text: //---------------------------------------------------------------------
  //
  // QR Code Generator for JavaScript
  //
  // Copyright (c) 2009 Kazuhiko Arase
  //
  // URL: http://www.d-project.com/
  //
  // Licensed under the MIT license:
  //	http://www.opensource.org/licenses/mit-license.php
  //
  // The word 'QR Code' is registered trademark of
  // DENSO WAVE INCORPORATED
  //	http://www.denso-wave.com/qrcode/faqpatent-e.html
  //
  //---------------------------------------------------------------------
  
  var qrcode = function() {
  
  	//---------------------------------------------------------------------
  	// qrcode
  	//---------------------------------------------------------------------
  
  	/**
  	 * qrcode
  	 * @param typeNumber 1 to 10
  	 * @param errorCorrectLevel 'L','M','Q','H'
  	 */
  	var qrcode = function(typeNumber, errorCorrectLevel) {
  
  		var PAD0 = 0xEC;
  		var PAD1 = 0x11;
  
  		var _typeNumber = typeNumber;
  		var _errorCorrectLevel = QRErrorCorrectLevel[errorCorrectLevel];
  		var _modules = null;
  		var _moduleCount = 0;
  		var _dataCache = null;
  		var _dataList = [];
  
  		var _this = {};
  
  		var makeImpl = function(test, maskPattern) {
  
  			_moduleCount = _typeNumber * 4 + 17;
  			_modules = function(moduleCount) {
  				var modules = [];
  				for (var row = 0; row < moduleCount; row++) {
  					modules[row] = [];
  					for (var col = 0; col < moduleCount; col++) {
  						modules[row][col] = null;
  					}
  				}
  				return modules;
  			}(_moduleCount);
  
  			setupPositionProbePattern(0, 0);
  			setupPositionProbePattern(_moduleCount - 7, 0);
  			setupPositionProbePattern(0, _moduleCount - 7);
  			setupPositionAdjustPattern();
  			setupTimingPattern();
  			setupTypeInfo(test, maskPattern);
  
  			if (_typeNumber >= 7) {
  				setupTypeNumber(test);
  			}
  
  			if (_dataCache == null) {
  				_dataCache = createData(_typeNumber, _errorCorrectLevel, _dataList);
  			}
  
  			mapData(_dataCache, maskPattern);
  		};
  
  		var setupPositionProbePattern = function(row, col) {
  
  			for (var r = -1; r <= 7; r++) {
  
  				if (row + r <= -1 || _moduleCount <= row + r) continue;
  
  				for (var c = -1; c <= 7; c++) {
  
  					if (col + c <= -1 || _moduleCount <= col + c) continue;
  
  					if ( (0 <= r && r <= 6 && (c == 0 || c == 6) )
  							|| (0 <= c && c <= 6 && (r == 0 || r == 6) )
  							|| (2 <= r && r <= 4 && 2 <= c && c <= 4) ) {
  						_modules[row + r][col + c] = true;
  					} else {
  						_modules[row + r][col + c] = false;
  					}
  				}
  			}
  		};
  
  		var getBestMaskPattern = function() {
  
  			var minLostPoint = 0;
  			var pattern = 0;
  
  			for (var i = 0; i < 8; i++) {
  
  				makeImpl(true, i);
  
  				var lostPoint = QRUtil.getLostPoint(_this);
  
  				if (i == 0 || minLostPoint > lostPoint) {
  					minLostPoint = lostPoint;
  					pattern = i;
  				}
  			}
  
  			return pattern;
  		};
  
  		var setupTimingPattern = function() {
  
  			for (var r = 8; r < _moduleCount - 8; r++) {
  				if (_modules[r][6] != null) {
  					continue;
  				}
  				_modules[r][6] = (r % 2 == 0);
  			}
  
  			for (var c = 8; c < _moduleCount - 8; c++) {
  				if (_modules[6][c] != null) {
  					continue;
  				}
  				_modules[6][c] = (c % 2 == 0);
  			}
  		};
  
  		var setupPositionAdjustPattern = function() {
  
  			var pos = QRUtil.getPatternPosition(_typeNumber);
  
  			for (var i = 0; i < pos.length; i++) {
  
  				for (var j = 0; j < pos.length; j++) {
  
  					var row = pos[i];
  					var col = pos[j];
  
  					if (_modules[row][col] != null) {
  						continue;
  					}
  
  					for (var r = -2; r <= 2; r++) {
  
  						for (var c = -2; c <= 2; c++) {
  
  							if (r == -2 || r == 2 || c == -2 || c == 2
  									|| (r == 0 && c == 0) ) {
  								_modules[row + r][col + c] = true;
  							} else {
  								_modules[row + r][col + c] = false;
  							}
  						}
  					}
  				}
  			}
  		};
  
  		var setupTypeNumber = function(test) {
  
  			var bits = QRUtil.getBCHTypeNumber(_typeNumber);
  
  			for (var i = 0; i < 18; i++) {
  				var mod = (!test && ( (bits >> i) & 1) == 1);
  				_modules[Math.floor(i / 3)][i % 3 + _moduleCount - 8 - 3] = mod;
  			}
  
  			for (var i = 0; i < 18; i++) {
  				var mod = (!test && ( (bits >> i) & 1) == 1);
  				_modules[i % 3 + _moduleCount - 8 - 3][Math.floor(i / 3)] = mod;
  			}
  		};
  
  		var setupTypeInfo = function(test, maskPattern) {
  
  			var data = (_errorCorrectLevel << 3) | maskPattern;
  			var bits = QRUtil.getBCHTypeInfo(data);
  
  			// vertical
  			for (var i = 0; i < 15; i++) {
  
  				var mod = (!test && ( (bits >> i) & 1) == 1);
  
  				if (i < 6) {
  					_modules[i][8] = mod;
  				} else if (i < 8) {
  					_modules[i + 1][8] = mod;
  				} else {
  					_modules[_moduleCount - 15 + i][8] = mod;
  				}
  			}
  
