text: function QR8bitByte(data) {
  	this.mode = QRMode.MODE_8BIT_BYTE;
  	this.data = data;
  }
  
  QR8bitByte.prototype = {
  
  	getLength : function() {
  		return this.data.length;
  	},
  
  	write : function(buffer) {
  		for (var i = 0; i < this.data.length; i++) {
  			// not JIS ...
  			buffer.put(this.data.charCodeAt(i), 8);
  		}
  	}
  };
  
  //---------------------------------------------------------------------
  // QRCode
  //---------------------------------------------------------------------
  
  function QRCode(typeNumber, errorCorrectLevel) {
  	this.typeNumber = typeNumber;
  	this.errorCorrectLevel = QRErrorCorrectLevel[errorCorrectLevel];
  	this.modules = null;
  	this.moduleCount = 0;
  	this.dataCache = null;
  	this.dataList = new Array();
  }
  
  QRCode.prototype = {
  
  	addData : function(data) {
  		var newData = new QR8bitByte(data);
  		this.dataList.push(newData);
  		this.dataCache = null;
  	},
  
  	isDark : function(row, col) {
  		if (row < 0 || this.moduleCount <= row || col < 0 || this.moduleCount <= col) {
  			throw new Error(row + "," + col);
  		}
  		return this.modules[row][col];
  	},
  
  	getModuleCount : function() {
  		return this.moduleCount;
  	},
  
  	make : function() {
  		// Calculate automatically typeNumber if provided is < 1
  		if (this.typeNumber < 1 ){
  			var typeNumber = 1;
  			for (typeNumber = 1; typeNumber < 40; typeNumber++) {
  				var rsBlocks = QRRSBlock.getRSBlocks(typeNumber, this.errorCorrectLevel);
  
  				var buffer = new QRBitBuffer();
  				var totalDataCount = 0;
  				for (var i = 0; i < rsBlocks.length; i++) {
  					totalDataCount += rsBlocks[i].dataCount;
  				}
  
  				for (var i = 0; i < this.dataList.length; i++) {
  					var data = this.dataList[i];
  					buffer.put(data.mode, 4);
  					buffer.put(data.getLength(), QRUtil.getLengthInBits(data.mode, typeNumber) );
  					data.write(buffer);
  				}
  				if (buffer.getLengthInBits() <= totalDataCount * 8)
  					break;
  			}
  			this.typeNumber = typeNumber;
  		}
  		this.makeImpl(false, this.getBestMaskPattern() );
  	},
  
  	makeImpl : function(test, maskPattern) {
  
  		this.moduleCount = this.typeNumber * 4 + 17;
  		this.modules = new Array(this.moduleCount);
  
  		for (var row = 0; row < this.moduleCount; row++) {
  
  			this.modules[row] = new Array(this.moduleCount);
  
  			for (var col = 0; col < this.moduleCount; col++) {
  				this.modules[row][col] = null;//(col + row) % 3;
  			}
  		}
  
  		this.setupPositionProbePattern(0, 0);
  		this.setupPositionProbePattern(this.moduleCount - 7, 0);
  		this.setupPositionProbePattern(0, this.moduleCount - 7);
  		this.setupPositionAdjustPattern();
  		this.setupTimingPattern();
  		this.setupTypeInfo(test, maskPattern);
  
  		if (this.typeNumber >= 7) {
  			this.setupTypeNumber(test);
  		}
  
  		if (this.dataCache == null) {
  			this.dataCache = QRCode.createData(this.typeNumber, this.errorCorrectLevel, this.dataList);
  		}
  
  		this.mapData(this.dataCache, maskPattern);
  	},
  
  	setupPositionProbePattern : function(row, col)  {
  
  		for (var r = -1; r <= 7; r++) {
  
  			if (row + r <= -1 || this.moduleCount <= row + r) continue;
  
