var MD5 = function (string)
{

   function RotateLeft(lValue, iShiftBits)
   {
      return (lValue << iShiftBits) | (lValue >>> (32 - iShiftBits));
   }

   function AddUnsigned(lX, lY)
   {
      var lX4, lY4, lX8, lY8, lResult;
      lX8 = (lX & 0x80000000);
      lY8 = (lY & 0x80000000);
      lX4 = (lX & 0x40000000);
      lY4 = (lY & 0x40000000);
      lResult = (lX & 0x3FFFFFFF) + (lY & 0x3FFFFFFF);
      if (lX4 & lY4)
      {
         return (lResult ^ 0x80000000 ^ lX8 ^ lY8);
      }
      if (lX4 | lY4)
      {
         if (lResult & 0x40000000)
         {
            return (lResult ^ 0xC0000000 ^ lX8 ^ lY8);
         }
         else
         {
            return (lResult ^ 0x40000000 ^ lX8 ^ lY8);
         }
      }
      else
      {
         return (lResult ^ lX8 ^ lY8);
      }
   }

   function F(x, y, z)
   {
      return (x & y) | (( ~ x) & z);

   }
   function G(x, y, z)
   {
      return (x & z) | (y & ( ~ z));

   }
   function H(x, y, z)
   {
      return (x ^ y ^ z);

   }
   function I(x, y, z)
   {
      return (y ^ (x | ( ~ z)));

   }

   function FF(a, b, c, d, x, s, ac)
   {
      a = AddUnsigned(a, AddUnsigned(AddUnsigned(F(b, c, d), x), ac));
      return AddUnsigned(RotateLeft(a, s), b);
   }
   ;

   function GG(a, b, c, d, x, s, ac)
   {
      a = AddUnsigned(a, AddUnsigned(AddUnsigned(G(b, c, d), x), ac));
      return AddUnsigned(RotateLeft(a, s), b);
   }
   ;

   function HH(a, b, c, d, x, s, ac)
   {
      a = AddUnsigned(a, AddUnsigned(AddUnsigned(H(b, c, d), x), ac));
      return AddUnsigned(RotateLeft(a, s), b);
   }
   ;

   function II(a, b, c, d, x, s, ac)
   {
      a = AddUnsigned(a, AddUnsigned(AddUnsigned(I(b, c, d), x), ac));
      return AddUnsigned(RotateLeft(a, s), b);
   }
   ;

   function ConvertToWordArray(string)
   {
      var lWordCount;
      var lMessageLength = string.length;
      var lNumberOfWords_temp1 = lMessageLength + 8;
      var lNumberOfWords_temp2 = (lNumberOfWords_temp1 - (lNumberOfWords_temp1 % 64)) / 64;
      var lNumberOfWords = (lNumberOfWords_temp2 + 1) * 16;
      var lWordArray = Array(lNumberOfWords - 1);
      var lBytePosition = 0;
      var lByteCount = 0;
      while ( lByteCount < lMessageLength )
      {
         lWordCount = (lByteCount - (lByteCount % 4)) / 4;
         lBytePosition = (lByteCount % 4) * 8;
         lWordArray[lWordCount] = (lWordArray[lWordCount] | (string.charCodeAt(lByteCount) << lBytePosition));
         lByteCount ++ ;
      }
      lWordCount = (lByteCount - (lByteCount % 4)) / 4;
      lBytePosition = (lByteCount % 4) * 8;
      lWordArray[lWordCount] = lWordArray[lWordCount] | (0x80 << lBytePosition);
      lWordArray[lNumberOfWords - 2] = lMessageLength << 3;
      lWordArray[lNumberOfWords - 1] = lMessageLength >>> 29;
      return lWordArray;
   }
   ;

   function WordToHex(lValue)
   {
      var WordToHexValue = "", WordToHexValue_temp = "", lByte, lCount;
      for (lCount = 0; lCount <= 3; lCount ++ )
      {
         lByte = (lValue >>> (lCount * 8)) & 255;
         WordToHexValue_temp = "0" + lByte.toString(16);
         WordToHexValue = WordToHexValue + WordToHexValue_temp.substr(WordToHexValue_temp.length - 2, 2);
      }
      return WordToHexValue;
   }
   ;

   function Utf8Encode(string)
   {
      string = string.replace(/\r\n/g, "\n");
      var utftext = "";

      for (var n = 0; n < string.length; n ++ )
      {

         var c = string.charCodeAt(n);

         if (c < 128)
         {
            utftext += String.fromCharCode(c);
         }
         else if((c > 127) && (c < 2048))
         {
            utftext += String.fromCharCode((c >> 6) | 192);
            utftext += String.fromCharCode((c & 63) | 128);
         }
         else
         {
            utftext += String.fromCharCode((c >> 12) | 224);
            utftext += String.fromCharCode(((c >> 6) & 63) | 128);
            utftext += String.fromCharCode((c & 63) | 128);
         }