  			// horizontal
  			for (var i = 0; i < 15; i++) {
  
  				var mod = (!test && ( (bits >> i) & 1) == 1);
  
  				if (i < 8) {
  					_modules[8][_moduleCount - i - 1] = mod;
  				} else if (i < 9) {
  					_modules[8][15 - i - 1 + 1] = mod;
  				} else {
  					_modules[8][15 - i - 1] = mod;
  				}
  			}
  
  			// fixed module
  			_modules[_moduleCount - 8][8] = (!test);
  		};
  
  		var mapData = function(data, maskPattern) {
  
  			var inc = -1;
  			var row = _moduleCount - 1;
  			var bitIndex = 7;
  			var byteIndex = 0;
  			var maskFunc = QRUtil.getMaskFunction(maskPattern);
  
  			for (var col = _moduleCount - 1; col > 0; col -= 2) {
  
  				if (col == 6) col -= 1;
  
  				while (true) {
  
  					for (var c = 0; c < 2; c++) {
  
  						if (_modules[row][col - c] == null) {
  
  							var dark = false;
  
  							if (byteIndex < data.length) {
  								dark = ( ( (data[byteIndex] >>> bitIndex) & 1) == 1);
  							}
  
  							var mask = maskFunc(row, col - c);
  
  							if (mask) {
  								dark = !dark;
  							}
  
  							_modules[row][col - c] = dark;
  							bitIndex -= 1;
  
  							if (bitIndex == -1) {
  								byteIndex++;
  								bitIndex = 7;
  							}
  						}
  					}
  
  					row += inc;
  
  					if (row < 0 || _moduleCount <= row) {
  						row -= inc;
  						inc = -inc;
  						break;
  					}
  				}
  			}
  		};
  
  		var createBytes = function(buffer, rsBlocks) {
  
  			var offset = 0;
  
  			var maxDcCount = 0;
  			var maxEcCount = 0;
  
  			var dcdata = [];
  			var ecdata = [];
  
  			for (var r = 0; r < rsBlocks.length; r++) {
  
  				var dcCount = rsBlocks[r].dataCount;
  				var ecCount = rsBlocks[r].totalCount - dcCount;
  
  				maxDcCount = Math.max(maxDcCount, dcCount);
  				maxEcCount = Math.max(maxEcCount, ecCount);
  
  				dcdata[r] = [];
  
  				for (var i = 0; i < dcCount; i++) {
  					dcdata[r][i] = 0xff & buffer.getBuffer()[i + offset];
  				}
  				offset += dcCount;
  
  				var rsPoly = QRUtil.getErrorCorrectPolynomial(ecCount),
  					length = rsPoly.getLength() - 1,
  					rawPoly = qrPolynomial(dcdata[r], length),
  					modPoly = rawPoly.mod(rsPoly);
  
  				ecdata[r] = [];
  				for (var i = 0; i < length; i++) {
  					var modIndex = i + modPoly.getLength() - length;
  					ecdata[r][i] = (modIndex >= 0)? modPoly.get(modIndex) : 0;
  				}
  			}
  
  			var totalCodeCount = 0;
  			for (var i = 0; i < rsBlocks.length; i++) {
  				totalCodeCount += rsBlocks[i].totalCount;
  			}
  
  			var data = [];
  			var index = 0;
  
  			for (var i = 0; i < maxDcCount; i++) {
  				for (var r = 0; r < rsBlocks.length; r++) {
  					if (i < dcdata[r].length) {
  						data[index] = dcdata[r][i];
  						index++;
  					}
  				}
  			}
  
  			for (var i = 0; i < maxEcCount; i++) {
  				for (var r = 0; r < rsBlocks.length; r++) {
  					if (i < ecdata[r].length) {
  						data[index] = ecdata[r][i];
  						index++;
  					}
  				}
  			}
  
  			return data;
  		};
  
  		var createData = function(typeNumber, errorCorrectLevel, dataList) {
  
  			var rsBlocks = QRRSBlock.getRSBlocks(typeNumber, errorCorrectLevel);
  
  			var buffer = qrBitBuffer();
  
  			for (var i = 0; i < dataList.length; i++) {
  				var data = dataList[i];
  				buffer.put(data.getMode(), 4);
  				buffer.put(data.getLength(), QRUtil.getLengthInBits(data.getMode(), typeNumber) );
  				data.write(buffer);
  			}
  
  			// calc num max data.
  			var totalDataCount = 0;
  			for (var i = 0; i < rsBlocks.length; i++) {
  				totalDataCount += rsBlocks[i].dataCount;
  			}
  
  			if (buffer.getLengthInBits() > totalDataCount * 8) {
  				throw new Error('code length overflow. ('
  					+ buffer.getLengthInBits()
  					+ '>'
  					+ totalDataCount * 8
  					+ ')');
  			}
  
  			// end code
  			if (buffer.getLengthInBits() + 4 <= totalDataCount * 8) {
  				buffer.put(0, 4);
  			}
  
  			// padding
  			while (buffer.getLengthInBits() % 8 != 0) {
  				buffer.putBit(false);
  			}
  
  			// padding
  			while (true) {
  
  				if (buffer.getLengthInBits() >= totalDataCount * 8) {
  					break;
  				}
  				buffer.put(PAD0, 8);
  
  				if (buffer.getLengthInBits() >= totalDataCount * 8) {
  					break;
  				}
  				buffer.put(PAD1, 8);
  			}
  
  			return createBytes(buffer, rsBlocks);
  		};
  
  		_this.addData = function(data) {
  			var newData = qr8BitByte(data);
  			_dataList.push(newData);
  			_dataCache = null;
  		};
  
  		_this.isDark = function(row, col) {
  			if (row < 0 || _moduleCount <= row || col < 0 || _moduleCount <= col) {
  				throw new Error(row + ',' + col);
  			}
  			return _modules[row][col];
  		};
  
  		_this.getModuleCount = function() {
  			return _moduleCount;
  		};
  