  			for (var c = -1; c <= 7; c++) {
  
  				if (col + c <= -1 || this.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) ) {
  					this.modules[row + r][col + c] = true;
  				} else {
  					this.modules[row + r][col + c] = false;
  				}
  			}
  		}
  	},
  
  	getBestMaskPattern : function() {
  
  		var minLostPoint = 0;
  		var pattern = 0;
  
  		for (var i = 0; i < 8; i++) {
  
  			this.makeImpl(true, i);
  
  			var lostPoint = QRUtil.getLostPoint(this);
  
  			if (i == 0 || minLostPoint >  lostPoint) {
  				minLostPoint = lostPoint;
  				pattern = i;
  			}
  		}
  
  		return pattern;
  	},
  
  	createMovieClip : function(target_mc, instance_name, depth) {
  
  		var qr_mc = target_mc.createEmptyMovieClip(instance_name, depth);
  		var cs = 1;
  
  		this.make();
  
  		for (var row = 0; row < this.modules.length; row++) {
  
  			var y = row * cs;
  
  			for (var col = 0; col < this.modules[row].length; col++) {
  
  				var x = col * cs;
  				var dark = this.modules[row][col];
  
  				if (dark) {
  					qr_mc.beginFill(0, 100);
  					qr_mc.moveTo(x, y);
  					qr_mc.lineTo(x + cs, y);
  					qr_mc.lineTo(x + cs, y + cs);
  					qr_mc.lineTo(x, y + cs);
  					qr_mc.endFill();
  				}
  			}
  		}
  
  		return qr_mc;
  	},
  
  	setupTimingPattern : function() {
  
  		for (var r = 8; r < this.moduleCount - 8; r++) {
  			if (this.modules[r][6] != null) {
  				continue;
  			}
  			this.modules[r][6] = (r % 2 == 0);
  		}
  
  		for (var c = 8; c < this.moduleCount - 8; c++) {
  			if (this.modules[6][c] != null) {
  				continue;
  			}
  			this.modules[6][c] = (c % 2 == 0);
  		}
  	},
  
  	setupPositionAdjustPattern : function() {
  
  		var pos = QRUtil.getPatternPosition(this.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 (this.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) ) {
  							this.modules[row + r][col + c] = true;
  						} else {
  							this.modules[row + r][col + c] = false;
  						}
  					}
  				}
  			}
  		}
  	},
  
  	setupTypeNumber : function(test) {
  
  		var bits = QRUtil.getBCHTypeNumber(this.typeNumber);
  
  		for (var i = 0; i < 18; i++) {
  			var mod = (!test && ( (bits >> i) & 1) == 1);
  			this.modules[Math.floor(i / 3)][i % 3 + this.moduleCount - 8 - 3] = mod;
  		}
  
  		for (var i = 0; i < 18; i++) {
  			var mod = (!test && ( (bits >> i) & 1) == 1);
  			this.modules[i % 3 + this.moduleCount - 8 - 3][Math.floor(i / 3)] = mod;
  		}
  	},
  
  	setupTypeInfo : function(test, maskPattern) {
  
  		var data = (this.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) {
  				this.modules[i][8] = mod;
  			} else if (i < 8) {
  				this.modules[i + 1][8] = mod;
  			} else {
  				this.modules[this.moduleCount - 15 + i][8] = mod;
  			}
  		}
  
  		// horizontal
  		for (var i = 0; i < 15; i++) {
  
  			var mod = (!test && ( (bits >> i) & 1) == 1);
  
  			if (i < 8) {
  				this.modules[8][this.moduleCount - i - 1] = mod;
  			} else if (i < 9) {
  				this.modules[8][15 - i - 1 + 1] = mod;
  			} else {
  				this.modules[8][15 - i - 1] = mod;
  			}
  		}
  
  		// fixed module
  		this.modules[this.moduleCount - 8][8] = (!test);
  
