svg(args);
281
	}
282
}
283
 
284
function render(mode, el, holder, src) {
285
	var dimensions = holder.dimensions,
286
		theme = holder.theme,
287
		text = holder.text ? decodeURIComponent(holder.text) : holder.text;
288
	var dimensions_caption = dimensions.width + "x" + dimensions.height;
289
	theme = (text ? extend(theme, {
290
		text: text
291
	}) : theme);
292
	theme = (holder.font ? extend(theme, {
293
		font: holder.font
294
	}) : theme);
295
	el.setAttribute("data-src", src);
296
	holder.theme = theme;
297
	el.holder_data = holder;
298
 
299
	if (mode == "image") {
300
		el.setAttribute("alt", text ? text : theme.text ? theme.text + " [" + dimensions_caption + "]" : dimensions_caption);
301
		if (instance_config.use_fallback || !holder.auto) {
302
			el.style.width = dimensions.width + "px";
303
			el.style.height = dimensions.height + "px";
304
		}
305
		if (instance_config.use_fallback) {
306
			el.style.backgroundColor = theme.background;
307
		} else {
308
			el.setAttribute("src", draw({ctx: ctx, dimensions: dimensions, template: theme, ratio:ratio, holder: holder}));
309
 
310
			if(holder.textmode && holder.textmode == "exact"){
311
				resizable_images.push(el);
312
				resizable_update(el);
313
			}
314
 
315
		}
316
	} else if (mode == "background") {
317
		if (!instance_config.use_fallback) {
318
			el.style.backgroundImage = "url(" + draw({ctx:ctx, dimensions: dimensions, template: theme, ratio: ratio, holder: holder}) + ")";
319
			el.style.backgroundSize = dimensions.width + "px " + dimensions.height + "px";
320
		}
321
	} else if (mode == "fluid") {
322
		el.setAttribute("alt", text ? text : theme.text ? theme.text + " [" + dimensions_caption + "]" : dimensions_caption);
323
		if (dimensions.height.slice(-1) == "%") {
324
			el.style.height = dimensions.height
325
		} else if(holder.auto == null || !holder.auto){
326
			el.style.height = dimensions.height + "px"
327
		}
328
		if (dimensions.width.slice(-1) == "%") {
329
			el.style.width = dimensions.width
330
		} else if(holder.auto == null || !holder.auto){
331
			el.style.width = dimensions.width + "px"
332
		}
333
		if (el.style.display == "inline" || el.style.display === "" || el.style.display == "none") {
334
			el.style.display = "block";
335
		}
336
 
337
		set_initial_dimensions(el)
338
 
339
		if (instance_config.use_fallback) {
340
			el.style.backgroundColor = theme.background;
341
		} else {
342
			resizable_images.push(el);
343
			resizable_update(el);
344
		}
345
	}
346
}
347
 
348
function dimension_check(el, callback) {
349
	var dimensions = {
350
		height: el.clientHeight,
351
		width: el.clientWidth
352
	};
353
	if (!dimensions.height && !dimensions.width) {
354
		el.setAttribute("data-holder-invisible", true)
355
		callback.call(this, el)
356
	}
357
	else{
358
		el.removeAttribute("data-holder-invisible")
359
		return dimensions;
360
	}
361
}
362
 
363
function set_initial_dimensions(el){
364
	if(el.holder_data){
365
		var dimensions = dimension_check(el, app.invisible_error_fn( set_initial_dimensions))
366
		if(dimensions){
367
			var holder = el.holder_data;
368
			holder.initial_dimensions = dimensions;
369
			holder.fluid_data = {
370
				fluid_height: holder.dimensions.height.slice(-1) == "%",
371
				fluid_width: holder.dimensions.width.slice(-1) == "%",
372
				mode: null
373
			}
374
			if(holder.fluid_data.fluid_width && !holder.fluid_data.fluid_height){
375
				holder.fluid_data.mode = "width"
376
				holder.fluid_data.ratio = holder.initial_dimensions.width / parseFloat(holder.dimensions.height)
377
			}
378
			else if(!holder.fluid_data.fluid_width && holder.fluid_data.fluid_height){
379
				holder.fluid_data.mode = "height";
380
				holder.fluid_data.ratio = parseFloat(holder.dimensions.width) / holder.initial_dimensions.height
381
			}
382
		}
383
	}
384
}
385
 