  		_this.make = function() {
  			makeImpl(false, getBestMaskPattern() );
  		};
  
  		_this.createTableTag = function(cellSize, margin) {
  
  			cellSize = cellSize || 2;
  			margin = (typeof margin == 'undefined')? cellSize * 4 : margin;
  
  			var qrHtml = '';
  
  			qrHtml += '<table style="';
  			qrHtml += ' border-width: 0px; border-style: none;';
  			qrHtml += ' border-collapse: collapse;';
  			qrHtml += ' padding: 0px; margin: ' + margin + 'px;';
  			qrHtml += '">';
  			qrHtml += '<tbody>';
  
  			for (var r = 0; r < _this.getModuleCount(); r++) {
  
  				qrHtml += '<tr>';
  
  				for (var c = 0; c < _this.getModuleCount(); c++) {
  					qrHtml += '<td style="';
  					qrHtml += ' border-width: 0px; border-style: none;';
  					qrHtml += ' border-collapse: collapse;';
  					qrHtml += ' padding: 0px; margin: 0px;';
  					qrHtml += ' width: ' + cellSize + 'px;';
  					qrHtml += ' height: ' + cellSize + 'px;';
  					qrHtml += ' background-color: ';
  					qrHtml += _this.isDark(r, c)? '#000000' : '#ffffff';
  					qrHtml += ';';
  					qrHtml += '"/>';
  				}
  
  				qrHtml += '</tr>';
  			}
  
  			qrHtml += '</tbody>';
  			qrHtml += '</table>';
  
  			return qrHtml;
  		};
  
  		_this.createImgTag = function(cellSize, margin) {
  
  			cellSize = cellSize || 2;
  			margin = (typeof margin == 'undefined')? cellSize * 4 : margin;
  
  			var size = _this.getModuleCount() * cellSize + margin * 2;
  			var min = margin;
  			var max = size - margin;
  
  			return createImgTag(size, size, function(x, y) {
  				if (min <= x && x < max && min <= y && y < max) {
  					var c = Math.floor( (x - min) / cellSize);
  					var r = Math.floor( (y - min) / cellSize);
  					return _this.isDark(r, c)? 0 : 1;
  				} else {
  					return 1;
  				}
  			} );
  		};
  
  		// Brackets plugins addon: export as SVG Path.
  		_this.createSVGPath = function (cellSize) {
  
  			cellSize = cellSize || 2;
  
  			var qrHtml = "",
  				length = _this.getModuleCount();
  
  			for (var r = 0; r < length; r++) {
  
  				for (var c = 0; c < length; c++) if (_this.isDark(r, c)) {
  					qrHtml += "M" + c * cellSize + "," + r * cellSize +
  							  "h" + cellSize + "v" + cellSize + "h-" + cellSize + "z";
  				}
  			}
  
  			return {
  				d: qrHtml,
  				size: length * cellSize,
  				toString: function () {
  					return this.d;
  				}
  			};
  		};
  
  		return _this;
  	};
  
  	//---------------------------------------------------------------------
  	// qrcode.stringToBytes
  	//---------------------------------------------------------------------
  
  	qrcode.stringToBytes = function(s) {
  		var bytes = [];
  		for (var i = 0; i < s.length; i++) {
  			var c = s.charCodeAt(i);
  			bytes.push(c & 0xff);
  		}
  		return bytes;
  	};
  
  	//---------------------------------------------------------------------
  	// qrcode.createStringToBytes
  	//---------------------------------------------------------------------
  
  	/**
  	 * @param unicodeData base64 string of byte array.
  	 * [16bit Unicode],[16bit Bytes], ...
  	 * @param numChars
  	 */
  	qrcode.createStringToBytes = function(unicodeData, numChars) {
  
  		// create conversion map.
  
  		var unicodeMap = function() {
  
  			var bin = base64DecodeInputStream(unicodeData);
  			var read = function() {
  				var b = bin.read();
  				if (b == -1) throw new Error();
  				return b;
  			};
  
  			var count = 0;
  			var unicodeMap = {};
  			while (true) {
  				var b0 = bin.read();
  				if (b0 == -1) break;
  				var b1 = read();
  				var b2 = read();
  				var b3 = read();
  				var k = String.fromCharCode( (b0 << 8) | b1);
  				var v = (b2 << 8) | b3;
  				unicodeMap[k] = v;
  				count++;
  			}
  			if (count != numChars) {
  				throw new Error(count + ' != ' + numChars);
  			}
  
  			return unicodeMap;
  		}();
  
  		var unknownChar = '?'.charCodeAt(0);
  
  		return function(s) {
  			var bytes = [];
  			for (var i = 0; i < s.length; i++) {
  				var c = s.charCodeAt(i);
  				if (c < 128) {
  					bytes.push(c);
  				} else {
  					var b = unicodeMap[s.charAt(i)];
  					if (typeof b == 'number') {
  						if ( (b & 0xff) == b) {
  							// 1byte
  							bytes.push(b);
  						} else {
  							// 2bytes
  							bytes.push(b >>> 8);
  							bytes.push(b & 0xff);
  						}
  					} else {
  						bytes.push(unknownChar);
  					}
  				}
  			}
  			return bytes;
  		};
  	};
  
  	//---------------------------------------------------------------------
  	// QRMode
  	//---------------------------------------------------------------------
  
  	var QRMode = {
  		MODE_NUMBER :		1 << 0,
  		MODE_ALPHA_NUM : 	1 << 1,
  		MODE_8BIT_BYTE : 	1 << 2,
  		MODE_KANJI :		1 << 3
  	};
  
  	//---------------------------------------------------------------------
  	// QRErrorCorrectLevel
  	//---------------------------------------------------------------------
  
  	var QRErrorCorrectLevel = {
  		L : 1,
  		M : 0,
  		Q : 3,
  		H : 2
  	};
  