  	},
  
  	mapData : function(data, maskPattern) {
  
  		var inc = -1;
  		var row = this.moduleCount - 1;
  		var bitIndex = 7;
  		var byteIndex = 0;
  
  		for (var col = this.moduleCount - 1; col > 0; col -= 2) {
  
  			if (col == 6) col--;
  
  			while (true) {
  
  				for (var c = 0; c < 2; c++) {
  
  					if (this.modules[row][col - c] == null) {
  
  						var dark = false;
  
  						if (byteIndex < data.length) {
  							dark = ( ( (data[byteIndex] >>> bitIndex) & 1) == 1);
  						}
  
  						var mask = QRUtil.getMask(maskPattern, row, col - c);
  
  						if (mask) {
  							dark = !dark;
  						}
  
  						this.modules[row][col - c] = dark;
  						bitIndex--;
  
  						if (bitIndex == -1) {
  							byteIndex++;
  							bitIndex = 7;
  						}
  					}
  				}
  
  				row += inc;
  
  				if (row < 0 || this.moduleCount <= row) {
  					row -= inc;
  					inc = -inc;
  					break;
  				}
  			}
  		}
  
  	}
  
  };
  
  QRCode.PAD0 = 0xEC;
  QRCode.PAD1 = 0x11;
  
  QRCode.createData = function(typeNumber, errorCorrectLevel, dataList) {
  
  	var rsBlocks = QRRSBlock.getRSBlocks(typeNumber, errorCorrectLevel);
  
  	var buffer = new QRBitBuffer();
  
  	for (var i = 0; i < dataList.length; i++) {
  		var data = dataList[i];
  		buffer.put(data.mode, 4);
  		buffer.put(data.getLength(), QRUtil.getLengthInBits(data.mode, 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(QRCode.PAD0, 8);
  
  		if (buffer.getLengthInBits() >= totalDataCount * 8) {
  			break;
  		}
  		buffer.put(QRCode.PAD1, 8);
  	}
  
  	return QRCode.createBytes(buffer, rsBlocks);
  }
  
  QRCode.createBytes = function(buffer, rsBlocks) {
  
  	var offset = 0;
  
  	var maxDcCount = 0;
  	var maxEcCount = 0;
  
  	var dcdata = new Array(rsBlocks.length);
  	var ecdata = new Array(rsBlocks.length);
  
  	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] = new Array(dcCount);
  
  		for (var i = 0; i < dcdata[r].length; i++) {
  			dcdata[r][i] = 0xff & buffer.buffer[i + offset];
  		}
  		offset += dcCount;
  
  		var rsPoly = QRUtil.getErrorCorrectPolynomial(ecCount);
  		var rawPoly = new QRPolynomial(dcdata[r], rsPoly.getLength() - 1);
  
  		var modPoly = rawPoly.mod(rsPoly);
  		ecdata[r] = new Array(rsPoly.getLength() - 1);
  		for (var i = 0; i < ecdata[r].length; i++) {
              var modIndex = i + modPoly.getLength() - ecdata[r].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 = new Array(totalCodeCount);
  	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];
  			}
  		}
  	}
  
  	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];
  			}
  		}
  	}
  
  	return data;
  
  }
  
  //---------------------------------------------------------------------
  // QRMode
  //---------------------------------------------------------------------
  
  var QRMode = {
  	MODE_NUMBER :		1 << 0,
  	MODE_ALPHA_NUM : 	1 << 1,
  	MODE_8BIT_BYTE : 	1 << 2,
  	MODE_KANJI :		1 << 3
  };
  
  //---------------------------------------------------------------------
  // QRErrorCorrectLevel
  //---------------------------------------------------------------------
  
  var QRErrorCorrectLevel = {
  	M : 0,
      L : 1,
      H : 2,
  	Q : 3
  };
  
