text: /*
  	SuperGif
  
  	Example usage:
  
  		<img src="./example1_preview.gif" rel:animated_src="./example1.gif" width="360" height="360" rel:auto_play="1" />
  
  		<script type="text/javascript">
  			$$('img').each(function (img_tag) {
  				if (/.*\.gif/.test(img_tag.src)) {
  					var rub = new SuperGif({ gif: img_tag } );
  					rub.load();
  				}
  			});
  		</script>
  
  	Image tag attributes:
  
  		rel:animated_src -	If this url is specified, it's loaded into the player instead of src.
  							This allows a preview frame to be shown until animated gif data is streamed into the canvas
  
  		rel:auto_play -		Defaults to 1 if not specified. If set to zero, a call to the play() method is needed
  
  	Constructor options args
  
  		gif 				Required. The DOM element of an img tag.
  		auto_play 			Optional. Same as the rel:auto_play attribute above, this arg overrides the img tag info.
  		max_width			Optional. Scale images over max_width down to max_width. Helpful with mobile.
  
  	Instance methods
  
  		// loading
  		load( callback )		Loads the gif specified by the src or rel:animated_src sttributie of the img tag into a canvas element and then calls callback if one is passed
  		load_url( src, callback )	Loads the gif file specified in the src argument into a canvas element and then calls callback if one is passed
  
  		// play controls
  		play -				Start playing the gif
  		pause -				Stop playing the gif
  		move_to(i) -		Move to frame i of the gif
  		move_relative(i) -	Move i frames ahead (or behind if i < 0)
  
  		// getters
  		get_canvas			The canvas element that the gif is playing in. Handy for assigning event handlers to.
  		get_playing			Whether or not the gif is currently playing
  		get_loading			Whether or not the gif has finished loading/parsing
  		get_auto_play		Whether or not the gif is set to play automatically
  		get_length			The number of frames in the gif
  		get_current_frame	The index of the currently displayed frame of the gif
  
  		For additional customization (viewport inside iframe) these params may be passed:
  		c_w, c_h - width and height of canvas
  		vp_t, vp_l, vp_ w, vp_h - top, left, width and height of the viewport
  
  		A bonus: few articles to understand what is going on
  			http://enthusiasms.org/post/16976438906
  			http://www.matthewflickinger.com/lab/whatsinagif/bits_and_bytes.asp
  			http://humpy77.deviantart.com/journal/Frame-Delay-Times-for-Animated-GIFs-214150546
  
  */
  
  // Generic functions
  var bitsToNum = function (ba) {
  	return ba.reduce(function (s, n) {
  		return s * 2 + n;
  	}, 0);
  };
  
  var byteToBitArr = function (bite) {
  	var a = [];
  	for (var i = 7; i >= 0; i--) {
  		a.push( !! (bite & (1 << i)));
  	}
  	return a;
  };
  
  // Stream
  /**
   * @constructor
   */
  // Make compiler happy.
  var Stream = function (data) {
  	this.data = data;
  	this.len = this.data.length;
  	this.pos = 0;
  
  	this.readByte = function () {
  		if (this.pos >= this.data.length) {
  			throw new Error('Attempted to read past end of stream.');
  		}
  		if (data instanceof Uint8Array)
  			return data[this.pos++];
  		else
  			return data.charCodeAt(this.pos++) & 0xFF;
  	};
  
  	this.readBytes = function (n) {
  		var bytes = [];
  		for (var i = 0; i < n; i++) {
  			bytes.push(this.readByte());
  		}
  		return bytes;
  	};
  
  	this.read = function (n) {
  		var s = '';
  		for (var i = 0; i < n; i++) {
  			s += String.fromCharCode(this.readByte());
  		}
  		return s;
  	};
  
  	this.readUnsigned = function () { // Little-endian.
  		var a = this.readBytes(2);
  		return (a[1] << 8) + a[0];
  	};
  };
  