  	//---------------------------------------------------------------------
  	// QRMaskPattern
  	//---------------------------------------------------------------------
  
  	var QRMaskPattern = {
  		PATTERN000 : 0,
  		PATTERN001 : 1,
  		PATTERN010 : 2,
  		PATTERN011 : 3,
  		PATTERN100 : 4,
  		PATTERN101 : 5,
  		PATTERN110 : 6,
  		PATTERN111 : 7
  	};
  
  	//---------------------------------------------------------------------
  	// QRUtil
  	//---------------------------------------------------------------------
  
  	var QRUtil = function() {
  
  		var PATTERN_POSITION_TABLE = [
  			[],
  			[6, 18],
  			[6, 22],
  			[6, 26],
  			[6, 30],
  			[6, 34],
  			[6, 22, 38],
  			[6, 24, 42],
  			[6, 26, 46],
  			[6, 28, 50],
  			[6, 30, 54],
  			[6, 32, 58],
  			[6, 34, 62],
  			[6, 26, 46, 66],
  			[6, 26, 48, 70],
  			[6, 26, 50, 74],
  			[6, 30, 54, 78],
  			[6, 30, 56, 82],
  			[6, 30, 58, 86],
  			[6, 34, 62, 90],
  			[6, 28, 50, 72, 94],
  			[6, 26, 50, 74, 98],
  			[6, 30, 54, 78, 102],
  			[6, 28, 54, 80, 106],
  			[6, 32, 58, 84, 110],
  			[6, 30, 58, 86, 114],
  			[6, 34, 62, 90, 118],
  			[6, 26, 50, 74, 98, 122],
  			[6, 30, 54, 78, 102, 126],
  			[6, 26, 52, 78, 104, 130],
  			[6, 30, 56, 82, 108, 134],
  			[6, 34, 60, 86, 112, 138],
  			[6, 30, 58, 86, 114, 142],
  			[6, 34, 62, 90, 118, 146],
  			[6, 30, 54, 78, 102, 126, 150],
  			[6, 24, 50, 76, 102, 128, 154],
  			[6, 28, 54, 80, 106, 132, 158],
  			[6, 32, 58, 84, 110, 136, 162],
  			[6, 26, 54, 82, 110, 138, 166],
  			[6, 30, 58, 86, 114, 142, 170]
  		];
  		var G15 = (1 << 10) | (1 << 8) | (1 << 5) | (1 << 4) | (1 << 2) | (1 << 1) | (1 << 0);
  		var G18 = (1 << 12) | (1 << 11) | (1 << 10) | (1 << 9) | (1 << 8) | (1 << 5) | (1 << 2) | (1 << 0);
  		var G15_MASK = (1 << 14) | (1 << 12) | (1 << 10) | (1 << 4) | (1 << 1);
  
  		var _this = {};
  
  		var getBCHDigit = function(data) {
  			var digit = 0;
  			while (data != 0) {
  				digit++;
  				data >>>= 1;
  			}
  			return digit;
  		};
  
  		_this.getBCHTypeInfo = function(data) {
  			var d = data << 10;
  			while (getBCHDigit(d) - getBCHDigit(G15) >= 0) {
  				d ^= (G15 << (getBCHDigit(d) - getBCHDigit(G15) ) );
  			}
  			return ( (data << 10) | d) ^ G15_MASK;
  		};
  
  		_this.getBCHTypeNumber = function(data) {
  			var d = data << 12;
  			while (getBCHDigit(d) - getBCHDigit(G18) >= 0) {
  				d ^= (G18 << (getBCHDigit(d) - getBCHDigit(G18) ) );
  			}
  			return (data << 12) | d;
  		};
  
  		_this.getPatternPosition = function(typeNumber) {
  			return PATTERN_POSITION_TABLE[typeNumber - 1];
  		};
  
  		_this.getMaskFunction = function(maskPattern) {
  
  			switch (maskPattern) {
  
  			case QRMaskPattern.PATTERN000 :
  				return function(i, j) { return (i + j) % 2 == 0; };
  			case QRMaskPattern.PATTERN001 :
  				return function(i, j) { return i % 2 == 0; };
  			case QRMaskPattern.PATTERN010 :
  				return function(i, j) { return j % 3 == 0; };
  			case QRMaskPattern.PATTERN011 :
  				return function(i, j) { return (i + j) % 3 == 0; };
  			case QRMaskPattern.PATTERN100 :
  				return function(i, j) { return (Math.floor(i / 2) + Math.floor(j / 3) ) % 2 == 0; };
  			case QRMaskPattern.PATTERN101 :
  				return function(i, j) { return (i * j) % 2 + (i * j) % 3 == 0; };
  			case QRMaskPattern.PATTERN110 :
  				return function(i, j) { return ( (i * j) % 2 + (i * j) % 3) % 2 == 0; };
  			case QRMaskPattern.PATTERN111 :
  				return function(i, j) { return ( (i * j) % 3 + (i + j) % 2) % 2 == 0; };
  
  			default :
  				throw new Error('bad maskPattern:' + maskPattern);
  			}
  		};
  
  		_this.getErrorCorrectPolynomial = function(errorCorrectLength) {
  			var a = qrPolynomial([1], 0);
  			for (var i = 0; i < errorCorrectLength; i++) {
  				a = a.multiply(qrPolynomial([1, QRMath.gexp(i)], 0) );
  			}
  			return a;
  		};
  
  		_this.getLengthInBits = function(mode, type) {
  
  			if (1 <= type && type < 10) {
  
  				// 1 - 9
  
  				switch(mode) {
  				case QRMode.MODE_NUMBER 	: return 10;
  				case QRMode.MODE_ALPHA_NUM 	: return 9;
  				case QRMode.MODE_8BIT_BYTE	: return 8;
  				case QRMode.MODE_KANJI		: return 8;
  				default :
  					throw new Error('mode:' + mode);
  				}
  