386
function resizable_update(element) {
387
	var images;
388
	if (element.nodeType == null) {
389
		images = resizable_images;
390
	} else {
391
		images = [element]
392
	}
393
	for (var i in images) {
394
		if (!images.hasOwnProperty(i)) {
395
			continue;
396
		}
397
		var el = images[i]
398
		if (el.holder_data) {
399
			var holder = el.holder_data;
400
			var dimensions = dimension_check(el, app.invisible_error_fn( resizable_update))
401
			if(dimensions){
402
				if(holder.fluid){
403
					if(holder.auto){
404
						switch(holder.fluid_data.mode){
405
							case "width":
406
								dimensions.height = dimensions.width / holder.fluid_data.ratio;
407
							break;
408
							case "height":
409
								dimensions.width = dimensions.height * holder.fluid_data.ratio;
410
							break;
411
						}
412
					}
413
					el.setAttribute("src", draw({
414
						ctx: ctx,
415
						dimensions: dimensions,
416
						template: holder.theme,
417
						ratio: ratio,
418
						holder: holder
419
					}))
420
				}
421
				if(holder.textmode && holder.textmode == "exact"){
422
					holder.exact_dimensions = dimensions;
423
					el.setAttribute("src", draw({
424
						ctx: ctx,
425
						dimensions: holder.dimensions,
426
						template: holder.theme,
427
						ratio: ratio,
428
						holder: holder
429
					}))
430
				}
431
			}
432
		}
433
	}
434
}
435
 
436
function parse_flags(flags, options) {
437
	var ret = {
438
		theme: extend(settings.themes.gray, {})
439
	};
440
	var render = false;
441
	for (var fl = flags.length, j = 0; j < fl; j++) {
442
		var flag = flags[j];
443
		if (app.flags.dimensions.match(flag)) {
444
			render = true;
445
			ret.dimensions = app.flags.dimensions.output(flag);
446
		} else if (app.flags.fluid.match(flag)) {
447
			render = true;
448
			ret.dimensions = app.flags.fluid.output(flag);
449
			ret.fluid = true;
450
		} else if (app.flags.textmode.match(flag)) {
451
			ret.textmode = app.flags.textmode.output(flag)
452
		} else if (app.flags.colors.match(flag)) {
453
			ret.theme = app.flags.colors.output(flag);
454
		} else if (options.themes[flag]) {
455
			//If a theme is specified, it will override custom colors
456
			if(options.themes.hasOwnProperty(flag)){
457
				ret.theme = extend(options.themes[flag], {});
458
			}
459
		} else if (app.flags.font.match(flag)) {
460
			ret.font = app.flags.font.output(flag);
461
		} else if (app.flags.auto.match(flag)) {
462
			ret.auto = true;
463
		} else if (app.flags.text.match(flag)) {
464
			ret.text = app.flags.text.output(flag);
465
		}
466
	}
467
	return render ? ret : false;
468
}
469
 
470
for (var flag in app.flags) {
471
	if (!app.flags.hasOwnProperty(flag)) continue;
472
	app.flags[flag].match = function (val) {
473
		return val.match(this.regex)
474
	}
475
}
476
 
477
app.invisible_error_fn = function(fn){
478
	return function(el){
479
		if(el.hasAttribute("data-holder-invisible")){
480
			throw new Error("Holder: invisible placeholder")
481
		}
482
	}
483
}
484
 
485
app.add_theme = function (name, theme) {
486
	name != null && theme != null && (settings.themes[name] = theme);
487
	return app;
488
};
489
 
490
app.add_image = function (src, el) {
491
	var node = selector(el);
492
	if (node.length) {
493
		for (var i = 0, l = node.length; i < l; i++) {
494
			var img = document.createElement("img")
495
			img.setAttribute("data-src", src);
496
			node[i].appendChild(img);
497
		}
498
	}
499
	return app;
500
};
501
 
502
app.run = function (o) {
503
 
504
	instance_config = extend({}, system_config)
505
	preempted = true;
506
 
507
	var options = extend(settings, o),
508
		images = [],
509
		imageNodes = [],
510
		bgnodes = [];
511
 
512
	if(options.use_canvas != null && options.use_canvas){
513
		instance_config.use_canvas = true;
514
		instance_config.use_svg = false;
515
	}
516
 
517
	if (typeof (options.images) == "string") {
518
		imageNodes = selector(options.images);
519
	} else if (window.NodeList && options.images instanceof window.NodeList) {
520
		imageNodes = options.images;
521
	} else if (window.Node && options.images instanceof window.Node) {
522
		imageNodes = [options.images];
523
	} else if(window.HTMLCollection && options.images instanceof window.HTMLCollection){
524
		imageNodes = options.images
525
	}
526
 
527
	if (typeof (options.bgnodes) == "string") {
528
		bgnodes = selector(options.bgnodes);
529
	} else if (window.NodeList && options.elements instanceof window.NodeList) {
530
		bgnodes = options.bgnodes;
531
	} else if (window.Node && options.bgnodes instanceof window.Node) {
532
		bgnodes = [options.bgnodes];
533
	}
534
	for (i = 0, l = imageNodes.length; i < l; i++) images.push(imageNodes[i]);
535
 
536
	var holdercss = document.getElementById("holderjs-style");
537
	if (!holdercss) {
538
		holdercss = document.createElement("style");
539
		holdercss.setAttribute("id", "holderjs-style");
540
		holdercss.type = "text/css";
541
		document.getElementsByTagName("head")[0].appendChild(holdercss);
542
	}
543
 
544
	if (!options.nocss) {
545
		if (holdercss.styleSheet) {
546
			holdercss.styleSheet.cssText += options.stylesheet;
547
		} else {
548
			if(options.stylesheet.length){
549
				holdercss.appendChild(document.createTextNode(options.stylesheet));
550
			}
551
		}
552
	}
553
 