  var lzwDecode = function (minCodeSize, data) {
  	// TODO: Now that the GIF parser is a bit different, maybe this should get an array of bytes instead of a String?
  	var pos = 0; // Maybe this streaming thing should be merged with the Stream?
  	var readCode = function (size) {
  		var code = 0;
  		for (var i = 0; i < size; i++) {
  			if (data.charCodeAt(pos >> 3) & (1 << (pos & 7))) {
  				code |= 1 << i;
  			}
  			pos++;
  		}
  		return code;
  	};
  
  	var output = [];
  
  	var clearCode = 1 << minCodeSize;
  	var eoiCode = clearCode + 1;
  
  	var codeSize = minCodeSize + 1;
  
  	var dict = [];
  
  	var clear = function () {
  		dict = [];
  		codeSize = minCodeSize + 1;
  		for (var i = 0; i < clearCode; i++) {
  			dict[i] = [i];
  		}
  		dict[clearCode] = [];
  		dict[eoiCode] = null;
  
  	};
  
  	var code;
  	var last;
  
  	while (true) {
  		last = code;
  		code = readCode(codeSize);
  
  		if (code === clearCode) {
  			clear();
  			continue;
  		}
  		if (code === eoiCode) break;
  
  		if (code < dict.length) {
  			if (last !== clearCode) {
  				dict.push(dict[last].concat(dict[code][0]));
  			}
  		}
  		else {
  			if (code !== dict.length) throw new Error('Invalid LZW code.');
  			dict.push(dict[last].concat(dict[last][0]));
  		}
  		output.push.apply(output, dict[code]);
  
  		if (dict.length === (1 << codeSize) && codeSize < 12) {
  			// If we're at the last code and codeSize is 12, the next code will be a clearCode, and it'll be 12 bits long.
  			codeSize++;
  		}
  	}
  
  	// I don't know if this is technically an error, but some GIFs do it.
  	//if (Math.ceil(pos / 8) !== data.length) throw new Error('Extraneous LZW bytes.');
  	return output;
  };
  
  
  // The actual parsing; returns an object with properties.
  var parseGIF = function (st, handler) {
  	handler || (handler = {});
  
  	// LZW (GIF-specific)
  	var parseCT = function (entries) { // Each entry is 3 bytes, for RGB.
  		var ct = [];
  		for (var i = 0; i < entries; i++) {
  			ct.push(st.readBytes(3));
  		}
  		return ct;
  	};
  
  	var readSubBlocks = function () {
  		var size, data;
  		data = '';
  		do {
  			size = st.readByte();
  			data += st.read(size);
  		} while (size !== 0);
  		return data;
  	};
  
  	var parseHeader = function () {
  		var hdr = {};
  		hdr.sig = st.read(3);
  		hdr.ver = st.read(3);
  		if (hdr.sig !== 'GIF') throw new Error('Not a GIF file.'); // XXX: This should probably be handled more nicely.
  		hdr.width = st.readUnsigned();
  		hdr.height = st.readUnsigned();
  
  		var bits = byteToBitArr(st.readByte());
  		hdr.gctFlag = bits.shift();
  		hdr.colorRes = bitsToNum(bits.splice(0, 3));
  		hdr.sorted = bits.shift();
  		hdr.gctSize = bitsToNum(bits.splice(0, 3));
  
  		hdr.bgColor = st.readByte();
  		hdr.pixelAspectRatio = st.readByte(); // if not 0, aspectRatio = (pixelAspectRatio + 15) / 64
  		if (hdr.gctFlag) {
  			hdr.gct = parseCT(1 << (hdr.gctSize + 1));
  		}
  		handler.hdr && handler.hdr(hdr);
  	};
  
  	var parseExt = function (block) {
  		var parseGCExt = function (block) {
  			var blockSize = st.readByte(); // Always 4
  			var bits = byteToBitArr(st.readByte());
  			block.reserved = bits.splice(0, 3); // Reserved; should be 000.
  			block.disposalMethod = bitsToNum(bits.splice(0, 3));
  			block.userInput = bits.shift();
  			block.transparencyGiven = bits.shift();
  
  			block.delayTime = st.readUnsigned();
  
  			block.transparencyIndex = st.readByte();
  