  			} else if (type < 27) {
  
  				// 10 - 26
  
  				switch(mode) {
  				case QRMode.MODE_NUMBER 	: return 12;
  				case QRMode.MODE_ALPHA_NUM 	: return 11;
  				case QRMode.MODE_8BIT_BYTE	: return 16;
  				case QRMode.MODE_KANJI		: return 10;
  				default :
  					throw new Error('mode:' + mode);
  				}
  
  			} else if (type < 41) {
  
  				// 27 - 40
  
  				switch(mode) {
  				case QRMode.MODE_NUMBER 	: return 14;
  				case QRMode.MODE_ALPHA_NUM	: return 13;
  				case QRMode.MODE_8BIT_BYTE	: return 16;
  				case QRMode.MODE_KANJI		: return 12;
  				default :
  					throw new Error('mode:' + mode);
  				}
  
  			} else {
  				throw new Error('type:' + type);
  			}
  		};
  
  		_this.getLostPoint = function(qrcode) {
  
  			var moduleCount = qrcode.getModuleCount();
  
  			var lostPoint = 0;
  
  			// LEVEL1
  
  			for (var row = 0; row < moduleCount; row++) {
  				for (var col = 0; col < moduleCount; col++) {
  
  					var sameCount = 0;
  					var dark = qrcode.isDark(row, col);
  
  					for (var r = -1; r <= 1; r++) {
  
  						if (row + r < 0 || moduleCount <= row + r) {
  							continue;
  						}
  
  						for (var c = -1; c <= 1; c++) {
  
  							if (col + c < 0 || moduleCount <= col + c) {
  								continue;
  							}
  
  							if (r == 0 && c == 0) {
  								continue;
  							}
  
  							if (dark == qrcode.isDark(row + r, col + c) ) {
  								sameCount++;
  							}
  						}
  					}
  
  					if (sameCount > 5) {
  						lostPoint += (3 + sameCount - 5);
  					}
  				}
  			};
  
  			// LEVEL2
  
  			for (var row = 0; row < moduleCount - 1; row++) {
  				for (var col = 0; col < moduleCount - 1; col++) {
  					var count = 0;
  					if (qrcode.isDark(row, col) ) count++;
  					if (qrcode.isDark(row + 1, col) ) count++;
  					if (qrcode.isDark(row, col + 1) ) count++;
  					if (qrcode.isDark(row + 1, col + 1) ) count++;
  					if (count == 0 || count == 4) {
  						lostPoint += 3;
  					}
  				}
  			}
  
  			// LEVEL3
  
  			for (var row = 0; row < moduleCount; row++) {
  				for (var col = 0; col < moduleCount - 6; col++) {
  					if (qrcode.isDark(row, col)
  							&& !qrcode.isDark(row, col + 1)
  							&&  qrcode.isDark(row, col + 2)
  							&&  qrcode.isDark(row, col + 3)
  							&&  qrcode.isDark(row, col + 4)
  							&& !qrcode.isDark(row, col + 5)
  							&&  qrcode.isDark(row, col + 6) ) {
  						lostPoint += 40;
  					}
  				}
  			}
  
  			for (var col = 0; col < moduleCount; col++) {
  				for (var row = 0; row < moduleCount - 6; row++) {
  					if (qrcode.isDark(row, col)
  							&& !qrcode.isDark(row + 1, col)
  							&&  qrcode.isDark(row + 2, col)
  							&&  qrcode.isDark(row + 3, col)
  							&&  qrcode.isDark(row + 4, col)
  							&& !qrcode.isDark(row + 5, col)
  							&&  qrcode.isDark(row + 6, col) ) {
  						lostPoint += 40;
  					}
  				}
  			}
  
  			// LEVEL4
  
  			var darkCount = 0;
  
  			for (var col = 0; col < moduleCount; col++) {
  				for (var row = 0; row < moduleCount; row++) {
  					if (qrcode.isDark(row, col) ) {
  						darkCount++;
  					}
  				}
  			}
  
  			var ratio = Math.abs(100 * darkCount / moduleCount / moduleCount - 50) / 5;
  			lostPoint += ratio * 10;
  
  			return lostPoint;
  		};
  
  		return _this;
  	}();
  
  	//---------------------------------------------------------------------
  	// QRMath
  	//---------------------------------------------------------------------
  
  	var QRMath = function() {
  
  		var EXP_TABLE = [];
  		var LOG_TABLE = [];
  
  		// initialize tables
  		for (var i = 0; i < 8; i++) {
  			EXP_TABLE[i] = 1 << i;
  		}
  		for (var i = 8; i < 256; i++) {
  			EXP_TABLE[i] = EXP_TABLE[i - 4]
  				^ EXP_TABLE[i - 5]
  				^ EXP_TABLE[i - 6]
  				^ EXP_TABLE[i - 8];
  		}
  		for (var i = 0; i < 255; i++) {
  			LOG_TABLE[EXP_TABLE[i] ] = i;
  		}
  
  		var _this = {};
  
  		_this.glog = function(n) {
  
  			if (n < 1) {
  				throw new Error('glog(' + n + ')');
  			}
  
  			return LOG_TABLE[n];
  		};
  
  		_this.gexp = function(n) {
  
  			while (n < 0) {
  				n += 255;
  			}
  
  			while (n >= 256) {
  				n -= 255;
  			}
  
  			return EXP_TABLE[n];
  		};
  
  		return _this;
  	}();
  
  	//---------------------------------------------------------------------
  	// qrPolynomial
  	//---------------------------------------------------------------------
  
  	function qrPolynomial(num, shift) {
  
  		if (typeof num.length == 'undefined') {
  			throw new Error(num.length + '/' + shift);
  		}
  
  		var _num = function() {
  			var offset = 0;
  			while (offset < num.length && num[offset] == 0) {
  				offset++;
  			}
  			var _num = new Array(num.length - offset + shift);
  			for (var i = 0; i < num.length - offset; i++) {
  				_num[i] = num[i + offset];
  			}
  			return _num;
  		}();
  
  		var _this = {};
  
  		_this.get = function(index) {
  			return _num[index];
  		};
  