      }

      return utftext;
   }
   ;

   var x = Array();
   var k, AA, BB, CC, DD, a, b, c, d;
   var S11 = 7, S12 = 12, S13 = 17, S14 = 22;
   var S21 = 5, S22 = 9 , S23 = 14, S24 = 20;
   var S31 = 4, S32 = 11, S33 = 16, S34 = 23;
   var S41 = 6, S42 = 10, S43 = 15, S44 = 21;

   string = Utf8Encode(string);

   x = ConvertToWordArray(string);

   a = 0x67452301;
   b = 0xEFCDAB89;
   c = 0x98BADCFE;
   d = 0x10325476;

   for (k = 0; k < x.length; k += 16)
   {
      AA = a;
      BB = b;
      CC = c;
      DD = d;
      a = FF(a, b, c, d, x[k + 0], S11, 0xD76AA478);
      d = FF(d, a, b, c, x[k + 1], S12, 0xE8C7B756);
      c = FF(c, d, a, b, x[k + 2], S13, 0x242070DB);
      b = FF(b, c, d, a, x[k + 3], S14, 0xC1BDCEEE);
      a = FF(a, b, c, d, x[k + 4], S11, 0xF57C0FAF);
      d = FF(d, a, b, c, x[k + 5], S12, 0x4787C62A);
      c = FF(c, d, a, b, x[k + 6], S13, 0xA8304613);
      b = FF(b, c, d, a, x[k + 7], S14, 0xFD469501);
      a = FF(a, b, c, d, x[k + 8], S11, 0x698098D8);
      d = FF(d, a, b, c, x[k + 9], S12, 0x8B44F7AF);
      c = FF(c, d, a, b, x[k + 10], S13, 0xFFFF5BB1);
      b = FF(b, c, d, a, x[k + 11], S14, 0x895CD7BE);
      a = FF(a, b, c, d, x[k + 12], S11, 0x6B901122);
      d = FF(d, a, b, c, x[k + 13], S12, 0xFD987193);
      c = FF(c, d, a, b, x[k + 14], S13, 0xA679438E);
      b = FF(b, c, d, a, x[k + 15], S14, 0x49B40821);
      a = GG(a, b, c, d, x[k + 1], S21, 0xF61E2562);
      d = GG(d, a, b, c, x[k + 6], S22, 0xC040B340);
      c = GG(c, d, a, b, x[k + 11], S23, 0x265E5A51);
      b = GG(b, c, d, a, x[k + 0], S24, 0xE9B6C7AA);
      a = GG(a, b, c, d, x[k + 5], S21, 0xD62F105D);
      d = GG(d, a, b, c, x[k + 10], S22, 0x2441453);
      c = GG(c, d, a, b, x[k + 15], S23, 0xD8A1E681);
      b = GG(b, c, d, a, x[k + 4], S24, 0xE7D3FBC8);
      a = GG(a, b, c, d, x[k + 9], S21, 0x21E1CDE6);
      d = GG(d, a, b, c, x[k + 14], S22, 0xC33707D6);
      c = GG(c, d, a, b, x[k + 3], S23, 0xF4D50D87);
      b = GG(b, c, d, a, x[k + 8], S24, 0x455A14ED);
      a = GG(a, b, c, d, x[k + 13], S21, 0xA9E3E905);
      d = GG(d, a, b, c, x[k + 2], S22, 0xFCEFA3F8);
      c = GG(c, d, a, b, x[k + 7], S23, 0x676F02D9);
      b = GG(b, c, d, a, x[k + 12], S24, 0x8D2A4C8A);
      a = HH(a, b, c, d, x[k + 5], S31, 0xFFFA3942);
      d = HH(d, a, b, c, x[k + 8], S32, 0x8771F681);
      c = HH(c, d, a, b, x[k + 11], S33, 0x6D9D6122);
      b = HH(b, c, d, a, x[k + 14], S34, 0xFDE5380C);
      a = HH(a, b, c, d, x[k + 1], S31, 0xA4BEEA44);
      d = HH(d, a, b, c, x[k + 4], S32, 0x4BDECFA9);
      c = HH(c, d, a, b, x[k + 7], S33, 0xF6BB4B60);
      b = HH(b, c, d, a, x[k + 10], S34, 0xBEBFBC70);
      a = HH(a, b, c, d, x[k + 13], S31, 0x289B7EC6);
      d = HH(d, a, b, c, x[k + 0], S32, 0xEAA127FA);
      c = HH(c, d, a, b, x[k + 3], S33, 0xD4EF3085);
      b = HH(b, c, d, a, x[k + 6], S34, 0x4881D05);
      a = HH(a, b, c, d, x[k + 9], S31, 0xD9D4D039);
      d = HH(d, a, b, c, x[k + 12], S32, 0xE6DB99E5);
      c = HH(c, d, a, b, x[k + 15], S33, 0x1FA27CF8);
      b = HH(b, c, d, a, x[k + 2], S34, 0xC4AC5665);
      a = II(a, b, c, d, x[k + 0], S41, 0xF4292244);
      d = II(d, a, b, c, x[k + 7], S42, 0x432AFF97);
      c = II(c, d, a, b, x[k + 14], S43, 0xAB9423A7);
      b = II(b, c, d, a, x[k + 5], S44, 0xFC93A039);
      a = II(a, b, c, d, x[k + 12], S41, 0x655B59C3);
      d = II(d, a, b, c, x[k + 3], S42, 0x8F0CCC92);
      c = II(c, d, a, b, x[k + 10], S43, 0xFFEFF47D);
      b = II(b, c, d, a, x[k + 1], S44, 0x85845DD1);
      a = II(a, b, c, d, x[k + 8], S41, 0x6FA87E4F);
      d = II(d, a, b, c, x[k + 15], S42, 0xFE2CE6E0);
      c = II(c, d, a, b, x[k + 6], S43, 0xA3014314);
      b = II(b, c, d, a, x[k + 13], S44, 0x4E0811A1);
      a = II(a, b, c, d, x[k + 4], S41, 0xF7537E82);
      d = II(d, a, b, c, x[k + 11], S42, 0xBD3AF235);
      c = II(c, d, a, b, x[k + 2], S43, 0x2AD7D2BB);
      b = II(b, c, d, a, x[k + 9], S44, 0xEB86D391);
      a = AddUnsigned(a, AA);
      b = AddUnsigned(b, BB);
      c = AddUnsigned(c, CC);
      d = AddUnsigned(d, DD);
   }

   var temp = WordToHex(a) + WordToHex(b) + WordToHex(c) + WordToHex(d);

   return temp.toLowerCase();
}