554
	var cssregex = new RegExp(options.domain + "\/(.*?)\"?\\)");
555
	for (var l = bgnodes.length, i = 0; i < l; i++) {
556
		var src = window.getComputedStyle(bgnodes[i], null)
557
			.getPropertyValue("background-image");
558
		var flags = src.match(cssregex);
559
		var bgsrc = bgnodes[i].getAttribute("data-background-src");
560
		if (flags) {
561
			var holder = parse_flags(flags[1].split("/"), options);
562
			if (holder) {
563
				render("background", bgnodes[i], holder, src);
564
			}
565
		} else if (bgsrc != null) {
566
			var holder = parse_flags(bgsrc.substr(bgsrc.lastIndexOf(options.domain) + options.domain.length + 1)
567
				.split("/"), options);
568
			if (holder) {
569
				render("background", bgnodes[i], holder, src);
570
			}
571
		}
572
	}
573
	for (l = images.length, i = 0; i < l; i++) {
574
		var attr_data_src, attr_src;
575
		attr_src = attr_data_src = src = null;
576
		try {
577
			attr_src = images[i].getAttribute("src");
578
			attr_datasrc = images[i].getAttribute("data-src");
579
		} catch (e) {}
580
		if (attr_datasrc == null && !! attr_src && attr_src.indexOf(options.domain) >= 0) {
581
			src = attr_src;
582
		} else if ( !! attr_datasrc && attr_datasrc.indexOf(options.domain) >= 0) {
583
			src = attr_datasrc;
584
		}
585
		if (src) {
586
			var holder = parse_flags(src.substr(src.lastIndexOf(options.domain) + options.domain.length + 1).split("/"), options);
587
			if (holder) {
588
				if (holder.fluid) {
589
					render("fluid", images[i], holder, src)
590
				} else {
591
					render("image", images[i], holder, src);
592
				}
593
			}
594
		}
595
	}
596
	return app;
597
};
598
 
599
contentLoaded(win, function () {
600
	if (window.addEventListener) {
601
		window.addEventListener("resize", resizable_update, false);
602
		window.addEventListener("orientationchange", resizable_update, false);
603
	} else {
604
		window.attachEvent("onresize", resizable_update)
605
	}
606
	preempted || app.run({});
607
 
608
	if (typeof window.Turbolinks === "object") {
609
		document.addEventListener("page:change", function() { app.run({}) })
610
	}
611
});
612
if (typeof define === "function" && define.amd) {
613
	define([], function () {
614
		return app;
615
	});
616
}
617
 
618
//github.com/davidchambers/Base64.js
619
(function(){function t(t){this.message=t}var e="undefined"!=typeof exports?exports:this,r="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";t.prototype=Error(),t.prototype.name="InvalidCharacterError",e.btoa||(e.btoa=function(e){for(var o,n,a=0,i=r,c="";e.charAt(0|a)||(i="=",a%1);c+=i.charAt(63&o>>8-8*(a%1))){if(n=e.charCodeAt(a+=.75),n>255)throw new t("'btoa' failed");o=o<<8|n}return c}),e.atob||(e.atob=function(e){if(e=e.replace(/=+$/,""),1==e.length%4)throw new t("'atob' failed");for(var o,n,a=0,i=0,c="";n=e.charAt(i++);~n&&(o=a%4?64*o+n:n,a++%4)?c+=String.fromCharCode(255&o>>(6&-2*a)):0)n=r.indexOf(n);return c})})();
620
 
621
//getElementsByClassName polyfill
622
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})
623
 
624
//getComputedStyle polyfill
625
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})
626
 
627
//http://javascript.nwbox.com/ContentLoaded by Diego Perini with modifications
628
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)}}
629
 
630
//https://gist.github.com/991057 by Jed Schmidt with modifications
631
function selector(a,b){var a=a.match(/^(\W)?(.*)/),b=b||document,c=b["getElement"+(a[1]?"#"==a[1]?"ById":"sByClassName":"sByTagName")],d=c.call(b,a[2]),e=[];return null!==d&&(e=d.length||0===d.length?d:[d]),e}
632
 
633
//shallow object property extend
634
function extend(a,b){
635
	var c={};
636
	for(var i in a){
637
		if(a.hasOwnProperty(i)){
638
			c[i]=a[i];
639
		}
640
	}
641
	for(var i in b){
642
		if(b.hasOwnProperty(i)){
643
			c[i]=b[i];
644
		}
645
	}
646
	return c
647
}
648
 
649
//hasOwnProperty polyfill
650
if (!Object.prototype.hasOwnProperty)
651
    /*jshint -W001, -W103 */
652
    Object.prototype.hasOwnProperty = function(prop) {
653
		var proto = this.__proto__ || this.constructor.prototype;
654
		return (prop in this) && (!(prop in proto) || proto[prop] !== this[prop]);
655
	}
656
    /*jshint +W001, +W103 */
657
 
658
})(Holder, window);