  		_this.getLength = function() {
  			return _num.length;
  		};
  
  		_this.multiply = function(e) {
  
  			var num = [];
  
  			for (var i = 0; i < _this.getLength(); i++) {
  				for (var j = 0; j < e.getLength(); j++) {
  					num[i + j] ^= QRMath.gexp(QRMath.glog(_this.get(i) ) + QRMath.glog(e.get(j) ) );
  				}
  			}
  
  			return qrPolynomial(num, 0);
  		};
  
  		_this.mod = function(e) {
  
  			if (_this.getLength() - e.getLength() < 0) {
  				return _this;
  			}
  
  			var ratio = QRMath.glog(_this.get(0) ) - QRMath.glog(e.get(0) );
  
  			var num = [];
  			for (var i = 0; i < _this.getLength(); i++) {
  				num[i] = _this.get(i);
  			}
  
  			for (var i = 0; i < e.getLength(); i++) {
  				num[i] ^= QRMath.gexp(QRMath.glog(e.get(i) ) + ratio);
  			}
  
  			// recursive call
  			return qrPolynomial(num, 0).mod(e);
  		};
  
  		return _this;
  	};
  
  	//---------------------------------------------------------------------
  	// QRRSBlock
  	//---------------------------------------------------------------------
  
  	var QRRSBlock = function() {
  
  		var RS_BLOCK_TABLE = [
  
  			// L
  			// M
  			// Q
  			// H
  
  			// 1
  			[1, 26, 19],
  			[1, 26, 16],
  			[1, 26, 13],
  			[1, 26, 9],
  
  			// 2
  			[1, 44, 34],
  			[1, 44, 28],
  			[1, 44, 22],
  			[1, 44, 16],
  
  			// 3
  			[1, 70, 55],
  			[1, 70, 44],
  			[2, 35, 17],
  			[2, 35, 13],
  
  			// 4
  			[1, 100, 80],
  			[2, 50, 32],
  			[2, 50, 24],
  			[4, 25, 9],
  
  			// 5
  			[1, 134, 108],
  			[2, 67, 43],
  			[2, 33, 15, 2, 34, 16],
  			[2, 33, 11, 2, 34, 12],
  
  			// 6
  			[2, 86, 68],
  			[4, 43, 27],
  			[4, 43, 19],
  			[4, 43, 15],
  
  			// 7
  			[2, 98, 78],
  			[4, 49, 31],
  			[2, 32, 14, 4, 33, 15],
  			[4, 39, 13, 1, 40, 14],
  
  			// 8
  			[2, 121, 97],
  			[2, 60, 38, 2, 61, 39],
  			[4, 40, 18, 2, 41, 19],
  			[4, 40, 14, 2, 41, 15],
  
  			// 9
  			[2, 146, 116],
  			[3, 58, 36, 2, 59, 37],
  			[4, 36, 16, 4, 37, 17],
  			[4, 36, 12, 4, 37, 13],
  
  			// 10
  			[2, 86, 68, 2, 87, 69],
  			[4, 69, 43, 1, 70, 44],
  			[6, 43, 19, 2, 44, 20],
  			[6, 43, 15, 2, 44, 16]
  		];
  
  		var qrRSBlock = function(totalCount, dataCount) {
  			var _this = {};
  			_this.totalCount = totalCount;
  			_this.dataCount = dataCount;
  			return _this;
  		};
  
  		var _this = {};
  
  		var getRsBlockTable = function(typeNumber, errorCorrectLevel) {
  
  			switch(errorCorrectLevel) {
  			case QRErrorCorrectLevel.L :
  				return RS_BLOCK_TABLE[(typeNumber - 1) * 4 + 0];
  			case QRErrorCorrectLevel.M :
  				return RS_BLOCK_TABLE[(typeNumber - 1) * 4 + 1];
  			case QRErrorCorrectLevel.Q :
  				return RS_BLOCK_TABLE[(typeNumber - 1) * 4 + 2];
  			case QRErrorCorrectLevel.H :
  				return RS_BLOCK_TABLE[(typeNumber - 1) * 4 + 3];
  			default :
  				return undefined;
  			}
  		};
  
  		_this.getRSBlocks = function(typeNumber, errorCorrectLevel) {
  
  			var rsBlock = getRsBlockTable(typeNumber, errorCorrectLevel);
  
  			if (typeof rsBlock == 'undefined') {
  				throw new Error('bad rs block @ typeNumber:' + typeNumber +
  						'/errorCorrectLevel:' + errorCorrectLevel);
  			}
  
  			var length = rsBlock.length / 3;
  
  			var list = [];
  
  			for (var i = 0; i < length; i++) {
  
  				var count = rsBlock[i * 3 + 0];
  				var totalCount = rsBlock[i * 3 + 1];
  				var dataCount = rsBlock[i * 3 + 2];
  
  				for (var j = 0; j < count; j++) {
  					list.push(qrRSBlock(totalCount, dataCount) );
  				}
  			}
  
  			return list;
  		};
  
  		return _this;
  	}();
  
  	//---------------------------------------------------------------------
  	// qrBitBuffer
  	//---------------------------------------------------------------------
  
  	var qrBitBuffer = function() {
  
  		var _buffer = [];
  		var _length = 0;
  
  		var _this = {};
  
  		_this.getBuffer = function() {
  			return _buffer;
  		};
  
  		_this.get = function(index) {
  			var bufIndex = Math.floor(index / 8);
  			return ( (_buffer[bufIndex] >>> (7 - index % 8) ) & 1) == 1;
  		};
  
  		_this.put = function(num, length) {
  			for (var i = 0; i < length; i++) {
  				_this.putBit( ( (num >>> (length - i - 1) ) & 1) == 1);
  			}
  		};
  
  		_this.getLengthInBits = function() {
  			return _length;
  		};
  