  			block.terminator = st.readByte();
  
  			handler.gce && handler.gce(block);
  		};
  
  		var parseComExt = function (block) {
  			block.comment = readSubBlocks();
  			handler.com && handler.com(block);
  		};
  
  		var parsePTExt = function (block) {
  			// No one *ever* uses this. If you use it, deal with parsing it yourself.
  			var blockSize = st.readByte(); // Always 12
  			block.ptHeader = st.readBytes(12);
  			block.ptData = readSubBlocks();
  			handler.pte && handler.pte(block);
  		};
  
  		var parseAppExt = function (block) {
  			var parseNetscapeExt = function (block) {
  				var blockSize = st.readByte(); // Always 3
  				block.unknown = st.readByte(); // ??? Always 1? What is this?
  				block.iterations = st.readUnsigned();
  				block.terminator = st.readByte();
  				handler.app && handler.app.NETSCAPE && handler.app.NETSCAPE(block);
  			};
  
  			var parseUnknownAppExt = function (block) {
  				block.appData = readSubBlocks();
  				// FIXME: This won't work if a handler wants to match on any identifier.
  				handler.app && handler.app[block.identifier] && handler.app[block.identifier](block);
  			};
  
  			var blockSize = st.readByte(); // Always 11
  			block.identifier = st.read(8);
  			block.authCode = st.read(3);
  			switch (block.identifier) {
  			case 'NETSCAPE':
  				parseNetscapeExt(block);
  				break;
  			default:
  				parseUnknownAppExt(block);
  				break;
  			}
  		};
  
  		var parseUnknownExt = function (block) {
  			block.data = readSubBlocks();
  			handler.unknown && handler.unknown(block);
  		};
  
  		block.label = st.readByte();
  		switch (block.label) {
  		case 0xF9:
  			block.extType = 'gce';
  			parseGCExt(block);
  			break;
  		case 0xFE:
  			block.extType = 'com';
  			parseComExt(block);
  			break;
  		case 0x01:
  			block.extType = 'pte';
  			parsePTExt(block);
  			break;
  		case 0xFF:
  			block.extType = 'app';
  			parseAppExt(block);
  			break;
  		default:
  			block.extType = 'unknown';
  			parseUnknownExt(block);
  			break;
  		}
  	};
  
  	var parseImg = function (img) {
  		var deinterlace = function (pixels, width) {
  			// Of course this defeats the purpose of interlacing. And it's *probably*
  			// the least efficient way it's ever been implemented. But nevertheless...
  			var newPixels = new Array(pixels.length);
  			var rows = pixels.length / width;
  			var cpRow = function (toRow, fromRow) {
  				var fromPixels = pixels.slice(fromRow * width, (fromRow + 1) * width);
  				newPixels.splice.apply(newPixels, [toRow * width, width].concat(fromPixels));
  			};
  
  			// See appendix E.
  			var offsets = [0, 4, 2, 1];
  			var steps = [8, 8, 4, 2];
  
  			var fromRow = 0;
  			for (var pass = 0; pass < 4; pass++) {
  				for (var toRow = offsets[pass]; toRow < rows; toRow += steps[pass]) {
  					cpRow(toRow, fromRow)
  					fromRow++;
  				}
  			}
  
  			return newPixels;
  		};
  
  		img.leftPos = st.readUnsigned();
  		img.topPos = st.readUnsigned();
  		img.width = st.readUnsigned();
  		img.height = st.readUnsigned();
  
  		var bits = byteToBitArr(st.readByte());
  		img.lctFlag = bits.shift();
  		img.interlaced = bits.shift();
  		img.sorted = bits.shift();
  		img.reserved = bits.splice(0, 2);
  		img.lctSize = bitsToNum(bits.splice(0, 3));
  
  		if (img.lctFlag) {
  			img.lct = parseCT(1 << (img.lctSize + 1));
  		}
  
  		img.lzwMinCodeSize = st.readByte();
  
  		var lzwData = readSubBlocks();
  
  		img.pixels = lzwDecode(img.lzwMinCodeSize, lzwData);
  
