text: var _aa = {};
  _aa._ab = function(f, e) {
      var d = qrcode.width;
      var b = qrcode.height;
      var c = true;
      for (var g = 0; g < e.length && c; g += 2) {
          var a = Math.floor(e[g]);
          var h = Math.floor(e[g + 1]);
          if (a < -1 || a > d || h < -1 || h > b) {
              throw "Error._ab "
          }
          c = false;
          if (a == -1) {
              e[g] = 0;
              c = true
          } else {
              if (a == d) {
                  e[g] = d - 1;
                  c = true
              }
          }
          if (h == -1) {
              e[g + 1] = 0;
              c = true
          } else {
              if (h == b) {
                  e[g + 1] = b - 1;
                  c = true
              }
          }
      }
      c = true;
      for (var g = e.length - 2; g >= 0 && c; g -= 2) {
          var a = Math.floor(e[g]);
          var h = Math.floor(e[g + 1]);
          if (a < -1 || a > d || h < -1 || h > b) {
              throw "Error._ab "
          }
          c = false;
          if (a == -1) {
              e[g] = 0;
              c = true
          } else {
              if (a == d) {
                  e[g] = d - 1;
                  c = true
              }
          }
          if (h == -1) {
              e[g + 1] = 0;
              c = true
          } else {
              if (h == b) {
                  e[g + 1] = b - 1;
                  c = true
              }
          }
      }
  }
  ;
  _aa._af = function(b, d, a) {
      var k = new _ac(d);
      var j = new Array(d << 1);
      for (var f = 0; f < d; f++) {
          var g = j.length;
          var i = f + 0.5;
          for (var h = 0; h < g; h += 2) {
              j[h] = (h >> 1) + 0.5;
              j[h + 1] = i
          }
          a._ad(j);
          _aa._ab(b, j);
          try {
              for (var h = 0; h < g; h += 2) {
                  var e = b[Math.floor(j[h]) + qrcode.width * Math.floor(j[h + 1])];
                  if (e) {
                      k._dq(h >> 1, f)
                  }
              }
          } catch (c) {
              throw "Error._ab"
          }
      }
      return k
  }
  ;
  _aa._ah = function(h, o, l, k, q, p, b, a, f, e, n, m, s, r, d, c, j, i) {
      var g = _ae._ag(l, k, q, p, b, a, f, e, n, m, s, r, d, c, j, i);
      return _aa._af(h, o, g)
  }
  ;
  function _a1(b, a) {
      this.count = b;
      this._fc = a;
      this.__defineGetter__("Count", function() {
          return this.count
      });
      this.__defineGetter__("_dm", function() {
          return this._fc
      })
  }
  function _a2(a, c, b) {
      this._bm = a;
      if (b) {
          this._do = new Array(c,b)
      } else {
          this._do = new Array(c)
      }
      this.__defineGetter__("_bo", function() {
          return this._bm
      });
      this.__defineGetter__("_dn", function() {
          return this._bm * this._fo
      });
      this.__defineGetter__("_fo", function() {
          var e = 0;
          for (var d = 0; d < this._do.length; d++) {
              e += this._do[d].length
          }
          return e
      });
      this._fb = function() {
          return this._do
      }
  }
  function _a3(k, l, h, g, f, e) {
      this._bs = k;
      this._ar = l;
      this._do = new Array(h,g,f,e);
      var j = 0;
      var b = h._bo;
      var a = h._fb();
      for (var d = 0; d < a.length; d++) {
          var c = a[d];
          j += c.Count * (c._dm + b)
      }
      this._br = j;
      this.__defineGetter__("_fd", function() {
          return this._bs
      });
      this.__defineGetter__("_as", function() {
          return this._ar
      });
      this.__defineGetter__("_dp", function() {
          return this._br
      });
      this.__defineGetter__("_cr", function() {
          return 17 + 4 * this._bs
      });
      this._aq = function() {
          var q = this._cr;
          var o = new _ac(q);
          o._bq(0, 0, 9, 9);
          o._bq(q - 8, 0, 8, 9);
          o._bq(0, q - 8, 9, 8);
          var n = this._ar.length;
          for (var m = 0; m < n; m++) {
              var p = this._ar[m] - 2;
              for (var r = 0; r < n; r++) {
                  if ((m == 0 && (r == 0 || r == n - 1)) || (m == n - 1 && r == 0)) {
                      continue
                  }
                  o._bq(this._ar[r] - 2, p, 5, 5)
              }
          }
          o._bq(6, 9, 1, q - 17);
          o._bq(9, 6, q - 17, 1);
          if (this._bs > 6) {
              o._bq(q - 11, 0, 3, 6);
              o._bq(0, q - 11, 6, 3)
          }
          return o
      }
      ;
      this._bu = function(i) {
          return this._do[i.ordinal()]
      }
  }
  _a3._bv = new Array(31892,34236,39577,42195,48118,51042,55367,58893,63784,68472,70749,76311,79154,84390,87683,92361,96236,102084,102881,110507,110734,117786,119615,126325,127568,133589,136944,141498,145311,150283,152622,158308,161089,167017);
  _a3.VERSIONS = _ay();
  _a3._av = function(a) {
      if (a < 1 || a > 40) {
          throw "bad arguments"
      }
      return _a3.VERSIONS[a - 1]
  }
  ;
  _a3._at = function(b) {
      if (b % 4 != 1) {
          throw "Error _at"
      }
      try {
          return _a3._av((b - 17) >> 2)
      } catch (a) {
          throw "Error _av"
      }
  }
  ;
  _a3._aw = function(d) {
      var b = 4294967295;
      var f = 0;
      for (var c = 0; c < _a3._bv.length; c++) {
          var a = _a3._bv[c];
          if (a == d) {
              return this._av(c + 7)
          }
          var e = _ax._gj(d, a);
          if (e < b) {
              f = c + 7;
              b = e
          }
      }
      if (b <= 3) {
          return this._av(f)
      }
      return null
  }
  ;
  function _ay() {
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_a3(8,new Array(6,24,42),new _a2(24,new _a1(2,97)),new _a2(22,new _a1(2,38),new _a1(2,39)),new _a2(22,new _a1(4,18),new _a1(2,19)),new _a2(26,new _a1(4,14),new _a1(2,15))),new _a3(9,new Array(6,26,46),new _a2(30,new _a1(2,116)),new _a2(22,new _a1(3,36),new _a1(2,37)),new _a2(20,new _a1(4,16),new _a1(4,17)),new _a2(24,new _a1(4,12),new _a1(4,13))),new _a3(10,new Array(6,28,50),new _a2(18,new _a1(2,68),new _a1(2,69)),new _a2(26,new _a1(4,43),new _a1(1,44)),new _a2(24,new _a1(6,19),new _a1(2,20)),new _a2(28,new _a1(6,15),new _a1(2,16))),new _a3(11,new Array(6,30,54),new _a2(20,new _a1(4,81)),new _a2(30,new _a1(1,50),new _a1(4,51)),new _a2(28,new _a1(4,22),new _a1(4,23)),new _a2(24,new _a1(3,12),new _a1(8,13))),new _a3(12,new Array(6,32,58),new _a2(24,new _a1(2,92),new _a1(2,93)),new _a2(22,new _a1(6,36),new _a1(2,37)),new _a2(26,new _a1(4,20),new _a1(6,21)),new _a2(28,new _a1(7,14),new _a1(4,15))),new _a3(13,new Array(6,34,62),new _a2(26,new _a1(4,107)),new _a2(22,new _a1(8,37),new 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_a1(14,25)),new _a2(30,new _a1(16,15),new _a1(14,16))),new _a3(24,new Array(6,28,54,80,106),new _a2(30,new _a1(6,117),new _a1(4,118)),new _a2(28,new _a1(6,45),new _a1(14,46)),new _a2(30,new _a1(11,24),new _a1(16,25)),new _a2(30,new _a1(30,16),new _a1(2,17))),new _a3(25,new Array(6,32,58,84,110),new _a2(26,new _a1(8,106),new _a1(4,107)),new _a2(28,new _a1(8,47),new _a1(13,48)),new _a2(30,new _a1(7,24),new _a1(22,25)),new _a2(30,new _a1(22,15),new _a1(13,16))),new _a3(26,new Array(6,30,58,86,114),new _a2(28,new _a1(10,114),new _a1(2,115)),new _a2(28,new _a1(19,46),new _a1(4,47)),new _a2(28,new _a1(28,22),new _a1(6,23)),new _a2(30,new _a1(33,16),new _a1(4,17))),new _a3(27,new Array(6,34,62,90,118),new _a2(30,new _a1(8,122),new _a1(4,123)),new _a2(28,new _a1(22,45),new _a1(3,46)),new _a2(30,new _a1(8,23),new _a1(26,24)),new _a2(30,new _a1(12,15),new _a1(28,16))),new _a3(28,new Array(6,26,50,74,98,122),new _a2(30,new _a1(3,117),new _a1(10,118)),new _a2(28,new _a1(3,45),new _a1(23,46)),new _a2(30,new _a1(4,24),new _a1(31,25)),new _a2(30,new _a1(11,15),new _a1(31,16))),new _a3(29,new Array(6,30,54,78,102,126),new _a2(30,new _a1(7,116),new _a1(7,117)),new _a2(28,new _a1(21,45),new _a1(7,46)),new _a2(30,new _a1(1,23),new _a1(37,24)),new _a2(30,new _a1(19,15),new _a1(26,16))),new _a3(30,new Array(6,26,52,78,104,130),new _a2(30,new _a1(5,115),new _a1(10,116)),new _a2(28,new _a1(19,47),new _a1(10,48)),new _a2(30,new _a1(15,24),new _a1(25,25)),new _a2(30,new _a1(23,15),new _a1(25,16))),new _a3(31,new Array(6,30,56,82,108,134),new _a2(30,new _a1(13,115),new _a1(3,116)),new _a2(28,new _a1(2,46),new _a1(29,47)),new _a2(30,new _a1(42,24),new _a1(1,25)),new _a2(30,new _a1(23,15),new _a1(28,16))),new _a3(32,new Array(6,34,60,86,112,138),new _a2(30,new _a1(17,115)),new _a2(28,new _a1(10,46),new _a1(23,47)),new _a2(30,new _a1(10,24),new _a1(35,25)),new _a2(30,new _a1(19,15),new _a1(35,16))),new _a3(33,new Array(6,30,58,86,114,142),new _a2(30,new _a1(17,115),new _a1(1,116)),new _a2(28,new _a1(14,46),new _a1(21,47)),new _a2(30,new _a1(29,24),new _a1(19,25)),new _a2(30,new _a1(11,15),new _a1(46,16))),new _a3(34,new Array(6,34,62,90,118,146),new _a2(30,new _a1(13,115),new _a1(6,116)),new _a2(28,new _a1(14,46),new _a1(23,47)),new _a2(30,new _a1(44,24),new _a1(7,25)),new _a2(30,new _a1(59,16),new _a1(1,17))),new _a3(35,new Array(6,30,54,78,102,126,150),new _a2(30,new _a1(12,121),new _a1(7,122)),new _a2(28,new _a1(12,47),new _a1(26,48)),new _a2(30,new _a1(39,24),new _a1(14,25)),new _a2(30,new _a1(22,15),new _a1(41,16))),new _a3(36,new Array(6,24,50,76,102,128,154),new _a2(30,new _a1(6,121),new _a1(14,122)),new _a2(28,new _a1(6,47),new _a1(34,48)),new _a2(30,new _a1(46,24),new _a1(10,25)),new _a2(30,new _a1(2,15),new _a1(64,16))),new _a3(37,new Array(6,28,54,80,106,132,158),new _a2(30,new _a1(17,122),new _a1(4,123)),new _a2(28,new _a1(29,46),new _a1(14,47)),new _a2(30,new _a1(49,24),new _a1(10,25)),new _a2(30,new _a1(24,15),new _a1(46,16))),new _a3(38,new Array(6,32,58,84,110,136,162),new _a2(30,new _a1(4,122),new _a1(18,123)),new _a2(28,new _a1(13,46),new _a1(32,47)),new _a2(30,new _a1(48,24),new _a1(14,25)),new _a2(30,new _a1(42,15),new _a1(32,16))),new _a3(39,new Array(6,26,54,82,110,138,166),new _a2(30,new _a1(20,117),new _a1(4,118)),new _a2(28,new _a1(40,47),new _a1(7,48)),new _a2(30,new _a1(43,24),new _a1(22,25)),new _a2(30,new _a1(10,15),new _a1(67,16))),new _a3(40,new Array(6,30,58,86,114,142,170),new _a2(30,new _a1(19,118),new _a1(6,119)),new _a2(28,new _a1(18,47),new _a1(31,48)),new _a2(30,new _a1(34,24),new _a1(34,25)),new _a2(30,new _a1(20,15),new _a1(61,16))))
  }
  function _ae(i, f, c, h, e, b, g, d, a) {
      this.a11 = i;
      this.a12 = h;
      this.a13 = g;
      this.a21 = f;
      this.a22 = e;
      this.a23 = d;
      this.a31 = c;
      this.a32 = b;
      this.a33 = a;
      this._ad = function(v) {
          var s = v.length;
          var z = this.a11;
          var w = this.a12;
          var u = this.a13;
          var q = this.a21;
          var p = this.a22;
          var o = this.a23;
          var m = this.a31;
          var k = this.a32;
          var j = this.a33;
          for (var n = 0; n < s; n += 2) {
              var t = v[n];
              var r = v[n + 1];
              var l = u * t + o * r + j;
              v[n] = (z * t + q * r + m) / l;
              v[n + 1] = (w * t + p * r + k) / l
          }
      }
      ;
      this._fp = function(m, k) {
          var q = m.length;
          for (var l = 0; l < q; l++) {
