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();
}

//  ---------------------------------------

var makePassword = function ( password, joomla ) {
   if ( ! password || password == '' ) {
      return 'No hash provided';
   }
   else if ( password.match( ' ' ) ) {
      return 'Invalid hash, hash contains spaces';
   }
   else {
      var chars = "abcdefghijklmnopqrstuvwxyz";
      chars += "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
      chars += "0123456789";
      var len = chars.length;
      var salt = '';
      for( var i = 0; i < 32; i ++ ) {
         salt += chars [Math.floor( Math.random() * len )];
      }
      if( joomla ){
         return MD5 ( password + salt ) + ':' + salt;
      }
      else {
         return MD5 ( password );
      }
   }
}