  		if (img.interlaced) { // Move
  			img.pixels = deinterlace(img.pixels, img.width);
  		}
  
  		handler.img && handler.img(img);
  	};
  
  	var parseBlock = function () {
  		var block = {};
  		block.sentinel = st.readByte();
  
  		switch (String.fromCharCode(block.sentinel)) { // For ease of matching
  		case '!':
  			block.type = 'ext';
  			parseExt(block);
  			break;
  		case ',':
  			block.type = 'img';
  			parseImg(block);
  			break;
  		case ';':
  			block.type = 'eof';
  			handler.eof && handler.eof(block);
  			break;
  		default:
  			throw new Error('Unknown block: 0x' + block.sentinel.toString(16)); // TODO: Pad this with a 0.
  		}
  
  		if (block.type !== 'eof') setTimeout(parseBlock, 0);
  	};
  
  	var parse = function () {
  		parseHeader();
  		setTimeout(parseBlock, 0);
  	};
  
  	parse();
  };
  
  var SuperGif = function ( opts ) {
  	var options = {
  		//viewport position
  		vp_l: 0,
  		vp_t: 0,
  		vp_w: null,
  		vp_h: null,
  		//canvas sizes
  		c_w: null,
  		c_h: null
  	};
  	for (var i in opts ) { options[i] = opts[i] }
  	if (options.vp_w && options.vp_h) options.is_vp = true;
  
  	var stream;
  	var hdr;
  
  	var loadError = null;
  	var loading = false;
  
  	var transparency = null;
  	var delay = null;
  	var disposalMethod = null;
  	var disposalRestoreFromIdx = 0;
  	var lastDisposalMethod = null;
  	var frame = null;
  	var lastImg = null;
  
  	var playing = true;
  	var forward = true;
  
  	var ctx_scaled = false;
  
  	var frames = [];
  
  	var gif = options.gif;
  	if (typeof options.auto_play == 'undefined')
  		options.auto_play = (!gif.getAttribute('rel:auto_play') || gif.getAttribute('rel:auto_play') == '1');
  
  	var clear = function () {
  		transparency = null;
  		delay = null;
  		lastDisposalMethod = disposalMethod;
  		disposalMethod = null;
  		frame = null;
  	};
  
  	// XXX: There's probably a better way to handle catching exceptions when
  	// callbacks are involved.
  	var doParse = function () {
  		try {
  			parseGIF(stream, handler);
  		}
  		catch (err) {
  			doLoadError('parse');
  		}
  	};
  
  	var doText = function (text) {
  		toolbar.innerHTML = text; // innerText? Escaping? Whatever.
  		toolbar.style.visibility = 'visible';
  	};
  
  	var setSizes = function(w, h) {
  		canvas.width = w * get_canvas_scale();
  		canvas.height = h * get_canvas_scale();
  		toolbar.style.minWidth = ( w * get_canvas_scale() ) + 'px';
  
  		tmpCanvas.width = w;
  		tmpCanvas.height = h;
  		tmpCanvas.style.width = w + 'px';
  		tmpCanvas.style.height = h + 'px';
  		tmpCanvas.getContext('2d').setTransform(1, 0, 0, 1, 0, 0);
  	}
  