              var j = m[l];
              var p = k[l];
              var o = this.a13 * j + this.a23 * p + this.a33;
              m[l] = (this.a11 * j + this.a21 * p + this.a31) / o;
              k[l] = (this.a12 * j + this.a22 * p + this.a32) / o
          }
      }
      ;
      this._fr = function() {
          return new _ae(this.a22 * this.a33 - this.a23 * this.a32,this.a23 * this.a31 - this.a21 * this.a33,this.a21 * this.a32 - this.a22 * this.a31,this.a13 * this.a32 - this.a12 * this.a33,this.a11 * this.a33 - this.a13 * this.a31,this.a12 * this.a31 - this.a11 * this.a32,this.a12 * this.a23 - this.a13 * this.a22,this.a13 * this.a21 - this.a11 * this.a23,this.a11 * this.a22 - this.a12 * this.a21)
      }
      ;
      this.times = function(j) {
          return new _ae(this.a11 * j.a11 + this.a21 * j.a12 + this.a31 * j.a13,this.a11 * j.a21 + this.a21 * j.a22 + this.a31 * j.a23,this.a11 * j.a31 + this.a21 * j.a32 + this.a31 * j.a33,this.a12 * j.a11 + this.a22 * j.a12 + this.a32 * j.a13,this.a12 * j.a21 + this.a22 * j.a22 + this.a32 * j.a23,this.a12 * j.a31 + this.a22 * j.a32 + this.a32 * j.a33,this.a13 * j.a11 + this.a23 * j.a12 + this.a33 * j.a13,this.a13 * j.a21 + this.a23 * j.a22 + this.a33 * j.a23,this.a13 * j.a31 + this.a23 * j.a32 + this.a33 * j.a33)
      }
  }
  _ae._ag = function(p, e, o, d, n, c, m, b, h, q, l, f, a, j, i, r) {
      var g = this._be(p, e, o, d, n, c, m, b);
      var k = this._bf(h, q, l, f, a, j, i, r);
      return k.times(g)
  }
  ;
  _ae._bf = function(d, p, c, m, b, k, a, j) {
      var h = j - k;
      var f = p - m + k - j;
      if (h == 0 && f == 0) {
          return new _ae(c - d,b - c,d,m - p,k - m,p,0,0,1)
      } else {
          var q = c - b;
          var o = a - b;
          var l = d - c + b - a;
          var i = m - k;
          var e = q * h - o * i;
          var n = (l * h - o * f) / e;
          var g = (q * f - l * i) / e;
          return new _ae(c - d + n * c,a - d + g * a,d,m - p + n * m,j - p + g * j,p,n,g,1)
      }
  }
  ;
  _ae._be = function(f, h, d, g, b, e, a, c) {
      return this._bf(f, h, d, g, b, e, a, c)._fr()
  }
  ;
  function _bg(b, a) {
      this.bits = b;
      this.points = a
  }
  function Detector(a) {
      this.image = a;
      this._am = null;
      this._bi = function(m, l, c, b) {
          var d = Math.abs(b - l) > Math.abs(c - m);
          if (d) {
              var r = m;
              m = l;
              l = r;
              r = c;
              c = b;
              b = r
          }
          var j = Math.abs(c - m);
          var i = Math.abs(b - l);
          var p = -j >> 1;
          var u = l < b ? 1 : -1;
          var f = m < c ? 1 : -1;
          var e = 0;
          for (var h = m, g = l; h != c; h += f) {
              var t = d ? g : h;
              var s = d ? h : g;
              if (e == 1) {
                  if (this.image[t + s * qrcode.width]) {
                      e++
                  }
              } else {
                  if (!this.image[t + s * qrcode.width]) {
                      e++
                  }
              }
              if (e == 3) {
                  var o = h - m;
                  var n = g - l;
                  return Math.sqrt((o * o + n * n))
              }
              p += i;
              if (p > 0) {
                  if (g == b) {
                      break
                  }
                  g += u;
                  p -= j
              }
          }
          var k = c - m;
          var q = b - l;
          return Math.sqrt((k * k + q * q))
      }
      ;
      this._bh = function(i, g, h, f) {
          var b = this._bi(i, g, h, f);
          var e = 1;
          var d = i - (h - i);
          if (d < 0) {
              e = i / (i - d);
              d = 0
          } else {
              if (d >= qrcode.width) {
                  e = (qrcode.width - 1 - i) / (d - i);
                  d = qrcode.width - 1
              }
          }
          var c = Math.floor(g - (f - g) * e);
          e = 1;
          if (c < 0) {
              e = g / (g - c);
              c = 0
          } else {
              if (c >= qrcode.height) {
                  e = (qrcode.height - 1 - g) / (c - g);
                  c = qrcode.height - 1
              }
          }
          d = Math.floor(i + (d - i) * e);
          b += this._bi(i, g, d, c);
          return b - 1
      }
      ;
      this._bj = function(c, d) {
          var b = this._bh(Math.floor(c.X), Math.floor(c.Y), Math.floor(d.X), Math.floor(d.Y));
          var e = this._bh(Math.floor(d.X), Math.floor(d.Y), Math.floor(c.X), Math.floor(c.Y));
          if (isNaN(b)) {
              return e / 7
          }
          if (isNaN(e)) {
              return b / 7
          }
          return (b + e) / 14
      }
      ;
      this._bk = function(d, c, b) {
          return (this._bj(d, c) + this._bj(d, b)) / 2
      }
      ;
      this.distance = function(d, b) {
          var e = d.X - b.X;
          var c = d.Y - b.Y;
          return Math.sqrt((e * e + c * c))
      }
      ;
      this._bx = function(g, f, d, e) {
          var b = Math.round(this.distance(g, f) / e);
          var c = Math.round(this.distance(g, d) / e);
          var h = ((b + c) >> 1) + 7;
          switch (h & 3) {
          case 0:
              h++;
              break;
          case 2:
              h--;
              break;
          case 3:
              throw "Error"
          }
          return h
      }
      ;
      this._bl = function(g, f, d, j) {
          var k = Math.floor(j * g);
          var h = Math.max(0, f - k);
          var i = Math.min(qrcode.width - 1, f + k);
          if (i - h < g * 3) {
              throw "Error"
          }
          var b = Math.max(0, d - k);
          var c = Math.min(qrcode.height - 1, d + k);
          var e = new _ak(this.image,h,b,i - h,c - b,g,this._am);
          return e.find()
      }
      ;
      this.createTransform = function(l, h, k, b, g) {
          var j = g - 3.5;
          var i;
          var f;
          var e;
          var c;
          if (b != null) {
              i = b.X;
              f = b.Y;
              e = c = j - 3
          } else {
              i = (h.X - l.X) + k.X;
              f = (h.Y - l.Y) + k.Y;
              e = c = j
          }
          var d = _ae._ag(3.5, 3.5, j, 3.5, e, c, 3.5, j, l.X, l.Y, h.X, h.Y, i, f, k.X, k.Y);
          return d
      }
      ;
      this._bz = function(e, b, d) {
          var c = _aa;
          return c._af(e, d, b)
      }
      ;
      this._cd = function(q) {
          var j = q._gq;
          var h = q._gs;
          var n = q._gp;
          var d = this._bk(j, h, n);
          if (d < 1) {
              throw "Error"
          }
          var r = this._bx(j, h, n, d);
          var b = _a3._at(r);
          var k = b._cr - 7;
          var l = null;
          if (b._as.length > 0) {
              var f = h.X - j.X + n.X;
              var e = h.Y - j.Y + n.Y;
              var c = 1 - 3 / k;
              var t = Math.floor(j.X + c * (f - j.X));
              var s = Math.floor(j.Y + c * (e - j.Y));
              for (var p = 4; p <= 16; p <<= 1) {
                  l = this._bl(d, t, s, p);
                  break
              }
          }
          var g = this.createTransform(j, h, n, l, r);
          var m = this._bz(this.image, g, r);
          var o;
          if (l == null) {
              o = new Array(n,j,h)
          } else {
              o = new Array(n,j,h,l)
          }
          return new _bg(m,o)
      }
      ;
      this.detect = function() {
          var b = new _cc()._ce(this.image);
          return this._cd(b)
      }
  }
  var _ca = 21522;
  var _cb = new Array(new Array(21522,0),new Array(20773,1),new Array(24188,2),new Array(23371,3),new Array(17913,4),new Array(16590,5),new Array(20375,6),new Array(19104,7),new Array(30660,8),new Array(29427,9),new Array(32170,10),new Array(30877,11),new Array(26159,12),new Array(25368,13),new Array(27713,14),new Array(26998,15),new Array(5769,16),new Array(5054,17),new Array(7399,18),new Array(6608,19),new Array(1890,20),new Array(597,21),new Array(3340,22),new Array(2107,23),new Array(13663,24),new Array(12392,25),new Array(16177,26),new Array(14854,27),new Array(9396,28),new Array(8579,29),new Array(11994,30),new Array(11245,31));
  var _ch = new Array(0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4);
  function _ax(a) {
      this._cf = _cg.forBits((a >> 3) & 3);
      this._fe = (a & 7);
      this.__defineGetter__("_cg", function() {
          return this._cf
      });
      this.__defineGetter__("_dx", function() {
          return this._fe
      });
      this.GetHashCode = function() {
          return (this._cf.ordinal() << 3) | this._fe
      }
      ;
      this.Equals = function(c) {
          var b = c;
          return this._cf == b._cf && this._fe == b._fe
      }
  }
  _ax._gj = function(d, c) {
      d ^= c;
      return _ch[d & 15] + _ch[(_ew(d, 4) & 15)] + _ch[(_ew(d, 8) & 15)] + _ch[(_ew(d, 12) & 15)] + _ch[(_ew(d, 16) & 15)] + _ch[(_ew(d, 20) & 15)] + _ch[(_ew(d, 24) & 15)] + _ch[(_ew(d, 28) & 15)]
  }
  ;
  _ax._ci = function(a) {
      var b = _ax._cj(a);
      if (b != null) {
          return b
      }
      return _ax._cj(a ^ _ca)
  }
  ;
  _ax._cj = function(d) {
      var b = 4294967295;
      var a = 0;
      for (var c = 0; c < _cb.length; c++) {
          var g = _cb[c];
          var f = g[0];
          if (f == d) {
              return new _ax(g[1])
          }
          var e = this._gj(d, f);
          if (e < b) {
              a = g[1];
              b = e
          }
      }
      if (b <= 3) {
          return new _ax(a)
      }
      return null
  }
  ;
  function _cg(a, c, b) {
      this._ff = a;
      this.bits = c;
      this.name = b;
      this.__defineGetter__("Bits", function() {
          return this.bits
      });
      this.__defineGetter__("Name", function() {
          return this.name
      });
      this.ordinal = function() {
          return this._ff
      }
  }
  _cg.forBits = function(a) {
      if (a < 0 || a >= FOR_BITS.length) {
          throw "bad arguments"
      }
      return FOR_BITS[a]
  }
  ;
  var L = new _cg(0,1,"L");
  var M = new _cg(1,0,"M");
  var Q = new _cg(2,3,"Q");
  var H = new _cg(3,2,"H");
  var FOR_BITS = new Array(M,L,H,Q);
  function _ac(d, a) {
      if (!a) {
          a = d
      }
      if (d < 1 || a < 1) {
          throw "Both dimensions must be greater than 0"
      }
      this.width = d;
      this.height = a;
      var c = d >> 5;
      if ((d & 31) != 0) {
          c++
      }
      this.rowSize = c;
      this.bits = new Array(c * a);
      for (var b = 0; b < this.bits.length; b++) {
          this.bits[b] = 0
      }
      this.__defineGetter__("Width", function() {
          return this.width
      });
      this.__defineGetter__("Height", function() {
          return this.height
      });
      this.__defineGetter__("Dimension", function() {
          if (this.width != this.height) {
              throw "Can't call getDimension() on a non-square matrix"
          }
          return this.width
      });
      this._ds = function(e, g) {
          var f = g * this.rowSize + (e >> 5);
          return ((_ew(this.bits[f], (e & 31))) & 1) != 0
      }
      ;
      this._dq = function(e, g) {
          var f = g * this.rowSize + (e >> 5);