  //---------------------------------------------------------------------
  // QRMaskPattern
  //---------------------------------------------------------------------
  
  var QRMaskPattern = {
  	PATTERN000 : 0,
  	PATTERN001 : 1,
  	PATTERN010 : 2,
  	PATTERN011 : 3,
  	PATTERN100 : 4,
  	PATTERN101 : 5,
  	PATTERN110 : 6,
  	PATTERN111 : 7
  };
  
  //---------------------------------------------------------------------
  // QRUtil
  //---------------------------------------------------------------------
  
  var QRUtil = {
  
      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]
      ],
  
      G15 : (1 << 10) | (1 << 8) | (1 << 5) | (1 << 4) | (1 << 2) | (1 << 1) | (1 << 0),
      G18 : (1 << 12) | (1 << 11) | (1 << 10) | (1 << 9) | (1 << 8) | (1 << 5) | (1 << 2) | (1 << 0),
      G15_MASK : (1 << 14) | (1 << 12) | (1 << 10)	| (1 << 4) | (1 << 1),
  
      getBCHTypeInfo : function(data) {
  	    var d = data << 10;
  	    while (QRUtil.getBCHDigit(d) - QRUtil.getBCHDigit(QRUtil.G15) >= 0) {
  		    d ^= (QRUtil.G15 << (QRUtil.getBCHDigit(d) - QRUtil.getBCHDigit(QRUtil.G15) ) );
  	    }
  	    return ( (data << 10) | d) ^ QRUtil.G15_MASK;
      },
  
      getBCHTypeNumber : function(data) {
  	    var d = data << 12;
  	    while (QRUtil.getBCHDigit(d) - QRUtil.getBCHDigit(QRUtil.G18) >= 0) {
  		    d ^= (QRUtil.G18 << (QRUtil.getBCHDigit(d) - QRUtil.getBCHDigit(QRUtil.G18) ) );
  	    }
  	    return (data << 12) | d;
      },
  
      getBCHDigit : function(data) {
  
  	    var digit = 0;
  
  	    while (data != 0) {
  		    digit++;
  		    data >>>= 1;
  	    }
  
  	    return digit;
      },
  
      getPatternPosition : function(typeNumber) {
  	    return QRUtil.PATTERN_POSITION_TABLE[typeNumber - 1];
      },
  
      getMask : function(maskPattern, i, j) {
  
  	    switch (maskPattern) {
  
  	    case QRMaskPattern.PATTERN000 : return (i + j) % 2 == 0;
  	    case QRMaskPattern.PATTERN001 : return i % 2 == 0;
  	    case QRMaskPattern.PATTERN010 : return j % 3 == 0;
  	    case QRMaskPattern.PATTERN011 : return (i + j) % 3 == 0;
  	    case QRMaskPattern.PATTERN100 : return (Math.floor(i / 2) + Math.floor(j / 3) ) % 2 == 0;
  	    case QRMaskPattern.PATTERN101 : return (i * j) % 2 + (i * j) % 3 == 0;
  	    case QRMaskPattern.PATTERN110 : return ( (i * j) % 2 + (i * j) % 3) % 2 == 0;
  	    case QRMaskPattern.PATTERN111 : return ( (i * j) % 3 + (i + j) % 2) % 2 == 0;
  
  	    default :
  		    throw new Error("bad maskPattern:" + maskPattern);
  	    }
      },
  
      getErrorCorrectPolynomial : function(errorCorrectLength) {
  
  	    var a = new QRPolynomial([1], 0);
  
  	    for (var i = 0; i < errorCorrectLength; i++) {
  		    a = a.multiply(new QRPolynomial([1, QRMath.gexp(i)], 0) );
  	    }
  
  	    return a;
      },
  
      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);
  	    }
      },
  
      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;
      }
  
  };
  