  		_this.putBit = function(bit) {
  
  			var bufIndex = Math.floor(_length / 8);
  			if (_buffer.length <= bufIndex) {
  				_buffer.push(0);
  			}
  
  			if (bit) {
  				_buffer[bufIndex] |= (0x80 >>> (_length % 8) );
  			}
  
  			_length++;
  		};
  
  		return _this;
  	};
  
  	//---------------------------------------------------------------------
  	// qr8BitByte
  	//---------------------------------------------------------------------
  
  	var qr8BitByte = function(data) {
  
  		var _mode = QRMode.MODE_8BIT_BYTE;
  		var _data = data;
  		var _bytes = qrcode.stringToBytes(data);
  
  		var _this = {};
  
  		_this.getMode = function() {
  			return _mode;
  		};
  
  		_this.getLength = function(buffer) {
  			return _bytes.length;
  		};
  
  		_this.write = function(buffer) {
  			for (var i = 0; i < _bytes.length; i++) {
  				buffer.put(_bytes[i], 8);
  			}
  		};
  
  		return _this;
  	};
  
  	//=====================================================================
  	// GIF Support etc.
  	//
  
  	//---------------------------------------------------------------------
  	// byteArrayOutputStream
  	//---------------------------------------------------------------------
  
  	var byteArrayOutputStream = function() {
  
  		var _bytes = [];
  
  		var _this = {};
  
  		_this.writeByte = function(b) {
  			_bytes.push(b & 0xff);
  		};
  
  		_this.writeShort = function(i) {
  			_this.writeByte(i);
  			_this.writeByte(i >>> 8);
  		};
  
  		_this.writeBytes = function(b, off, len) {
  			off = off || 0;
  			len = len || b.length;
  			for (var i = 0; i < len; i++) {
  				_this.writeByte(b[i + off]);
  			}
  		};
  
  		_this.writeString = function(s) {
  			for (var i = 0; i < s.length; i++) {
  				_this.writeByte(s.charCodeAt(i) );
  			}
  		};
  
  		_this.toByteArray = function() {
  			return _bytes;
  		};
  
  		_this.toString = function() {
  			var s = '';
  			s += '[';
  			for (var i = 0; i < _bytes.length; i++) {
  				if (i > 0) {
  					s += ',';
  				}
  				s += _bytes[i];
  			}
  			s += ']';
  			return s;
  		};
  
  		return _this;
  	};
  
  	//---------------------------------------------------------------------
  	// base64EncodeOutputStream
  	//---------------------------------------------------------------------
  
  	var base64EncodeOutputStream = function() {
  
  		var _buffer = 0;
  		var _buflen = 0;
  		var _length = 0;
  		var _base64 = '';
  
  		var _this = {};
  
  		var writeEncoded = function(b) {
  			_base64 += String.fromCharCode(encode(b & 0x3f) );
  		};
  
  		var encode = function(n) {
  			if (n < 0) {
  				// error.
  			} else if (n < 26) {
  				return 0x41 + n;
  			} else if (n < 52) {
  				return 0x61 + (n - 26);
  			} else if (n < 62) {
  				return 0x30 + (n - 52);
  			} else if (n == 62) {
  				return 0x2b;
  			} else if (n == 63) {
  				return 0x2f;
  			}
  			throw new Error('n:' + n);
  		};
  
  		_this.writeByte = function(n) {
  
  			_buffer = (_buffer << 8) | (n & 0xff);
  			_buflen += 8;
  			_length++;
  
  			while (_buflen >= 6) {
  				writeEncoded(_buffer >>> (_buflen - 6) );
  				_buflen -= 6;
  			}
  		};
  
  		_this.flush = function() {
  
  			if (_buflen > 0) {
  				writeEncoded(_buffer << (6 - _buflen) );
  				_buffer = 0;
  				_buflen = 0;
  			}
  
  			if (_length % 3 != 0) {
  				// padding
  				var padlen = 3 - _length % 3;
  				for (var i = 0; i < padlen; i++) {
  					_base64 += '=';
  				}
  			}
  		};
  
  		_this.toString = function() {
  			return _base64;
  		};
  
  		return _this;
  	};
  
  	//---------------------------------------------------------------------
  	// base64DecodeInputStream
  	//---------------------------------------------------------------------
  
  	var base64DecodeInputStream = function(str) {
  
  		var _str = str;
  		var _pos = 0;
  		var _buffer = 0;
  		var _buflen = 0;
  
  		var _this = {};
  
  		_this.read = function() {
  
  			while (_buflen < 8) {
  
  				if (_pos >= _str.length) {
  					if (_buflen == 0) {
  						return -1;
  					}
  					throw new Error('unexpected end of file./' + _buflen);
  				}
  
  				var c = _str.charAt(_pos);
  				_pos++;
  
  				if (c == '=') {
  					_buflen = 0;
  					return -1;
  				} else if (c.match(/^\s$/) ) {
  					// ignore if whitespace.
  					continue;
  				}
  
  				_buffer = (_buffer << 6) | decode(c.charCodeAt(0) );
  				_buflen += 6;
  			}
  
  			var n = (_buffer >>> (_buflen - 8) ) & 0xff;
  			_buflen -= 8;
  			return n;
  		};
  
  		var decode = function(c) {
  			if (0x41 <= c && c <= 0x5a) {
  				return c - 0x41;
  			} else if (0x61 <= c && c <= 0x7a) {
  				return c - 0x61 + 26;
  			} else if (0x30 <= c && c <= 0x39) {
  				return c - 0x30 + 52;
  			} else if (c == 0x2b) {
  				return 62;
  			} else if (c == 0x2f) {
  				return 63;
  			} else {
  				throw new Error('c:' + c);
  			}
  		};
  
  		return _this;
  	};
  
  	//---------------------------------------------------------------------
  	// gifImage (B/W)
  	//---------------------------------------------------------------------
  
  	var gifImage = function(width, height) {
  
  		var _width = width;
  		var _height = height;
  		var _data = [];
  
  		var _this = {};
  
  		_this.setPixel = function(x, y, pixel) {
  			_data[y * _width + x] = pixel;
  		};
  