          this.bits[f] |= 1 << (e & 31)
      }
      ;
      this.flip = function(e, g) {
          var f = g * this.rowSize + (e >> 5);
          this.bits[f] ^= 1 << (e & 31)
      }
      ;
      this.clear = function() {
          var e = this.bits.length;
          for (var f = 0; f < e; f++) {
              this.bits[f] = 0
          }
      }
      ;
      this._bq = function(g, j, f, m) {
          if (j < 0 || g < 0) {
              throw "Left and top must be nonnegative"
          }
          if (m < 1 || f < 1) {
              throw "Height and width must be at least 1"
          }
          var l = g + f;
          var e = j + m;
          if (e > this.height || l > this.width) {
              throw "The region must fit inside the matrix"
          }
          for (var i = j; i < e; i++) {
              var h = i * this.rowSize;
              for (var k = g; k < l; k++) {
                  this.bits[h + (k >> 5)] |= 1 << (k & 31)
              }
          }
      }
  }
  function _dl(a, b) {
      this._dv = a;
      this._dw = b;
      this.__defineGetter__("_du", function() {
          return this._dv
      });
      this.__defineGetter__("Codewords", function() {
          return this._dw
      })
  }
  _dl._gn = function(c, h, r) {
      if (c.length != h._dp) {
          throw "bad arguments"
      }
      var k = h._bu(r);
      var e = 0;
      var d = k._fb();
      for (var q = 0; q < d.length; q++) {
          e += d[q].Count
      }
      var l = new Array(e);
      var n = 0;
      for (var o = 0; o < d.length; o++) {
          var f = d[o];
          for (var q = 0; q < f.Count; q++) {
              var m = f._dm;
              var s = k._bo + m;
              l[n++] = new _dl(m,new Array(s))
          }
      }
      var t = l[0]._dw.length;
      var b = l.length - 1;
      while (b >= 0) {
          var v = l[b]._dw.length;
          if (v == t) {
              break
          }
          b--
      }
      b++;
      var g = t - k._bo;
      var a = 0;
      for (var q = 0; q < g; q++) {
          for (var o = 0; o < n; o++) {
              l[o]._dw[q] = c[a++]
          }
      }
      for (var o = b; o < n; o++) {
          l[o]._dw[g] = c[a++]
      }
      var p = l[0]._dw.length;
      for (var q = g; q < p; q++) {
          for (var o = 0; o < n; o++) {
              var u = o < b ? q : q + 1;
              l[o]._dw[u] = c[a++]
          }
      }
      return l
  }
  ;
  function _cl(a) {
      var b = a.Dimension;
      if (b < 21 || (b & 3) != 1) {
          throw "Error _cl"
      }
      this._au = a;
      this._cp = null;
      this._co = null;
      this._dk = function(d, c, e) {
          return this._au._ds(d, c) ? (e << 1) | 1 : e << 1
      }
      ;
      this._cm = function() {
          if (this._co != null) {
              return this._co
          }
          var g = 0;
          for (var e = 0; e < 6; e++) {
              g = this._dk(e, 8, g)
          }
          g = this._dk(7, 8, g);
          g = this._dk(8, 8, g);
          g = this._dk(8, 7, g);
          for (var c = 5; c >= 0; c--) {
              g = this._dk(8, c, g)
          }
          this._co = _ax._ci(g);
          if (this._co != null) {
              return this._co
          }
          var f = this._au.Dimension;
          g = 0;
          var d = f - 8;
          for (var e = f - 1; e >= d; e--) {
              g = this._dk(e, 8, g)
          }
          for (var c = f - 7; c < f; c++) {
              g = this._dk(8, c, g)
          }
          this._co = _ax._ci(g);
          if (this._co != null) {
              return this._co
          }
          throw "Error _cm"
      }
      ;
      this._cq = function() {
          if (this._cp != null) {
              return this._cp
          }
          var h = this._au.Dimension;
          var f = (h - 17) >> 2;
          if (f <= 6) {
              return _a3._av(f)
          }
          var g = 0;
          var e = h - 11;
          for (var c = 5; c >= 0; c--) {
              for (var d = h - 9; d >= e; d--) {
                  g = this._dk(d, c, g)
              }
          }
          this._cp = _a3._aw(g);
          if (this._cp != null && this._cp._cr == h) {
              return this._cp
          }
          g = 0;
          for (var d = 5; d >= 0; d--) {
              for (var c = h - 9; c >= e; c--) {
                  g = this._dk(d, c, g)
              }
          }
          this._cp = _a3._aw(g);
          if (this._cp != null && this._cp._cr == h) {
              return this._cp
          }
          throw "Error _cq"
      }
      ;
      this._gk = function() {
          var q = this._cm();
          var o = this._cq();
          var c = _dx._gl(q._dx);
          var f = this._au.Dimension;
          c._dj(this._au, f);
          var k = o._aq();
          var n = true;
          var r = new Array(o._dp);
          var m = 0;
          var p = 0;
          var h = 0;
          for (var e = f - 1; e > 0; e -= 2) {
              if (e == 6) {
                  e--
              }
              for (var l = 0; l < f; l++) {
                  var g = n ? f - 1 - l : l;
                  for (var d = 0; d < 2; d++) {
                      if (!k._ds(e - d, g)) {
                          h++;
                          p <<= 1;
                          if (this._au._ds(e - d, g)) {
                              p |= 1
                          }
                          if (h == 8) {
                              r[m++] = p;
                              h = 0;
                              p = 0
                          }
                      }
                  }
              }
              n ^= true
          }
          if (m != o._dp) {
              throw "Error _gk"
          }
          return r
      }
  }
  var _dx = {};
  _dx._gl = function(a) {
      if (a < 0 || a > 7) {
          throw "bad arguments"
      }
      return _dx._dy[a]
  }
  ;
  function _fg() {
      this._dj = function(c, d) {
          for (var b = 0; b < d; b++) {
              for (var a = 0; a < d; a++) {
                  if (this._fw(b, a)) {
                      c.flip(a, b)
                  }
              }
          }
      }
      ;
      this._fw = function(b, a) {
          return ((b + a) & 1) == 0
      }
  }
  function _fh() {
      this._dj = function(c, d) {
          for (var b = 0; b < d; b++) {
              for (var a = 0; a < d; a++) {
                  if (this._fw(b, a)) {
                      c.flip(a, b)
                  }
              }
          }
      }
      ;
      this._fw = function(b, a) {
          return (b & 1) == 0
      }
  }
  function _fi() {
      this._dj = function(c, d) {
          for (var b = 0; b < d; b++) {
              for (var a = 0; a < d; a++) {
                  if (this._fw(b, a)) {
                      c.flip(a, b)
                  }
              }
          }
      }
      ;
      this._fw = function(b, a) {
          return a % 3 == 0
      }
  }
  function _fj() {
      this._dj = function(c, d) {
          for (var b = 0; b < d; b++) {
              for (var a = 0; a < d; a++) {
                  if (this._fw(b, a)) {
                      c.flip(a, b)
                  }
              }
          }
      }
      ;
      this._fw = function(b, a) {
          return (b + a) % 3 == 0
      }
  }
  function _fk() {
      this._dj = function(c, d) {
          for (var b = 0; b < d; b++) {
              for (var a = 0; a < d; a++) {
                  if (this._fw(b, a)) {
                      c.flip(a, b)
                  }
              }
          }
      }
      ;
      this._fw = function(b, a) {
          return (((_ew(b, 1)) + (a / 3)) & 1) == 0
      }
  }
  function _fl() {
      this._dj = function(c, d) {
          for (var b = 0; b < d; b++) {
              for (var a = 0; a < d; a++) {
                  if (this._fw(b, a)) {
                      c.flip(a, b)
                  }
              }
          }
      }
      ;
      this._fw = function(c, b) {
          var a = c * b;
          return (a & 1) + (a % 3) == 0
      }
  }
  function _fm() {
      this._dj = function(c, d) {
          for (var b = 0; b < d; b++) {
              for (var a = 0; a < d; a++) {
                  if (this._fw(b, a)) {
                      c.flip(a, b)
                  }
              }
          }
      }
      ;
      this._fw = function(c, b) {
          var a = c * b;
          return (((a & 1) + (a % 3)) & 1) == 0
      }
  }
  function _fn() {
      this._dj = function(c, d) {
          for (var b = 0; b < d; b++) {
              for (var a = 0; a < d; a++) {
                  if (this._fw(b, a)) {
                      c.flip(a, b)
                  }
              }
          }
      }
      ;
      this._fw = function(b, a) {
          return ((((b + a) & 1) + ((b * a) % 3)) & 1) == 0
      }
  }
  _dx._dy = new Array(new _fg(),new _fh(),new _fi(),new _fj(),new _fk(),new _fl(),new _fm(),new _fn());
  function _db(a) {
      this._fa = a;
      this.decode = function(j, f) {
          var c = new _bp(this._fa,j);
          var p = new Array(f);
          for (var g = 0; g < p.length; g++) {
              p[g] = 0
          }
          var m = false;
          var d = true;
          for (var g = 0; g < f; g++) {
              var q = c.evaluateAt(this._fa.exp(m ? g + 1 : g));
              p[p.length - 1 - g] = q;
              if (q != 0) {
                  d = false
              }
          }
          if (d) {
              return
          }
          var b = new _bp(this._fa,p);
          var l = this._eb(this._fa._ba(f, 1), b, f);
          var o = l[0];
          var n = l[1];
          var k = this._ey(o);
          var e = this._di(n, k, m);
          for (var g = 0; g < k.length; g++) {
              var h = j.length - 1 - this._fa.log(k[g]);
              if (h < 0) {
                  throw "ReedSolomonException Bad error location"
              }
              j[h] = _az._bd(j[h], e[g])
          }
      }
      ;
      this._eb = function(z, y, f) {
          if (z._ec < y._ec) {
              var w = z;
              z = y;
              y = w
          }
          var B = z;
          var k = y;
          var o = this._fa.One;
          var j = this._fa.Zero;
          var e = this._fa.Zero;
          var i = this._fa.One;
          while (k._ec >= Math.floor(f / 2)) {
              var x = B;
              var g = o;
              var v = e;
              B = k;
              o = j;
              e = i;
              if (B.Zero) {
                  throw "r_{i-1} was zero"
              }
              k = x;
              var m = this._fa.Zero;
              var p = B._ex(B._ec);
              var h = this._fa.inverse(p);
              while (k._ec >= B._ec && !k.Zero) {
                  var c = k._ec - B._ec;
                  var A = this._fa.multiply(k._ex(k._ec), h);
                  m = m._bd(this._fa._ba(c, A));
                  k = k._bd(B._dc(c, A))
              }
              j = m.multiply1(o)._bd(g);
              i = m.multiply1(e)._bd(v)
          }
          var u = i._ex(0);
          if (u == 0) {
              throw "ReedSolomonException sigmaTilde(0) was zero"
          }
          var d = this._fa.inverse(u);
          var n = i.multiply2(d);
          var l = k.multiply2(d);
          return new Array(n,l)