  
  //---------------------------------------------------------------------
  // QRMath
  //---------------------------------------------------------------------
  
  var QRMath = {
  
  	glog : function(n) {
  
  		if (n < 1) {
  			throw new Error("glog(" + n + ")");
  		}
  
  		return QRMath.LOG_TABLE[n];
  	},
  
  	gexp : function(n) {
  
  		while (n < 0) {
  			n += 255;
  		}
  
  		while (n >= 256) {
  			n -= 255;
  		}
  
  		return QRMath.EXP_TABLE[n];
  	},
  
  	EXP_TABLE : new Array(256),
  
  	LOG_TABLE : new Array(256)
  
  };
  
  for (var i = 0; i < 8; i++) {
  	QRMath.EXP_TABLE[i] = 1 << i;
  }
  for (var i = 8; i < 256; i++) {
  	QRMath.EXP_TABLE[i] = QRMath.EXP_TABLE[i - 4]
  		^ QRMath.EXP_TABLE[i - 5]
  		^ QRMath.EXP_TABLE[i - 6]
  		^ QRMath.EXP_TABLE[i - 8];
  }
  for (var i = 0; i < 255; i++) {
  	QRMath.LOG_TABLE[QRMath.EXP_TABLE[i] ] = i;
  }
  
  //---------------------------------------------------------------------
  // QRPolynomial
  //---------------------------------------------------------------------
  
  function QRPolynomial(num, shift) {
  
  	if (num.length == undefined) {
  		throw new Error(num.length + "/" + shift);
  	}
  
  	var offset = 0;
  
  	while (offset < num.length && num[offset] == 0) {
  		offset++;
  	}
  
  	this.num = new Array(num.length - offset + shift);
  	for (var i = 0; i < num.length - offset; i++) {
  		this.num[i] = num[i + offset];
  	}
  }
  
  QRPolynomial.prototype = {
  
  	get : function(index) {
  		return this.num[index];
  	},
  
  	getLength : function() {
  		return this.num.length;
  	},
  
  	multiply : function(e) {
  
  		var num = new Array(this.getLength() + e.getLength() - 1);
  
  		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 new QRPolynomial(num, 0);
  	},
  
  	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 = new Array(this.getLength() );
  
  		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 new QRPolynomial(num, 0).mod(e);
  	}
  };
  
  //---------------------------------------------------------------------
  // QRRSBlock
  //---------------------------------------------------------------------
  
  function QRRSBlock(totalCount, dataCount) {
  	this.totalCount = totalCount;
  	this.dataCount  = dataCount;
  }
  
  QRRSBlock.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],
  
  	// 11
  	[4, 101, 81],
  	[1, 80, 50, 4, 81, 51],
  	[4, 50, 22, 4, 51, 23],
  	[3, 36, 12, 8, 37, 13],
  
  	// 12
  	[2, 116, 92, 2, 117, 93],
  	[6, 58, 36, 2, 59, 37],
  	[4, 46, 20, 6, 47, 21],
  	[7, 42, 14, 4, 43, 15],
  
  	// 13
  	[4, 133, 107],
  	[8, 59, 37, 1, 60, 38],
  	[8, 44, 20, 4, 45, 21],
  	[12, 33, 11, 4, 34, 12],
  
  	// 14
  	[3, 145, 115, 1, 146, 116],
  	[4, 64, 40, 5, 65, 41],
  	[11, 36, 16, 5, 37, 17],
  	[11, 36, 12, 5, 37, 13],
  
  	// 15
  	[5, 109, 87, 1, 110, 88],
  	[5, 65, 41, 5, 66, 42],
  	[5, 54, 24, 7, 55, 25],
  	[11, 36, 12],
  
  	// 16
  	[5, 122, 98, 1, 123, 99],
  	[7, 73, 45, 3, 74, 46],
  	[15, 43, 19, 2, 44, 20],
  	[3, 45, 15, 13, 46, 16],
  
  	// 17
  	[1, 135, 107, 5, 136, 108],
  	[10, 74, 46, 1, 75, 47],
  	[1, 50, 22, 15, 51, 23],
  	[2, 42, 14, 17, 43, 15],
  