  	var doShowProgress = function (pos, length, draw) {
  		if (draw) {
  			var height = 25;
  			var left, mid, top, width;
  			if (options.is_vp) {
  				if (!ctx_scaled) {
  					top = (options.vp_t + options.vp_h - height);
  					height = height;
  					left = options.vp_l;
  					mid = left + (pos / length) * options.vp_w;
  					width = canvas.width;
  				} else {
  					top = (options.vp_t + options.vp_h - height) / get_canvas_scale();
  					height = height / get_canvas_scale();
  					left = (options.vp_l / get_canvas_scale() );
  					mid = left + (pos / length) * (options.vp_w / get_canvas_scale());
  					width = canvas.width / get_canvas_scale();
  				}
  				//some debugging, draw rect around viewport
  				if (false) {
  					if (!ctx_scaled) {
  						var l = options.vp_l, t = options.vp_t;
  						var w = options.vp_w, h = options.vp_h;
  					} else {
  						var l = options.vp_l/get_canvas_scale(), t = options.vp_t/get_canvas_scale();
  						var w = options.vp_w/get_canvas_scale(), h = options.vp_h/get_canvas_scale();
  					}
  					ctx.rect(l,t,w,h);
  					ctx.stroke();
  				}
  			}
  			else {
  				top = (canvas.height - height) / (ctx_scaled ? get_canvas_scale() : 1);
  				mid = ((pos / length) * canvas.width) / (ctx_scaled ? get_canvas_scale() : 1);
  				width = canvas.width / (ctx_scaled ? get_canvas_scale() : 1 );
  				height /= ctx_scaled ? get_canvas_scale() : 1;
  			}
  			// XXX Figure out alpha fillRect.
  			//ctx.fillStyle = 'salmon';
  			ctx.fillStyle = 'rgba(255,255,255,0.4)';
  			ctx.fillRect(mid, top, width - mid, height);
  
  			//ctx.fillStyle = 'teal';
  			ctx.fillStyle = 'rgba(255,0,22,.8)';
  			ctx.fillRect(0, top, mid, height);
  		}
  	};
  
  	var doLoadError = function (originOfError) {
  		var drawError = function () {
  			ctx.fillStyle = 'black';
  			ctx.fillRect(0, 0, options.c_w ? options.c_w : hdr.width, options.c_h ? options.c_h : hdr.height);
  			ctx.strokeStyle = 'red';
  			ctx.lineWidth = 3;
  			ctx.moveTo(0, 0);
  			ctx.lineTo(options.c_w ? options.c_w : hdr.width, options.c_h ? options.c_h : hdr.height);
  			ctx.moveTo(0, options.c_h ? options.c_h : hdr.height);
  			ctx.lineTo(options.c_w ? options.c_w : hdr.width, 0);
  			ctx.stroke();
  		};
  
  		loadError = originOfError;
  		hdr = {
  			width: gif.width,
  			height: gif.height
  		}; // Fake header.
  		frames = [];
  		drawError();
  	};
  
  	var doHdr = function (_hdr) {
  		hdr = _hdr;
  		setSizes(hdr.width, hdr.height)
  	};
  
  	var doGCE = function (gce) {
  		pushFrame();
  		clear();
  		transparency = gce.transparencyGiven ? gce.transparencyIndex : null;
  		delay = gce.delayTime;
  		disposalMethod = gce.disposalMethod;
  		// We don't have much to do with the rest of GCE.
  	};
  
  	var pushFrame = function () {
  		if (!frame) return;
  		frames.push({
  			data: frame.getImageData(0, 0, hdr.width, hdr.height),
  			delay: delay
  		});
  	};
  
  	var doImg = function (img) {
  		if (!frame) frame = tmpCanvas.getContext('2d');
  
  		var currIdx = frames.length;
  
  		//ct = color table, gct = global color table
  		var ct = img.lctFlag ? img.lct : hdr.gct; // TODO: What if neither exists?
  
  		/*
  		Disposal method indicates the way in which the graphic is to
  		be treated after being displayed.
  
  		Values :    0 - No disposal specified. The decoder is
  						not required to take any action.
  					1 - Do not dispose. The graphic is to be left
  						in place.
  					2 - Restore to background color. The area used by the
  						graphic must be restored to the background color.
  					3 - Restore to previous. The decoder is required to
  						restore the area overwritten by the graphic with
  						what was there prior to rendering the graphic.
  