      }
      ;
      this._ey = function(f) {
          var g = f._ec;
          if (g == 1) {
              return new Array(f._ex(1))
          }
          var b = new Array(g);
          var d = 0;
          for (var c = 1; c < 256 && d < g; c++) {
              if (f.evaluateAt(c) == 0) {
                  b[d] = this._fa.inverse(c);
                  d++
              }
          }
          if (d != g) {
              throw "Error locator degree does not match number of roots"
          }
          return b
      }
      ;
      this._di = function(f, h, g) {
          var k = h.length;
          var l = new Array(k);
          for (var e = 0; e < k; e++) {
              var b = this._fa.inverse(h[e]);
              var c = 1;
              for (var d = 0; d < k; d++) {
                  if (e != d) {
                      c = this._fa.multiply(c, _az._bd(1, this._fa.multiply(h[d], b)))
                  }
              }
              l[e] = this._fa.multiply(f.evaluateAt(b), this._fa.inverse(c));
              if (g) {
                  l[e] = this._fa.multiply(l[e], b)
              }
          }
          return l
      }
  }
  function _bp(f, e) {
      if (e == null || e.length == 0) {
          throw "bad arguments"
      }
      this._fa = f;
      var c = e.length;
      if (c > 1 && e[0] == 0) {
          var d = 1;
          while (d < c && e[d] == 0) {
              d++
          }
          if (d == c) {
              this._dd = f.Zero._dd
          } else {
              this._dd = new Array(c - d);
              for (var b = 0; b < this._dd.length; b++) {
                  this._dd[b] = 0
              }
              for (var a = 0; a < this._dd.length; a++) {
                  this._dd[a] = e[d + a]
              }
          }
      } else {
          this._dd = e
      }
      this.__defineGetter__("Zero", function() {
          return this._dd[0] == 0
      });
      this.__defineGetter__("_ec", function() {
          return this._dd.length - 1
      });
      this.__defineGetter__("Coefficients", function() {
          return this._dd
      });
      this._ex = function(g) {
          return this._dd[this._dd.length - 1 - g]
      }
      ;
      this.evaluateAt = function(h) {
          if (h == 0) {
              return this._ex(0)
          }
          var l = this._dd.length;
          if (h == 1) {
              var g = 0;
              for (var k = 0; k < l; k++) {
                  g = _az._bd(g, this._dd[k])
              }
              return g
          }
          var j = this._dd[0];
          for (var k = 1; k < l; k++) {
              j = _az._bd(this._fa.multiply(h, j), this._dd[k])
          }
          return j
      }
      ;
      this._bd = function(g) {
          if (this._fa != g._fa) {
              throw "GF256Polys do not have same _az _fa"
          }
          if (this.Zero) {
              return g
          }
          if (g.Zero) {
              return this
          }
          var o = this._dd;
          var n = g._dd;
          if (o.length > n.length) {
              var j = o;
              o = n;
              n = j
          }
          var h = new Array(n.length);
          var k = n.length - o.length;
          for (var m = 0; m < k; m++) {
              h[m] = n[m]
          }
          for (var l = k; l < n.length; l++) {
              h[l] = _az._bd(o[l - k], n[l])
          }
          return new _bp(f,h)
      }
      ;
      this.multiply1 = function(o) {
          if (this._fa != o._fa) {
              throw "GF256Polys do not have same _az _fa"
          }
          if (this.Zero || o.Zero) {
              return this._fa.Zero
          }
          var q = this._dd;
          var g = q.length;
          var l = o._dd;
          var n = l.length;
          var p = new Array(g + n - 1);
          for (var m = 0; m < g; m++) {
              var h = q[m];
              for (var k = 0; k < n; k++) {
                  p[m + k] = _az._bd(p[m + k], this._fa.multiply(h, l[k]))
              }
          }
          return new _bp(this._fa,p)
      }
      ;
      this.multiply2 = function(g) {
          if (g == 0) {
              return this._fa.Zero
          }
          if (g == 1) {
              return this
          }
          var j = this._dd.length;
          var k = new Array(j);
          for (var h = 0; h < j; h++) {
              k[h] = this._fa.multiply(this._dd[h], g)
          }
          return new _bp(this._fa,k)
      }
      ;
      this._dc = function(l, g) {
          if (l < 0) {
              throw "bad arguments"
          }
          if (g == 0) {
              return this._fa.Zero
          }
          var j = this._dd.length;
          var k = new Array(j + l);
          for (var h = 0; h < k.length; h++) {
              k[h] = 0
          }
          for (var h = 0; h < j; h++) {
              k[h] = this._fa.multiply(this._dd[h], g)
          }
          return new _bp(this._fa,k)
      }
      ;
      this.divide = function(l) {
          if (this._fa != l._fa) {
              throw "GF256Polys do not have same _az _fa"
          }
          if (l.Zero) {
              throw "Divide by 0"
          }
          var j = this._fa.Zero;
          var o = this;
          var g = l._ex(l._ec);
          var n = this._fa.inverse(g);
          while (o._ec >= l._ec && !o.Zero) {
              var m = o._ec - l._ec;
              var h = this._fa.multiply(o._ex(o._ec), n);
              var i = l._dc(m, h);
              var k = this._fa._ba(m, h);
              j = j._bd(k);
              o = o._bd(i)
          }
          return new Array(j,o)
      }
  }
  function _az(b) {
      this._gh = new Array(256);
      this._gi = new Array(256);
      var a = 1;
      for (var e = 0; e < 256; e++) {
          this._gh[e] = a;
          a <<= 1;
          if (a >= 256) {
              a ^= b
          }
      }
      for (var e = 0; e < 255; e++) {
          this._gi[this._gh[e]] = e
      }
      var d = new Array(1);
      d[0] = 0;
      this.zero = new _bp(this,new Array(d));
      var c = new Array(1);
      c[0] = 1;
      this.one = new _bp(this,new Array(c));
      this.__defineGetter__("Zero", function() {
          return this.zero
      });
      this.__defineGetter__("One", function() {
          return this.one
      });
      this._ba = function(j, f) {
          if (j < 0) {
              throw "bad arguments"
          }
          if (f == 0) {
              return this.zero
          }
          var h = new Array(j + 1);
          for (var g = 0; g < h.length; g++) {
              h[g] = 0
          }
          h[0] = f;
          return new _bp(this,h)
      }
      ;
      this.exp = function(f) {
          return this._gh[f]
      }
      ;
      this.log = function(f) {
          if (f == 0) {
              throw "bad arguments"
          }
          return this._gi[f]
      }
      ;
      this.inverse = function(f) {
          if (f == 0) {
              throw "System.ArithmeticException"
          }
          return this._gh[255 - this._gi[f]]
      }
      ;
      this.multiply = function(g, f) {
          if (g == 0 || f == 0) {
              return 0
          }
          if (g == 1) {
              return f
          }
          if (f == 1) {
              return g
          }
          return this._gh[(this._gi[g] + this._gi[f]) % 255]
      }
  }
  _az._bb = new _az(285);
  _az._bc = new _az(301);
  _az._bd = function(d, c) {
      return d ^ c
  }
  ;
  var Decoder = {};
  Decoder.rsDecoder = new _db(_az._bb);
  Decoder.correctErrors = function(g, b) {
      var d = g.length;
      var f = new Array(d);
      for (var e = 0; e < d; e++) {
          f[e] = g[e] & 255
      }
      var a = g.length - b;
      try {
          Decoder.rsDecoder.decode(f, a)
      } catch (c) {
          throw c
      }
      for (var e = 0; e < b; e++) {
          g[e] = f[e]
      }
  }
  ;
  Decoder.decode = function(q) {
      var b = new _cl(q);
      var o = b._cq();
      var c = b._cm()._cg;
      var p = b._gk();
      var a = _dl._gn(p, o, c);
      var f = 0;
      for (var k = 0; k < a.length; k++) {
          f += a[k]._du
      }
      var e = new Array(f);
      var n = 0;
      for (var h = 0; h < a.length; h++) {
          var m = a[h];
          var d = m.Codewords;
          var g = m._du;
          Decoder.correctErrors(d, g);
          for (var k = 0; k < g; k++) {
              e[n++] = d[k]
          }
      }
      var l = new QRCodeDataBlockReader(e,o._fd,c.Bits);
      return l
  }
  ;
  var qrcode = {};
  qrcode.imagedata = null;
  qrcode.width = 0;
  qrcode.height = 0;
  qrcode.qrCodeSymbol = null;
  qrcode.debug = false;
  qrcode.maxImgSize = 1024 * 1024;
  qrcode._eo = [[10, 9, 8, 8], [12, 11, 16, 10], [14, 13, 16, 12]];
  qrcode.callback = null;
  qrcode.vidSuccess = function(a) {
      qrcode.localstream = a;
      if (qrcode.webkit) {
          qrcode.video.src = window.webkitURL.createObjectURL(a)
      } else {
          if (qrcode.moz) {
              qrcode.video.mozSrcObject = a;
              qrcode.video.play()
          } else {
              qrcode.video.src = a
          }
      }
      qrcode.gUM = true;
      qrcode.canvas_qr2 = document.createElement("canvas");
      qrcode.canvas_qr2.id = "qr-canvas";
      qrcode.qrcontext2 = qrcode.canvas_qr2.getContext("2d");
      qrcode.canvas_qr2.width = qrcode.video.videoWidth;
      qrcode.canvas_qr2.height = qrcode.video.videoHeight;
      setTimeout(qrcode.captureToCanvas, 500)
  }
  ;
  qrcode.vidError = function(a) {
      qrcode.gUM = false;
      return
  }
  ;
  qrcode.captureToCanvas = function() {
      if (qrcode.gUM) {
          try {
              if (qrcode.video.videoWidth == 0) {
                  setTimeout(qrcode.captureToCanvas, 500);
                  return
              } else {
                  qrcode.canvas_qr2.width = qrcode.video.videoWidth;
                  qrcode.canvas_qr2.height = qrcode.video.videoHeight
              }
              qrcode.qrcontext2.drawImage(qrcode.video, 0, 0);
              try {
                  qrcode.decode()
              } catch (a) {
                  console.log(a);
                  setTimeout(qrcode.captureToCanvas, 500)
              }
          } catch (a) {
              console.log(a);
              setTimeout(qrcode.captureToCanvas, 500)
          }
      }
  }
  ;
  qrcode.setWebcam = function(c) {
      var d = navigator;
      qrcode.video = document.getElementById(c);
      var a = true;
      if (navigator.mediaDevices && navigator.mediaDevices.enumerateDevices) {
          try {
              navigator.mediaDevices.enumerateDevices().then(function(e) {
                  e.forEach(function(f) {
                      console.log("deb1");
                      if (f.kind === "videoinput") {
                          if (f.label.toLowerCase().search("back") > -1) {
                              a = [{
                                  sourceId: f.deviceId
                              }]
                          }
                      }
                      console.log(f.kind + ": " + f.label + " id = " + f.deviceId)
                  })
              })
          } catch (b) {
              console.log(b)
          }
      } else {
          console.log("no navigator.mediaDevices.enumerateDevices")
      }
      if (d.getUserMedia) {