  	// 18
  	[5, 150, 120, 1, 151, 121],
  	[9, 69, 43, 4, 70, 44],
  	[17, 50, 22, 1, 51, 23],
  	[2, 42, 14, 19, 43, 15],
  
  	// 19
  	[3, 141, 113, 4, 142, 114],
  	[3, 70, 44, 11, 71, 45],
  	[17, 47, 21, 4, 48, 22],
  	[9, 39, 13, 16, 40, 14],
  
  	// 20
  	[3, 135, 107, 5, 136, 108],
  	[3, 67, 41, 13, 68, 42],
  	[15, 54, 24, 5, 55, 25],
  	[15, 43, 15, 10, 44, 16],
  
  	// 21
  	[4, 144, 116, 4, 145, 117],
  	[17, 68, 42],
  	[17, 50, 22, 6, 51, 23],
  	[19, 46, 16, 6, 47, 17],
  
  	// 22
  	[2, 139, 111, 7, 140, 112],
  	[17, 74, 46],
  	[7, 54, 24, 16, 55, 25],
  	[34, 37, 13],
  
  	// 23
  	[4, 151, 121, 5, 152, 122],
  	[4, 75, 47, 14, 76, 48],
  	[11, 54, 24, 14, 55, 25],
  	[16, 45, 15, 14, 46, 16],
  
  	// 24
  	[6, 147, 117, 4, 148, 118],
  	[6, 73, 45, 14, 74, 46],
  	[11, 54, 24, 16, 55, 25],
  	[30, 46, 16, 2, 47, 17],
  
  	// 25
  	[8, 132, 106, 4, 133, 107],
  	[8, 75, 47, 13, 76, 48],
  	[7, 54, 24, 22, 55, 25],
  	[22, 45, 15, 13, 46, 16],
  
  	// 26
  	[10, 142, 114, 2, 143, 115],
  	[19, 74, 46, 4, 75, 47],
  	[28, 50, 22, 6, 51, 23],
  	[33, 46, 16, 4, 47, 17],
  
  	// 27
  	[8, 152, 122, 4, 153, 123],
  	[22, 73, 45, 3, 74, 46],
  	[8, 53, 23, 26, 54, 24],
  	[12, 45, 15, 28, 46, 16],
  
  	// 28
  	[3, 147, 117, 10, 148, 118],
  	[3, 73, 45, 23, 74, 46],
  	[4, 54, 24, 31, 55, 25],
  	[11, 45, 15, 31, 46, 16],
  
  	// 29
  	[7, 146, 116, 7, 147, 117],
  	[21, 73, 45, 7, 74, 46],
  	[1, 53, 23, 37, 54, 24],
  	[19, 45, 15, 26, 46, 16],
  
  	// 30
  	[5, 145, 115, 10, 146, 116],
  	[19, 75, 47, 10, 76, 48],
  	[15, 54, 24, 25, 55, 25],
  	[23, 45, 15, 25, 46, 16],
  
  	// 31
  	[13, 145, 115, 3, 146, 116],
  	[2, 74, 46, 29, 75, 47],
  	[42, 54, 24, 1, 55, 25],
  	[23, 45, 15, 28, 46, 16],
  
  	// 32
  	[17, 145, 115],
  	[10, 74, 46, 23, 75, 47],
  	[10, 54, 24, 35, 55, 25],
  	[19, 45, 15, 35, 46, 16],
  
  	// 33
  	[17, 145, 115, 1, 146, 116],
  	[14, 74, 46, 21, 75, 47],
  	[29, 54, 24, 19, 55, 25],
  	[11, 45, 15, 46, 46, 16],
  
  	// 34
  	[13, 145, 115, 6, 146, 116],
  	[14, 74, 46, 23, 75, 47],
  	[44, 54, 24, 7, 55, 25],
  	[59, 46, 16, 1, 47, 17],
  