  						Importantly, "previous" means the frame state
  						after the last disposal of method 0, 1, or 2.
  		*/
  		if (currIdx > 0) {
  			if (lastDisposalMethod === 3) {
  				// Restore to previous
  				frame.putImageData(frames[disposalRestoreFromIdx].data, 0, 0);
  			} else {
  				disposalRestoreFromIdx = currIdx - 1;
  			}
  
  			if (lastDisposalMethod === 2) {
  				// Restore to background color
  				// Browser implementations historically restore to transparent; we do the same.
  				// http://www.wizards-toolkit.org/discourse-server/viewtopic.php?f=1&t=21172#p86079
  				frame.clearRect(lastImg.leftPos, lastImg.topPos, lastImg.width, lastImg.height);
  			}
  		}
  		// else, Undefined/Do not dispose.
  		// frame contains final pixel data from the last frame; do nothing
  
  		//Get existing pixels for img region after applying disposal method
  		var imgData = frame.getImageData(img.leftPos, img.topPos, img.width, img.height);
  
  		//apply color table colors
  		var cdd = imgData.data;
  		img.pixels.forEach(function (pixel, i) {
  			// imgData.data === [R,G,B,A,R,G,B,A,...]
  			if (pixel !== transparency) {
  				cdd[i * 4 + 0] = ct[pixel][0];
  				cdd[i * 4 + 1] = ct[pixel][1];
  				cdd[i * 4 + 2] = ct[pixel][2];
  				cdd[i * 4 + 3] = 255; // Opaque.
  			}
  		});
  		imgData.data = cdd;
  
  		frame.putImageData(imgData, img.leftPos, img.topPos);
  
  		if (!ctx_scaled) {
  			ctx.scale(get_canvas_scale(),get_canvas_scale());
  			ctx_scaled = true;
  		}
  
  		// We could use the on-page canvas directly, except that we draw a progress
  		// bar for each image chunk (not just the final image).
  		ctx.drawImage(tmpCanvas, 0, 0);
  
  		lastImg = img;
  	};
  
  	var player = (function () {
  		var i = -1;
  		var curFrame;
  		var delayInfo;
  
  		var showingInfo = false;
  		var pinned = false;
  
  		var stepFrame = function (delta) { // XXX: Name is confusing.
  			i = (i + delta + frames.length) % frames.length;
  			curFrame = i + 1;
  			delayInfo = frames[i].delay;
  			putFrame();
  		};
  
  		var step = (function () {
  			var stepping = false;
  
  			var doStep = function () {
  				stepping = playing;
  				if (!stepping) return;
  
  				stepFrame(forward ? 1 : -1);
  				var delay = frames[i].delay * 10;
  				if (!delay) delay = 100; // FIXME: Should this even default at all? What should it be?
  				setTimeout(doStep, delay);
  			};
  
  			return function () {
  				if (!stepping) setTimeout(doStep, 0);
  			};
  		}());
  
  		var putFrame = function () {
  			curFrame = i;
  
  			tmpCanvas.getContext("2d").putImageData(frames[i].data, 0, 0);
  			ctx.globalCompositeOperation = "copy";
  			ctx.drawImage(tmpCanvas, 0, 0);
  
  		};
  
  		var play = function () {
  			playing = true;
  			step();
  		};
  
  		var pause = function () {
  			playing = false;
  		};
  
  
  		return {
  			init: function () {
  				if (loadError) return;
  
  				if ( ! (options.c_w && options.c_h) ) {
  					ctx.scale(get_canvas_scale(),get_canvas_scale());
  				}
  
  				if (options.auto_play) {
  					step();
  				}
  				else {
  					i = 0;
  					putFrame();
  				}
  			},
  			current_frame: curFrame,
  			step: step,
  			play: play,
  			pause: pause,
  			playing: playing,
  			move_relative: stepFrame,
  			current_frame: function() { return i; },
  			length: function() { return frames.length },
  			move_to: function ( frame_idx ) {
  				i = frame_idx;
  				putFrame();
  			}
  		}
  	}());
  
  	var doDecodeProgress = function (draw) {
  		doShowProgress(stream.pos, stream.data.length, draw);
  	};
  
  	var doNothing = function () {};
  	/**
  	 * @param{boolean=} draw Whether to draw progress bar or not; this is not idempotent because of translucency.
  	 *                       Note that this means that the text will be unsynchronized with the progress bar on non-frames;
  	 *                       but those are typically so small (GCE etc.) that it doesn't really matter. TODO: Do this properly.
  	 */
  	var withProgress = function (fn, draw) {
  		return function (block) {
  			fn(block);
  			doDecodeProgress(draw);
  		};
  	};
  