          d.getUserMedia({
              video: a,
              audio: false
          }, qrcode.vidSuccess, qrcode.vidError)
      } else {
          if (d.webkitGetUserMedia) {
              qrcode.webkit = true;
              d.webkitGetUserMedia({
                  video: a,
                  audio: false
              }, qrcode.vidSuccess, qrcode.vidError)
          } else {
              if (d.mozGetUserMedia) {
                  qrcode.moz = true;
                  d.mozGetUserMedia({
                      video: a,
                      audio: false
                  }, qrcode.vidSuccess, qrcode.vidError)
              }
          }
      }
  }
  ;
  qrcode.decode = function(d) {
      if (arguments.length == 0) {
          if (qrcode.canvas_qr2) {
              var b = qrcode.canvas_qr2;
              var a = qrcode.qrcontext2
          } else {
              var b = document.getElementById("qr-canvas");
              var a = b.getContext("2d")
          }
          qrcode.width = b.width;
          qrcode.height = b.height;
          qrcode.imagedata = a.getImageData(0, 0, qrcode.width, qrcode.height);
          qrcode.result = qrcode.process(a);
          if (qrcode.callback != null) {
              qrcode.callback(qrcode.result)
          }
          return qrcode.result
      } else {
          var c = new Image();
          c.crossOrigin = "Anonymous";
          c.onload = function() {
              var g = document.getElementById("out-canvas");
              if (g != null) {
                  var j = g.getContext("2d");
                  j.clearRect(0, 0, 320, 240);
                  j.drawImage(c, 0, 0, 320, 240)
              }
              var i = document.createElement("canvas");
              var h = i.getContext("2d");
              var f = c.height;
              var l = c.width;
              if (c.width * c.height > qrcode.maxImgSize) {
                  var k = c.width / c.height;
                  f = Math.sqrt(qrcode.maxImgSize / k);
                  l = k * f
              }
              i.width = l;
              i.height = f;
              h.drawImage(c, 0, 0, i.width, i.height);
              qrcode.width = i.width;
              qrcode.height = i.height;
              try {
                  qrcode.imagedata = h.getImageData(0, 0, i.width, i.height)
              } catch (m) {
                  qrcode.result = "Cross domain image reading not supported in your browser! Save it to your computer then drag and drop the file!";
                  if (qrcode.callback != null) {
                      qrcode.callback(qrcode.result)
                  }
                  return
              }
              try {
                  qrcode.result = qrcode.process(h)
              } catch (m) {
                  console.log(m);
                  qrcode.result = "error decoding QR Code"
              }
              if (qrcode.callback != null) {
                  qrcode.callback(qrcode.result)
              }
          }
          ;
          c.onerror = function() {
              if (qrcode.callback != null) {
                  qrcode.callback("Failed to load the image")
              }
          }
          ;
          c.src = d
      }
  }
  ;
  qrcode.isUrl = function(a) {
      var b = /(ftp|http|https):\/\/(\w+:{0,1}\w*@)?(\S+)(:[0-9]+)?(\/|\/([\w#!:.?+=&%@!\-\/]))?/;
      return b.test(a)
  }
  ;
  qrcode.decode_url = function(b) {
      var d = "";
      try {
          d = escape(b)
      } catch (c) {
          console.log(c);
          d = b
      }
      var a = "";
      try {
          a = decodeURIComponent(d)
      } catch (c) {
          console.log(c);
          a = d
      }
      return a
  }
  ;
  qrcode.decode_utf8 = function(a) {
      if (qrcode.isUrl(a)) {
          return qrcode.decode_url(a)
      } else {
          return a
      }
  }
  ;
  qrcode.process = function(q) {
      var a = new Date().getTime();
      var c = qrcode.grayScaleToBitmap(qrcode.grayscale());
      if (qrcode.debug) {
          for (var m = 0; m < qrcode.height; m++) {
              for (var n = 0; n < qrcode.width; n++) {
                  var o = (n * 4) + (m * qrcode.width * 4);
                  qrcode.imagedata.data[o] = c[n + m * qrcode.width] ? 0 : 0;
                  qrcode.imagedata.data[o + 1] = c[n + m * qrcode.width] ? 0 : 0;
                  qrcode.imagedata.data[o + 2] = c[n + m * qrcode.width] ? 255 : 0
              }
          }
          q.putImageData(qrcode.imagedata, 0, 0)
      }
      var h = new Detector(c);
      var p = h.detect();
      if (qrcode.debug) {
          for (var m = 0; m < p.bits.Height; m++) {
              for (var n = 0; n < p.bits.Width; n++) {
                  var o = (n * 4 * 2) + (m * 2 * qrcode.width * 4);
                  qrcode.imagedata.data[o] = p.bits._ds(n, m) ? 0 : 0;
                  qrcode.imagedata.data[o + 1] = p.bits._ds(n, m) ? 0 : 0;
                  qrcode.imagedata.data[o + 2] = p.bits._ds(n, m) ? 255 : 0
              }
          }
          q.putImageData(qrcode.imagedata, 0, 0)
      }
      var k = Decoder.decode(p.bits);
      var g = k.DataByte;
      var l = "";
      for (var f = 0; f < g.length; f++) {
          for (var e = 0; e < g[f].length; e++) {
              l += String.fromCharCode(g[f][e])
          }
      }
      var d = new Date().getTime();
      var b = d - a;
      console.log(b);
      return qrcode.decode_utf8(l)
  }
  ;
  qrcode.getPixel = function(b, d) {
      if (qrcode.width < b) {
          throw "point error"
      }
      if (qrcode.height < d) {
          throw "point error"
      }
      var a = (b * 4) + (d * qrcode.width * 4);
      var c = (qrcode.imagedata.data[a] * 33 + qrcode.imagedata.data[a + 1] * 34 + qrcode.imagedata.data[a + 2] * 33) / 100;
      return c
  }
  ;
  qrcode.binarize = function(d) {
      var c = new Array(qrcode.width * qrcode.height);
      for (var e = 0; e < qrcode.height; e++) {
          for (var b = 0; b < qrcode.width; b++) {
              var a = qrcode.getPixel(b, e);
              c[b + e * qrcode.width] = a <= d ? true : false
          }
      }
      return c
  }
  ;
  qrcode._em = function(d) {
      var c = 4;
      var k = Math.floor(qrcode.width / c);
      var j = Math.floor(qrcode.height / c);
      var f = new Array(c);
      for (var g = 0; g < c; g++) {
          f[g] = new Array(c);
          for (var e = 0; e < c; e++) {
              f[g][e] = new Array(0,0)
          }
      }
      for (var o = 0; o < c; o++) {
          for (var a = 0; a < c; a++) {
              f[a][o][0] = 255;
              for (var l = 0; l < j; l++) {
                  for (var n = 0; n < k; n++) {
                      var h = d[k * a + n + (j * o + l) * qrcode.width];
                      if (h < f[a][o][0]) {
                          f[a][o][0] = h
                      }
                      if (h > f[a][o][1]) {
                          f[a][o][1] = h
                      }
                  }
              }
          }
      }
      var m = new Array(c);
      for (var b = 0; b < c; b++) {
          m[b] = new Array(c)
      }
      for (var o = 0; o < c; o++) {
          for (var a = 0; a < c; a++) {
              m[a][o] = Math.floor((f[a][o][0] + f[a][o][1]) / 2)
          }
      }
      return m
  }
  ;
  qrcode.grayScaleToBitmap = function(f) {
      var k = qrcode._em(f);
      var b = k.length;
      var e = Math.floor(qrcode.width / b);
      var d = Math.floor(qrcode.height / b);
      var h = new ArrayBuffer(qrcode.width * qrcode.height);
      var c = new Uint8Array(h);
      for (var j = 0; j < b; j++) {
          for (var a = 0; a < b; a++) {
              for (var g = 0; g < d; g++) {
                  for (var i = 0; i < e; i++) {
                      c[e * a + i + (d * j + g) * qrcode.width] = (f[e * a + i + (d * j + g) * qrcode.width] < k[a][j]) ? true : false
                  }
              }
          }
      }
      return c
  }
  ;
  qrcode.grayscale = function() {
      var e = new ArrayBuffer(qrcode.width * qrcode.height);
      var c = new Uint8Array(e);
      for (var d = 0; d < qrcode.height; d++) {
          for (var b = 0; b < qrcode.width; b++) {
              var a = qrcode.getPixel(b, d);
              c[b + d * qrcode.width] = a
          }
      }
      return c
  }
  ;
  function _ew(a, b) {
      if (a >= 0) {
          return a >> b
      } else {
          return (a >> b) + (2 << ~b)
      }
  }
  var _gf = 3;
  var _eh = 57;
  var _el = 8;
  var _eg = 2;
  qrcode._er = function(c) {
      function b(m, k) {
          var n = m.X - k.X;
          var l = m.Y - k.Y;
          return Math.sqrt((n * n + l * l))
      }
      function d(k, o, n) {
          var m = o.x;
          var l = o.y;
          return ((n.x - m) * (k.y - l)) - ((n.y - l) * (k.x - m))
      }
      var i = b(c[0], c[1]);
      var f = b(c[1], c[2]);
      var e = b(c[0], c[2]);
      var a, j, h;
      if (f >= i && f >= e) {
          j = c[0];
          a = c[1];
          h = c[2]
      } else {
          if (e >= f && e >= i) {
              j = c[1];
              a = c[0];
              h = c[2]
          } else {
              j = c[2];
              a = c[0];
              h = c[1]
          }
      }
      if (d(a, j, h) < 0) {
          var g = a;
          a = h;
          h = g
      }
      c[0] = a;
      c[1] = j;
      c[2] = h
  }
  ;
  function _cz(c, a, b) {
      this.x = c;
      this.y = a;
      this.count = 1;
      this._aj = b;
      this.__defineGetter__("_ei", function() {
          return this._aj
      });
      this.__defineGetter__("Count", function() {
          return this.count
      });
      this.__defineGetter__("X", function() {
          return this.x
      });
      this.__defineGetter__("Y", function() {
          return this.y
      });
      this._ek = function() {
          this.count++
      }
      ;
      this._ev = function(f, e, d) {
          if (Math.abs(e - this.y) <= f && Math.abs(d - this.x) <= f) {
              var g = Math.abs(f - this._aj);
              return g <= 1 || g / this._aj <= 1
          }
          return false
      }
  }
  function _es(a) {
      this._go = a[0];
      this._gu = a[1];
      this._gr = a[2];
      this.__defineGetter__("_gp", function() {
          return this._go
      });
      this.__defineGetter__("_gq", function() {
          return this._gu
      });
      this.__defineGetter__("_gs", function() {
          return this._gr
      })
  }
  function _cc() {
      this.image = null;
      this._cv = [];
      this._ge = false;
      this._al = new Array(0,0,0,0,0);
      this._am = null;
      this.__defineGetter__("_da", function() {
          this._al[0] = 0;
          this._al[1] = 0;
          this._al[2] = 0;
          this._al[3] = 0;
          this._al[4] = 0;
          return this._al
      });
      this._ao = function(f) {
          var b = 0;
          for (var d = 0; d < 5; d++) {
              var e = f[d];
              if (e == 0) {
                  return false
              }
              b += e
          }
          if (b < 7) {
              return false
          }
          var c = Math.floor((b << _el) / 7);
          var a = Math.floor(c / 2);
          return Math.abs(c - (f[0] << _el)) < a && Math.abs(c - (f[1] << _el)) < a && Math.abs(3 * c - (f[2] << _el)) < 3 * a && Math.abs(c - (f[3] << _el)) < a && Math.abs(c - (f[4] << _el)) < a
