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Editing: jquery.qrcode.js

//---------------------------------------------------------------------
// QRCode 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
//
//---------------------------------------------------------------------

//---------------------------------------------------------------------
// QR8bitByte
//---------------------------------------------------------------------

function QR8bitByte(data) {
	this.mode = QRMode.MODE_8BIT_BYTE;
	this.data = data;
}

QR8bitByte.prototype = {

getLength : function(buffer) {
		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 = 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 = {
	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 = {

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++;
	}
};

(function( $ ){
	$.fn.qrcode = function(options) {
		// if options is string,
		if( typeof options === 'string' ){
			options	= { text: options };
		}

// set default values
		// typeNumber < 1 for automatic calculation
		options	= $.extend( {}, {
			render		: "canvas",
			width		: 256,
			height		: 256,
			typeNumber	: -1,
			correctLevel	: QRErrorCorrectLevel.H,
                        background      : "#ffffff",
                        foreground      : "#000000"
		}, options);

var createCanvas	= function(){
			// create the qrcode itself
			var qrcode	= new QRCode(options.typeNumber, options.correctLevel);
			qrcode.addData(options.text);
			qrcode.make();

// create canvas element
			var canvas	= document.createElement('canvas');
			canvas.width	= options.width;
			canvas.height	= options.height;
			var ctx		= canvas.getContext('2d');

// compute tileW/tileH based on options.width/options.height
			var tileW	= options.width  / qrcode.getModuleCount();
			var tileH	= options.height / qrcode.getModuleCount();

// draw in the canvas
			for( var row = 0; row < qrcode.getModuleCount(); row++ ){
				for( var col = 0; col < qrcode.getModuleCount(); col++ ){
					ctx.fillStyle = qrcode.isDark(row, col) ? options.foreground : options.background;
					var w = (Math.ceil((col+1)*tileW) - Math.floor(col*tileW));
					var h = (Math.ceil((row+1)*tileW) - Math.floor(row*tileW));
					ctx.fillRect(Math.round(col*tileW),Math.round(row*tileH), w, h);
				}
			}
			// return just built canvas
			return canvas;
		}

// from Jon-Carlos Rivera (https://github.com/imbcmdth)
		var createTable	= function(){
			// create the qrcode itself
			var qrcode	= new QRCode(options.typeNumber, options.correctLevel);
			qrcode.addData(options.text);
			qrcode.make();

// create table element
			var $table	= $('<table></table>')
				.css("width", options.width+"px")
				.css("height", options.height+"px")
				.css("border", "0px")
				.css("border-collapse", "collapse")
				.css('background-color', options.background);

// compute tileS percentage
			var tileW	= options.width / qrcode.getModuleCount();
			var tileH	= options.height / qrcode.getModuleCount();

// draw in the table
			for(var row = 0; row < qrcode.getModuleCount(); row++ ){
				var $row = $('<tr></tr>').css('height', tileH+"px").appendTo($table);

for(var col = 0; col < qrcode.getModuleCount(); col++ ){
					$('<td></td>')
						.css('width', tileW+"px")
						.css('background-color', qrcode.isDark(row, col) ? options.foreground : options.background)
						.appendTo($row);
				}
			}
			// return just built canvas
			return $table;
		}

return this.each(function(){
			var element	= options.render == "canvas" ? createCanvas() : createTable();
			$(element).appendTo(this);
		});
	};
})( jQuery );