  
  	var handler = {
  		hdr: withProgress(doHdr),
  		gce: withProgress(doGCE),
  		com: withProgress(doNothing),
  		// I guess that's all for now.
  		app: {
  			// TODO: Is there much point in actually supporting iterations?
  			NETSCAPE: withProgress(doNothing)
  		},
  		img: withProgress(doImg, true),
  		eof: function (block) {
  			//toolbar.style.display = '';
  			pushFrame();
  			doDecodeProgress(false);
  			if ( ! (options.c_w && options.c_h) ) {
  				canvas.width = hdr.width * get_canvas_scale();
  				canvas.height = hdr.height * get_canvas_scale();
  			}
  			player.init();
  			loading = false;
  			if (load_callback) {
  				load_callback(gif);
  			}
  
  		}
  	};
  
  	var init = function () {
  		var parent = gif.parentNode;
  
  		var div = document.createElement('div');
  		canvas = document.createElement('canvas');
  		ctx = canvas.getContext('2d');
  		toolbar = document.createElement('div');
  
  		tmpCanvas = document.createElement('canvas');
  
  		div.width = canvas.width = gif.width;
  		div.height = canvas.height = gif.height;
  		toolbar.style.minWidth = gif.width + 'px';
  
  		div.className = 'jsgif';
  		toolbar.className = 'jsgif_toolbar';
  		div.appendChild(canvas);
  		div.appendChild(toolbar);
  
  		parent.insertBefore(div, gif);
  		parent.removeChild(gif);
  
  		if (options.c_w && options.c_h) setSizes(options.c_w, options.c_h);
  		initialized=true;
  	};
  
  	var get_canvas_scale = function() {
  		var scale;
  		if (options.max_width && hdr && hdr.width > options.max_width) {
  			scale = options.max_width / hdr.width;
  		}
  		else {
  			scale = 1;
  		}
  		return scale;
  	}
  
  	var canvas, ctx, toolbar, tmpCanvas;
  	var initialized = false;
  	var load_callback = false;
  
  	var load_setup = function(callback) {
  		if (loading) return false;
  		if (callback) load_callback = callback;
  		else load_callback = false;
  
  		loading = true;
  		frames = [];
  		clear();
  		disposalRestoreFromIdx = 0;
  		lastDisposalMethod = null;
  		frame = null;
  		lastImg = null;
  
  		return true;
  	}
  
  	return {
  		// play controls
  		play: player.play,
  		pause: player.pause,
  		move_relative: player.move_relative,
  		move_to: player.move_to,
  
  		// getters for instance vars
  		get_playing      : function() { return player.playing },
  		get_canvas       : function() { return canvas },
  		get_canvas_scale : function() { return get_canvas_scale() },
  		get_loading      : function() { return loading },
  		get_auto_play    : function() { return options.auto_play },
  		get_length       : function() { return player.length() },
  		get_current_frame: function() { return player.current_frame() },
  		load_url: function(src,callback){
  			if (!load_setup(callback)) return;
  
  			var h = new XMLHttpRequest();
  			h.overrideMimeType('text/plain; charset=x-user-defined');
  			h.onloadstart = function() {
  				// Wait until connection is opened to replace the gif element with a canvas to avoid a blank img
  				if (!initialized) init();
  			};
  			h.onload = function(e) {
  				stream = new Stream(h.responseText);
  				setTimeout(doParse, 0);
  			};
  			h.onprogress = function (e) {
  				if (e.lengthComputable) doShowProgress(e.loaded, e.total, true);
  			};
  			h.onerror = function() { doLoadError('xhr'); };
  			h.open('GET', src, true);
  			h.send();
  		},
  		load: function (callback) {
  			this.load_url(gif.getAttribute('rel:animated_src') || gif.src,callback);
  		},
  		load_raw: function(arr, callback) {
  			if (!load_setup(callback)) return;
  			if (!initialized) init();
  			stream = new Stream(arr);
  			setTimeout(doParse, 0);
  		}
  	};
  
  };
  