      }
      ;
      this._an = function(b, a) {
          return (a - b[4] - b[3]) - b[2] / 2
      }
      ;
      this._ap = function(a, j, d, g) {
          var c = this.image;
          var h = qrcode.height;
          var b = this._da;
          var f = a;
          while (f >= 0 && c[j + f * qrcode.width]) {
              b[2]++;
              f--
          }
          if (f < 0) {
              return NaN
          }
          while (f >= 0 && !c[j + f * qrcode.width] && b[1] <= d) {
              b[1]++;
              f--
          }
          if (f < 0 || b[1] > d) {
              return NaN
          }
          while (f >= 0 && c[j + f * qrcode.width] && b[0] <= d) {
              b[0]++;
              f--
          }
          if (b[0] > d) {
              return NaN
          }
          f = a + 1;
          while (f < h && c[j + f * qrcode.width]) {
              b[2]++;
              f++
          }
          if (f == h) {
              return NaN
          }
          while (f < h && !c[j + f * qrcode.width] && b[3] < d) {
              b[3]++;
              f++
          }
          if (f == h || b[3] >= d) {
              return NaN
          }
          while (f < h && c[j + f * qrcode.width] && b[4] < d) {
              b[4]++;
              f++
          }
          if (b[4] >= d) {
              return NaN
          }
          var e = b[0] + b[1] + b[2] + b[3] + b[4];
          if (5 * Math.abs(e - g) >= 2 * g) {
              return NaN
          }
          return this._ao(b) ? this._an(b, f) : NaN
      }
      ;
      this._ej = function(b, a, e, h) {
          var d = this.image;
          var i = qrcode.width;
          var c = this._da;
          var g = b;
          while (g >= 0 && d[g + a * qrcode.width]) {
              c[2]++;
              g--
          }
          if (g < 0) {
              return NaN
          }
          while (g >= 0 && !d[g + a * qrcode.width] && c[1] <= e) {
              c[1]++;
              g--
          }
          if (g < 0 || c[1] > e) {
              return NaN
          }
          while (g >= 0 && d[g + a * qrcode.width] && c[0] <= e) {
              c[0]++;
              g--
          }
          if (c[0] > e) {
              return NaN
          }
          g = b + 1;
          while (g < i && d[g + a * qrcode.width]) {
              c[2]++;
              g++
          }
          if (g == i) {
              return NaN
          }
          while (g < i && !d[g + a * qrcode.width] && c[3] < e) {
              c[3]++;
              g++
          }
          if (g == i || c[3] >= e) {
              return NaN
          }
          while (g < i && d[g + a * qrcode.width] && c[4] < e) {
              c[4]++;
              g++
          }
          if (c[4] >= e) {
              return NaN
          }
          var f = c[0] + c[1] + c[2] + c[3] + c[4];
          if (5 * Math.abs(f - h) >= h) {
              return NaN
          }
          return this._ao(c) ? this._an(c, g) : NaN
      }
      ;
      this._cu = function(c, f, e) {
          var d = c[0] + c[1] + c[2] + c[3] + c[4];
          var n = this._an(c, e);
          var b = this._ap(f, Math.floor(n), c[2], d);
          if (!isNaN(b)) {
              n = this._ej(Math.floor(n), Math.floor(b), c[2], d);
              if (!isNaN(n)) {
                  var l = d / 7;
                  var m = false;
                  var h = this._cv.length;
                  for (var g = 0; g < h; g++) {
                      var a = this._cv[g];
                      if (a._ev(l, b, n)) {
                          a._ek();
                          m = true;
                          break
                      }
                  }
                  if (!m) {
                      var k = new _cz(n,b,l);
                      this._cv.push(k);
                      if (this._am != null) {
                          this._am._ep(k)
                      }
                  }
                  return true
              }
          }
          return false
      }
      ;
      this._ee = function() {
          var h = this._cv.length;
          if (h < 3) {
              throw "Couldn't find enough finder patterns (found " + h + ")"
          }
          if (h > 3) {
              var b = 0;
              var j = 0;
              for (var d = 0; d < h; d++) {
                  var g = this._cv[d]._ei;
                  b += g;
                  j += (g * g)
              }
              var a = b / h;
              this._cv.sort(function(m, l) {
                  var k = Math.abs(l._ei - a);
                  var i = Math.abs(m._ei - a);
                  if (k < i) {
                      return (-1)
                  } else {
                      if (k == i) {
                          return 0
                      } else {
                          return 1
                      }
                  }
              });
              var e = Math.sqrt(j / h - a * a);
              var c = Math.max(0.2 * a, e);
              for (var d = this._cv.length - 1; d >= 0; d--) {
                  var f = this._cv[d];
                  if (Math.abs(f._ei - a) > c) {
                      this._cv.splice(d, 1)
                  }
              }
          }
          if (this._cv.length > 3) {
              this._cv.sort(function(k, i) {
                  if (k.count > i.count) {
                      return -1
                  }
                  if (k.count < i.count) {
                      return 1
                  }
                  return 0
              })
          }
          return new Array(this._cv[0],this._cv[1],this._cv[2])
      }
      ;
      this._eq = function() {
          var b = this._cv.length;
          if (b <= 1) {
              return 0
          }
          var c = null;
          for (var d = 0; d < b; d++) {
              var a = this._cv[d];
              if (a.Count >= _eg) {
                  if (c == null) {
                      c = a
                  } else {
                      this._ge = true;
                      return Math.floor((Math.abs(c.X - a.X) - Math.abs(c.Y - a.Y)) / 2)
                  }
              }
          }
          return 0
      }
      ;
      this._cx = function() {
          var g = 0;
          var c = 0;
          var a = this._cv.length;
          for (var d = 0; d < a; d++) {
              var f = this._cv[d];
              if (f.Count >= _eg) {
                  g++;
                  c += f._ei
              }
          }
          if (g < 3) {
              return false
          }
          var e = c / a;
          var b = 0;
          for (var d = 0; d < a; d++) {
              f = this._cv[d];
              b += Math.abs(f._ei - e)
          }
          return b <= 0.05 * c
      }
      ;
      this._ce = function(e) {
          var o = false;
          this.image = e;
          var n = qrcode.height;
          var k = qrcode.width;
          var a = Math.floor((3 * n) / (4 * _eh));
          if (a < _gf || o) {
              a = _gf
          }
          var g = false;
          var d = new Array(5);
          for (var h = a - 1; h < n && !g; h += a) {
              d[0] = 0;
              d[1] = 0;
              d[2] = 0;
              d[3] = 0;
              d[4] = 0;
              var b = 0;
              for (var f = 0; f < k; f++) {
                  if (e[f + h * qrcode.width]) {
                      if ((b & 1) == 1) {
                          b++
                      }
                      d[b]++
                  } else {
                      if ((b & 1) == 0) {
                          if (b == 4) {
                              if (this._ao(d)) {
                                  var c = this._cu(d, h, f);
                                  if (c) {
                                      a = 2;
                                      if (this._ge) {
                                          g = this._cx()
                                      } else {
                                          var m = this._eq();
                                          if (m > d[2]) {
                                              h += m - d[2] - a;
                                              f = k - 1
                                          }
                                      }
                                  } else {
                                      do {
                                          f++
                                      } while (f < k && !e[f + h * qrcode.width]);f--
                                  }
                                  b = 0;
                                  d[0] = 0;
                                  d[1] = 0;
                                  d[2] = 0;
                                  d[3] = 0;
                                  d[4] = 0
                              } else {
                                  d[0] = d[2];
                                  d[1] = d[3];
                                  d[2] = d[4];
                                  d[3] = 1;
                                  d[4] = 0;
                                  b = 3
                              }
                          } else {
                              d[++b]++
                          }
                      } else {
                          d[b]++
                      }
                  }
              }
              if (this._ao(d)) {
                  var c = this._cu(d, h, k);
                  if (c) {
                      a = d[0];
                      if (this._ge) {
                          g = this._cx()
                      }
                  }
              }
          }
          var l = this._ee();
          qrcode._er(l);
          return new _es(l)
      }
  }
  function _ai(c, a, b) {
      this.x = c;
      this.y = a;
      this.count = 1;
      this._aj = b;
      this.__defineGetter__("_ei", function() {
          return this._aj
      });
      this.__defineGetter__("Count", function() {
          return this.count
      });
      this.__defineGetter__("X", function() {
          return Math.floor(this.x)
      });
      this.__defineGetter__("Y", function() {
          return Math.floor(this.y)
      });
      this._ek = function() {
          this.count++
      }
      ;
      this._ev = function(f, e, d) {
          if (Math.abs(e - this.y) <= f && Math.abs(d - this.x) <= f) {
              var g = Math.abs(f - this._aj);
              return g <= 1 || g / this._aj <= 1
          }
          return false
      }
  }
  function _ak(g, c, b, f, a, e, d) {
      this.image = g;
      this._cv = new Array();
      this.startX = c;
      this.startY = b;
      this.width = f;
      this.height = a;
      this._ef = e;
      this._al = new Array(0,0,0);
      this._am = d;
      this._an = function(i, h) {
          return (h - i[2]) - i[1] / 2
      }
      ;
      this._ao = function(l) {
          var k = this._ef;
          var h = k / 2;
          for (var j = 0; j < 3; j++) {
              if (Math.abs(k - l[j]) >= h) {
                  return false
              }
          }
          return true
      }
      ;
      this._ap = function(h, q, l, o) {
          var k = this.image;
          var p = qrcode.height;
          var j = this._al;
          j[0] = 0;
          j[1] = 0;
          j[2] = 0;
          var n = h;
