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();  
 }