  		_this.write = function(out) {
  
  			//---------------------------------
  			// GIF Signature
  
  			out.writeString('GIF87a');
  
  			//---------------------------------
  			// Screen Descriptor
  
  			out.writeShort(_width);
  			out.writeShort(_height);
  
  			out.writeByte(0x80); // 2bit
  			out.writeByte(0);
  			out.writeByte(0);
  
  			//---------------------------------
  			// Global Color Map
  
  			// black
  			out.writeByte(0x00);
  			out.writeByte(0x00);
  			out.writeByte(0x00);
  
  			// white
  			out.writeByte(0xff);
  			out.writeByte(0xff);
  			out.writeByte(0xff);
  
  			//---------------------------------
  			// Image Descriptor
  
  			out.writeString(',');
  			out.writeShort(0);
  			out.writeShort(0);
  			out.writeShort(_width);
  			out.writeShort(_height);
  			out.writeByte(0);
  
  			//---------------------------------
  			// Local Color Map
  
  			//---------------------------------
  			// Raster Data
  
  			var lzwMinCodeSize = 2;
  			var raster = getLZWRaster(lzwMinCodeSize);
  
  			out.writeByte(lzwMinCodeSize);
  
  			var offset = 0;
  
  			while (raster.length - offset > 255) {
  				out.writeByte(255);
  				out.writeBytes(raster, offset, 255);
  				offset += 255;
  			}
  
  			out.writeByte(raster.length - offset);
  			out.writeBytes(raster, offset, raster.length - offset);
  			out.writeByte(0x00);
  
  			//---------------------------------
  			// GIF Terminator
  			out.writeString(';');
  		};
  
  		var bitOutputStream = function(out) {
  
  			var _out = out;
  			var _bitLength = 0;
  			var _bitBuffer = 0;
  
  			var _this = {};
  
  			_this.write = function(data, length) {
  
  				if ( (data >>> length) != 0) {
  					throw new Error('length over');
  				}
  
  				while (_bitLength + length >= 8) {
  					_out.writeByte(0xff & ( (data << _bitLength) | _bitBuffer) );
  					length -= (8 - _bitLength);
  					data >>>= (8 - _bitLength);
  					_bitBuffer = 0;
  					_bitLength = 0;
  				}
  
  				_bitBuffer = (data << _bitLength) | _bitBuffer;
  				_bitLength = _bitLength + length;
  			};
  
  			_this.flush = function() {
  				if (_bitLength > 0) {
  					_out.writeByte(_bitBuffer);
  				}
  			};
  
  			return _this;
  		};
  
  		var getLZWRaster = function(lzwMinCodeSize) {
  
  			var clearCode = 1 << lzwMinCodeSize;
  			var endCode = (1 << lzwMinCodeSize) + 1;
  			var bitLength = lzwMinCodeSize + 1;
  
  			// Setup LZWTable
  			var table = lzwTable();
  
  			for (var i = 0; i < clearCode; i++) {
  				table.add(String.fromCharCode(i) );
  			}
  			table.add(String.fromCharCode(clearCode) );
  			table.add(String.fromCharCode(endCode) );
  
  			var byteOut = byteArrayOutputStream();
  			var bitOut = bitOutputStream(byteOut);
  
  			// clear code
  			bitOut.write(clearCode, bitLength);
  
  			var dataIndex = 0;
  
  			var s = String.fromCharCode(_data[dataIndex]);
  			dataIndex++;
  
  			while (dataIndex < _data.length) {
  
  				var c = String.fromCharCode(_data[dataIndex]);
  				dataIndex++;
  
  				if (table.contains(s + c) ) {
  
  					s = s + c;
  
  				} else {
  
  					bitOut.write(table.indexOf(s), bitLength);
  
  					if (table.size() < 0xfff) {
  
  						if (table.size() == (1 << bitLength) ) {
  							bitLength++;
  						}
  
  						table.add(s + c);
  					}
  
  					s = c;
  				}
  			}
  
  			bitOut.write(table.indexOf(s), bitLength);
  
  			// end code
  			bitOut.write(endCode, bitLength);
  
  			bitOut.flush();
  
  			return byteOut.toByteArray();
  		};
  
  		var lzwTable = function() {
  
  			var _map = {};
  			var _size = 0;
  
  			var _this = {};
  
  			_this.add = function(key) {
  				if (_this.contains(key) ) {
  					throw new Error('dup key:' + key);
  				}
  				_map[key] = _size;
  				_size++;
  			};
  
  			_this.size = function() {
  				return _size;
  			};
  
  			_this.indexOf = function(key) {
  				return _map[key];
  			};
  
  			_this.contains = function(key) {
  				return typeof _map[key] != 'undefined';
  			};
  
  			return _this;
  		};
  
  		return _this;
  	};
  
  	var createImgTag = function(width, height, getPixel, alt) {
  
  		var gif = gifImage(width, height);
  		for (var y = 0; y < height; y++) {
  			for (var x = 0; x < width; x++) {
  				gif.setPixel(x, y, getPixel(x, y) );
  			}
  		}
  
  		var b = byteArrayOutputStream();
  		gif.write(b);
  
  		var base64 = base64EncodeOutputStream();
  		var bytes = b.toByteArray();
  		for (var i = 0; i < bytes.length; i++) {
  			base64.writeByte(bytes[i]);
  		}
  		base64.flush();
  
  		var img = '';
  		img += '<img';
  		img += '\u0020src="';
  		img += 'data:image/gif;base64,';
  		img += base64;
  		img += '"';
  		img += '\u0020width="';
  		img += width;
  		img += '"';
  		img += '\u0020height="';
  		img += height;
  		img += '"';
  		if (alt) {
  			img += '\u0020alt="';
  			img += alt;
  			img += '"';
  		}
  		img += '/>';
  
  		return img;
  	};
  
  	//---------------------------------------------------------------------
  	// returns qrcode function.
  
  	return qrcode;
  }();