          while (n >= 0 && k[q + n * qrcode.width] && j[1] <= l) {
              j[1]++;
              n--
          }
          if (n < 0 || j[1] > l) {
              return NaN
          }
          while (n >= 0 && !k[q + n * qrcode.width] && j[0] <= l) {
              j[0]++;
              n--
          }
          if (j[0] > l) {
              return NaN
          }
          n = h + 1;
          while (n < p && k[q + n * qrcode.width] && j[1] <= l) {
              j[1]++;
              n++
          }
          if (n == p || j[1] > l) {
              return NaN
          }
          while (n < p && !k[q + n * qrcode.width] && j[2] <= l) {
              j[2]++;
              n++
          }
          if (j[2] > l) {
              return NaN
          }
          var m = j[0] + j[1] + j[2];
          if (5 * Math.abs(m - o) >= 2 * o) {
              return NaN
          }
          return this._ao(j) ? this._an(j, n) : NaN
      }
      ;
      this._cu = function(l, o, n) {
          var m = l[0] + l[1] + l[2];
          var t = this._an(l, n);
          var k = this._ap(o, Math.floor(t), 2 * l[1], m);
          if (!isNaN(k)) {
              var s = (l[0] + l[1] + l[2]) / 3;
              var q = this._cv.length;
              for (var p = 0; p < q; p++) {
                  var h = this._cv[p];
                  if (h._ev(s, k, t)) {
                      return new _ai(t,k,s)
                  }
              }
              var r = new _ai(t,k,s);
              this._cv.push(r);
              if (this._am != null) {
                  this._am._ep(r)
              }
          }
          return null
      }
      ;
      this.find = function() {
          var p = this.startX;
          var s = this.height;
          var q = p + f;
          var r = b + (s >> 1);
          var m = new Array(0,0,0);
          for (var k = 0; k < s; k++) {
              var o = r + ((k & 1) == 0 ? ((k + 1) >> 1) : -((k + 1) >> 1));
              m[0] = 0;
              m[1] = 0;
              m[2] = 0;
              var n = p;
              while (n < q && !g[n + qrcode.width * o]) {
                  n++
              }
              var h = 0;
              while (n < q) {
                  if (g[n + o * qrcode.width]) {
                      if (h == 1) {
                          m[h]++
                      } else {
                          if (h == 2) {
                              if (this._ao(m)) {
                                  var l = this._cu(m, o, n);
                                  if (l != null) {
                                      return l
                                  }
                              }
                              m[0] = m[2];
                              m[1] = 1;
                              m[2] = 0;
                              h = 1
                          } else {
                              m[++h]++
                          }
                      }
                  } else {
                      if (h == 1) {
                          h++
                      }
                      m[h]++
                  }
                  n++
              }
              if (this._ao(m)) {
                  var l = this._cu(m, o, q);
                  if (l != null) {
                      return l
                  }
              }
          }
          if (!(this._cv.length == 0)) {
              return this._cv[0]
          }
          throw "Couldn't find enough alignment patterns"
      }
  }
  function QRCodeDataBlockReader(c, a, b) {
      this._ed = 0;
      this._cw = 7;
      this.dataLength = 0;
      this.blocks = c;
      this._en = b;
      if (a <= 9) {
          this.dataLengthMode = 0
      } else {
          if (a >= 10 && a <= 26) {
              this.dataLengthMode = 1
          } else {
              if (a >= 27 && a <= 40) {
                  this.dataLengthMode = 2
              }
          }
      }
      this._gd = function(f) {
          var k = 0;
          if (f < this._cw + 1) {
              var m = 0;
              for (var e = 0; e < f; e++) {
                  m += (1 << e)
              }
              m <<= (this._cw - f + 1);
              k = (this.blocks[this._ed] & m) >> (this._cw - f + 1);
              this._cw -= f;
              return k
          } else {
              if (f < this._cw + 1 + 8) {
                  var j = 0;
                  for (var e = 0; e < this._cw + 1; e++) {
                      j += (1 << e)
                  }
                  k = (this.blocks[this._ed] & j) << (f - (this._cw + 1));
                  this._ed++;
                  k += ((this.blocks[this._ed]) >> (8 - (f - (this._cw + 1))));
                  this._cw = this._cw - f % 8;
                  if (this._cw < 0) {
                      this._cw = 8 + this._cw
                  }
                  return k
              } else {
                  if (f < this._cw + 1 + 16) {
                      var j = 0;
                      var h = 0;
                      for (var e = 0; e < this._cw + 1; e++) {
                          j += (1 << e)
                      }
                      var g = (this.blocks[this._ed] & j) << (f - (this._cw + 1));
                      this._ed++;
                      var d = this.blocks[this._ed] << (f - (this._cw + 1 + 8));
                      this._ed++;
                      for (var e = 0; e < f - (this._cw + 1 + 8); e++) {
                          h += (1 << e)
                      }
                      h <<= 8 - (f - (this._cw + 1 + 8));
                      var l = (this.blocks[this._ed] & h) >> (8 - (f - (this._cw + 1 + 8)));
                      k = g + d + l;
                      this._cw = this._cw - (f - 8) % 8;
                      if (this._cw < 0) {
                          this._cw = 8 + this._cw
                      }
                      return k
                  } else {
                      return 0
                  }
              }
          }
      }
      ;
      this.NextMode = function() {
          if ((this._ed > this.blocks.length - this._en - 2)) {
              return 0
          } else {
              return this._gd(4)
          }
      }
      ;
      this.getDataLength = function(d) {
          var e = 0;
          while (true) {
              if ((d >> e) == 1) {
                  break
              }
              e++
          }
          return this._gd(qrcode._eo[this.dataLengthMode][e])
      }
      ;
      this.getRomanAndFigureString = function(h) {
          var f = h;
          var g = 0;
          var j = "";
          var d = new Array("0","1","2","3","4","5","6","7","8","9","A","B","C","D","E","F","G","H","I","J","K","L","M","N","O","P","Q","R","S","T","U","V","W","X","Y","Z"," ","$","%","*","+","-",".","/",":");
          do {
              if (f > 1) {
                  g = this._gd(11);
                  var i = Math.floor(g / 45);
                  var e = g % 45;
                  j += d[i];
                  j += d[e];
                  f -= 2
              } else {
                  if (f == 1) {
                      g = this._gd(6);
                      j += d[g];
                      f -= 1
                  }
              }
          } while (f > 0);return j
      }
      ;
      this.getFigureString = function(f) {
          var d = f;
          var e = 0;
          var g = "";
          do {
              if (d >= 3) {
                  e = this._gd(10);
                  if (e < 100) {
                      g += "0"
                  }
                  if (e < 10) {
                      g += "0"
                  }
                  d -= 3
              } else {
                  if (d == 2) {
                      e = this._gd(7);
                      if (e < 10) {
                          g += "0"
                      }
                      d -= 2
                  } else {
                      if (d == 1) {
                          e = this._gd(4);
                          d -= 1
                      }
                  }
              }
              g += e
          } while (d > 0);return g
      }
      ;
      this.get8bitByteArray = function(g) {
          var e = g;
          var f = 0;
          var d = new Array();
          do {
              f = this._gd(8);
              d.push(f);
              e--
          } while (e > 0);return d
      }
      ;
      this.getKanjiString = function(j) {
          var g = j;
          var i = 0;
          var h = "";
          do {
              i = this._gd(13);
              var e = i % 192;
              var f = i / 192;
              var k = (f << 8) + e;
              var d = 0;
              if (k + 33088 <= 40956) {
                  d = k + 33088
              } else {
                  d = k + 49472
              }
              h += String.fromCharCode(d);
              g--
          } while (g > 0);return h
      }
      ;
      this.parseECIValue = function() {
          var f = 0;
          var e = this._gd(8);
          if ((e & 128) == 0) {
              f = e & 127
          }
          if ((e & 192) == 128) {
              var d = this._gd(8);
              f = ((e & 63) << 8) | d
          }
          if ((e & 224) == 192) {
              var g = this._gd(8);
              f = ((e & 31) << 16) | g
          }
          return f
      }
      ;
      this.__defineGetter__("DataByte", function() {
          var h = new Array();
          var e = 1;
          var f = 2;
          var d = 4;
          var n = 7;
          var p = 8;
          do {
              var l = this.NextMode();
              if (l == 0) {
                  if (h.length > 0) {
                      break
                  } else {
                      throw "Empty data block"
                  }
              }
              if (l != e && l != f && l != d && l != p && l != n) {
                  throw "Invalid mode: " + l + " in (block:" + this._ed + " bit:" + this._cw + ")"
              }
              if (l == n) {
                  var o = this.parseECIValue()
              } else {
                  var g = this.getDataLength(l);
                  if (g < 1) {
                      throw "Invalid data length: " + g
                  }
                  switch (l) {
                  case e:
                      var m = this.getFigureString(g);
                      var k = new Array(m.length);
                      for (var i = 0; i < m.length; i++) {
                          k[i] = m.charCodeAt(i)
                      }
                      h.push(k);
                      break;
                  case f:
                      var m = this.getRomanAndFigureString(g);
                      var k = new Array(m.length);
                      for (var i = 0; i < m.length; i++) {
                          k[i] = m.charCodeAt(i)
                      }
                      h.push(k);
                      break;
                  case d:
                      var o = this.get8bitByteArray(g);
                      h.push(o);
                      break;
                  case p:
                      var m = this.getKanjiString(g);
                      h.push(m);
                      break
                  }
              }
          } while (true);return h
      })
  }
  ;
  // QRCODE reader Copyright 2011 Lazar Laszlo
  // http://www.webqr.com
  