  	// 35
  	[12, 151, 121, 7, 152, 122],
  	[12, 75, 47, 26, 76, 48],
  	[39, 54, 24, 14, 55, 25],
  	[22, 45, 15, 41, 46, 16],
  
  	// 36
  	[6, 151, 121, 14, 152, 122],
  	[6, 75, 47, 34, 76, 48],
  	[46, 54, 24, 10, 55, 25],
  	[2, 45, 15, 64, 46, 16],
  
  	// 37
  	[17, 152, 122, 4, 153, 123],
  	[29, 74, 46, 14, 75, 47],
  	[49, 54, 24, 10, 55, 25],
  	[24, 45, 15, 46, 46, 16],
  
  	// 38
  	[4, 152, 122, 18, 153, 123],
  	[13, 74, 46, 32, 75, 47],
  	[48, 54, 24, 14, 55, 25],
  	[42, 45, 15, 32, 46, 16],
  
  	// 39
  	[20, 147, 117, 4, 148, 118],
  	[40, 75, 47, 7, 76, 48],
  	[43, 54, 24, 22, 55, 25],
  	[10, 45, 15, 67, 46, 16],
  
  	// 40
  	[19, 148, 118, 6, 149, 119],
  	[18, 75, 47, 31, 76, 48],
  	[34, 54, 24, 34, 55, 25],
  	[20, 45, 15, 61, 46, 16]
  ];
  
  QRRSBlock.getRSBlocks = function(typeNumber, errorCorrectLevel) {
  
  	var rsBlock = QRRSBlock.getRsBlockTable(typeNumber, errorCorrectLevel);
  
  	if (rsBlock == undefined) {
  		throw new Error("bad rs block @ typeNumber:" + typeNumber + "/errorCorrectLevel:" + errorCorrectLevel);
  	}
  
  	var length = rsBlock.length / 3;
  
  	var list = new Array();
  
  	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(new QRRSBlock(totalCount, dataCount) );
  		}
  	}
  
  	return list;
  }
  
  QRRSBlock.getRsBlockTable = function(typeNumber, errorCorrectLevel) {
  
  	switch(errorCorrectLevel) {
  	case QRErrorCorrectLevel.L :
  		return QRRSBlock.RS_BLOCK_TABLE[(typeNumber - 1) * 4 + 0];
  	case QRErrorCorrectLevel.M :
  		return QRRSBlock.RS_BLOCK_TABLE[(typeNumber - 1) * 4 + 1];
  	case QRErrorCorrectLevel.Q :
  		return QRRSBlock.RS_BLOCK_TABLE[(typeNumber - 1) * 4 + 2];
  	case QRErrorCorrectLevel.H :
  		return QRRSBlock.RS_BLOCK_TABLE[(typeNumber - 1) * 4 + 3];
  	default :
  		return undefined;
  	}
  }
  
  //---------------------------------------------------------------------
  // QRBitBuffer
  //---------------------------------------------------------------------
  
  function QRBitBuffer() {
  	this.buffer = new Array();
  	this.length = 0;
  }
  
  QRBitBuffer.prototype = {
  
  	get : function(index) {
  		var bufIndex = Math.floor(index / 8);
  		return ( (this.buffer[bufIndex] >>> (7 - index % 8) ) & 1) == 1;
  	},
  
  	put : function(num, length) {
  		for (var i = 0; i < length; i++) {
  			this.putBit( ( (num >>> (length - i - 1) ) & 1) == 1);
  		}
  	},
  
  	getLengthInBits : function() {
  		return this.length;
  	},
  
  	putBit : function(bit) {
  
  		var bufIndex = Math.floor(this.length / 8);
  		if (this.buffer.length <= bufIndex) {
  			this.buffer.push(0);
  		}
  
  		if (bit) {
  			this.buffer[bufIndex] |= (0x80 >>> (this.length % 8) );
  		}
  
  		this.length++;
  	}
  };
  
  module.exports = QRCode;
  