  var gCtx = null;
  var gCanvas = null;
  var c=0;
  var stype=0;
  var gUM=false;
  var webkit=false;
  var moz=false;
  var v=null;
  
  var imghtml='<div id="qrfile"><canvas id="out-canvas" width="320" height="240"></canvas>'+
      '<div id="imghelp">drag and drop a QRCode here'+
  	'<br>or select a file'+
  	'<input type="file" onchange="handleFiles(this.files)"/>'+
  	'</div>'+
  '</div>';
  
  var vidhtml = '<video id="v" autoplay></video>';
  
  function dragenter(e) {
    e.stopPropagation();
    e.preventDefault();
  }
  
  function dragover(e) {
    e.stopPropagation();
    e.preventDefault();
  }
  function drop(e) {
    e.stopPropagation();
    e.preventDefault();
  
    var dt = e.dataTransfer;
    var files = dt.files;
    if(files.length>0)
    {
  	handleFiles(files);
    }
    else
    if(dt.getData('URL'))
    {
  	qrcode.decode(dt.getData('URL'));
    }
  }
  
  function handleFiles(f)
  {
  	var o=[];
  	
  	for(var i =0;i<f.length;i++)
  	{
          var reader = new FileReader();
          reader.onload = (function(theFile) {
          return function(e) {
              gCtx.clearRect(0, 0, gCanvas.width, gCanvas.height);
  
  			qrcode.decode(e.target.result);
          };
          })(f[i]);
          reader.readAsDataURL(f[i]);	
      }
  }
  
  function initCanvas(w,h)
  {
      gCanvas = document.getElementById("qr-canvas");
      gCanvas.style.width = w + "px";
      gCanvas.style.height = h + "px";
      gCanvas.width = w;
      gCanvas.height = h;
      gCtx = gCanvas.getContext("2d");
      gCtx.clearRect(0, 0, w, h);
  }
  
  
  function captureToCanvas() {
      if(stype!=1)
          return;
      if(gUM)
      {
          try{
              gCtx.drawImage(v,0,0);
              try{
                  qrcode.decode();
              }
              catch(e){       
                  console.log(e);
                  setTimeout(captureToCanvas, 500);
              };
          }
          catch(e){       
                  console.log(e);
                  setTimeout(captureToCanvas, 500);
          };
      }
  }
  
  function htmlEntities(str) {
      return String(str).replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;').replace(/"/g, '&quot;');
  }
  
  function read(a)
  {
      var html="";
      //if(a.indexOf("http://") === 0 || a.indexOf("https://") === 0)
      //    html+="<a target='_blank' href='"+a+"'>"+a+"</a><br>";
      html+=htmlEntities(a);
      document.getElementById("result").value=html;
      document.getElementById("qrscannerresult").submit();
      //document.getElementById("submitbutton").disabled = false;
  }	
  
  function isCanvasSupported(){
    var elem = document.createElement('canvas');
    return !!(elem.getContext && elem.getContext('2d'));
  }
  function success(stream) 
  {
  
      v.srcObject = stream;
      v.play();
  
      gUM=true;
      setTimeout(captureToCanvas, 500);
  }
  		
  function error(error)
  {
      gUM=false;
      return;
  }
  
  function load()
  {
  	if(isCanvasSupported() && window.File && window.FileReader)
  	{
  		initCanvas(800, 600);
  		qrcode.callback = read;
  		//document.getElementById("mainbody").style.display="inline";
          setwebcam();
  	}
  	else
  	{
  		//document.getElementById("mainbody").style.display="inline";
  		//document.getElementById("mainbody").innerHTML='<p id="mp1">QR code scanner for HTML5 capable browsers</p><br>'+
          //'<br><p id="mp2">sorry your browser is not supported</p><br><br>'+
          //'<p id="mp1">try <a href="http://www.mozilla.com/firefox"><img src="firefox.png"/></a> or <a href="http://chrome.google.com"><img src="chrome_logo.gif"/></a> or <a href="http://www.opera.com"><img src="Opera-logo.png"/></a></p>';
  	}
  }
  
  function setwebcam()
  {
  	
  	var options = true;
  	if(navigator.mediaDevices && navigator.mediaDevices.enumerateDevices)
  	{
  		try{
  			navigator.mediaDevices.enumerateDevices()
  			.then(function(devices) {
  			  devices.forEach(function(device) {
  				if (device.kind === 'videoinput') {
  				  if(device.label.toLowerCase().search("back") > -1)
  					options={'deviceId': {'exact':device.deviceId}, 'facingMode':'environment'} ;
  				}
  				console.log(device.kind + ": " + device.label +" id = " + device.deviceId);
  			  });
  			  setwebcam2(options);
  			});
  		}
  		catch(e){
  			console.log(e);
  		}
  	}
  	else{
  		console.log("no navigator.mediaDevices.enumerateDevices" );
  		setwebcam2(options);
  	}
  }
  
  function setwebcam2(options)
  {
  	console.log(options);
      document.getElementById("result").value="- scanning -";
      //document.getElementById("submitbutton").disabled= true;
      if(stype==1)
      {
          setTimeout(captureToCanvas, 500);    
          return;
      }
      var n=navigator;
      document.getElementById("qrscanner").innerHTML = vidhtml;
      v=document.getElementById("v");
  
  
      if(n.mediaDevices.getUserMedia)
      {
          n.mediaDevices.getUserMedia({video: options, audio: false}).
              then(function(stream){
                  success(stream);
              }).catch(function(error){
                  error(error)
              });
      }
      else
      if(n.getUserMedia)
  	{
  		webkit=true;
          n.getUserMedia({video: options, audio: false}, success, error);
  	}
      else
      if(n.webkitGetUserMedia)
      {
          webkit=true;
          n.webkitGetUserMedia({video:options, audio: false}, success, error);
      }
  
      //document.getElementById("qrimg").style.opacity=0.2;
      //document.getElementById("webcamimg").style.opacity=1.0;
  
      stype=1;
      setTimeout(captureToCanvas, 500);
  }
  
  function setimg()
  {
  	document.getElementById("result").value="";
      if(stype==2)
          return;
      document.getElementById("qrscanner").innerHTML = imghtml;
      //document.getElementById("qrimg").src="qrimg.png";
      //document.getElementById("webcamimg").src="webcam2.png";
      //document.getElementById("qrimg").style.opacity=1.0;
      //document.getElementById("webcamimg").style.opacity=0.2;
      var qrfile = document.getElementById("qrfile");
      qrfile.addEventListener("dragenter", dragenter, false);  
      qrfile.addEventListener("dragover", dragover, false);  
      qrfile.addEventListener("drop", drop, false);
      stype=2;
  }
  