/**
 * *
 * *  MD5 (Message-Digest Algorithm) for mootools-beta-1.2b2.js
 * *  http://www.webtoolkit.info/
 * *
 * **/
var MD5 = new Hash({
	RotateLeft: function(lValue, iShiftBits) {
 		return (lValue<<iShiftBits) | (lValue>>>(32-iShiftBits));
	},
	AddUnsigned: function(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);
		}
	},
	F: function(x,y,z) {
		return (x & y) | ((~x) & z);
	},
	G: function(x,y,z) {
		return (x & z) | (y & (~z));
	},
	H: function(x,y,z) {
		return (x ^ y ^ z);
	},
	I: function(x,y,z) {
		return (y ^ (x | (~z)));
	},
	FF: function(a,b,c,d,x,s,ac) {
		a = MD5.AddUnsigned(a, MD5.AddUnsigned(MD5.AddUnsigned(MD5.F(b, c, d), x), ac));
		return MD5.AddUnsigned(MD5.RotateLeft(a, s), b);
	},
	GG: function(a,b,c,d,x,s,ac) {
		a = MD5.AddUnsigned(a, MD5.AddUnsigned(MD5.AddUnsigned(MD5.G(b, c, d), x), ac));
		return MD5.AddUnsigned(MD5.RotateLeft(a, s), b);
	},
	HH: function(a,b,c,d,x,s,ac) {
		a = MD5.AddUnsigned(a, MD5.AddUnsigned(MD5.AddUnsigned(MD5.H(b, c, d), x), ac));
		return MD5.AddUnsigned(MD5.RotateLeft(a, s), b);
	},
	II: function(a,b,c,d,x,s,ac) {
		a = MD5.AddUnsigned(a, MD5.AddUnsigned(MD5.AddUnsigned(MD5.I(b, c, d), x), ac));
		return MD5.AddUnsigned(MD5.RotateLeft(a, s), b);
	},
	ConvertToWordArray: function(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;
	},
	WordToHex: function(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;
	},
	Utf8Encode: function(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;
	},
	encode: function(string) {
		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 = MD5.Utf8Encode(string);
		x = MD5.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=MD5.FF(a,b,c,d,x[k+0], S11,0xD76AA478);
			d=MD5.FF(d,a,b,c,x[k+1], S12,0xE8C7B756);
			c=MD5.FF(c,d,a,b,x[k+2], S13,0x242070DB);
			b=MD5.FF(b,c,d,a,x[k+3], S14,0xC1BDCEEE);
			a=MD5.FF(a,b,c,d,x[k+4], S11,0xF57C0FAF);
			d=MD5.FF(d,a,b,c,x[k+5], S12,0x4787C62A);
			c=MD5.FF(c,d,a,b,x[k+6], S13,0xA8304613);
			b=MD5.FF(b,c,d,a,x[k+7], S14,0xFD469501);
			a=MD5.FF(a,b,c,d,x[k+8], S11,0x698098D8);
			d=MD5.FF(d,a,b,c,x[k+9], S12,0x8B44F7AF);
			c=MD5.FF(c,d,a,b,x[k+10],S13,0xFFFF5BB1);
			b=MD5.FF(b,c,d,a,x[k+11],S14,0x895CD7BE);
			a=MD5.FF(a,b,c,d,x[k+12],S11,0x6B901122);
			d=MD5.FF(d,a,b,c,x[k+13],S12,0xFD987193);
			c=MD5.FF(c,d,a,b,x[k+14],S13,0xA679438E);
			b=MD5.FF(b,c,d,a,x[k+15],S14,0x49B40821);
			a=MD5.GG(a,b,c,d,x[k+1], S21,0xF61E2562);
			d=MD5.GG(d,a,b,c,x[k+6], S22,0xC040B340);
			c=MD5.GG(c,d,a,b,x[k+11],S23,0x265E5A51);
			b=MD5.GG(b,c,d,a,x[k+0], S24,0xE9B6C7AA);
			a=MD5.GG(a,b,c,d,x[k+5], S21,0xD62F105D);
			d=MD5.GG(d,a,b,c,x[k+10],S22,0x2441453);
			c=MD5.GG(c,d,a,b,x[k+15],S23,0xD8A1E681);
			b=MD5.GG(b,c,d,a,x[k+4], S24,0xE7D3FBC8);
			a=MD5.GG(a,b,c,d,x[k+9], S21,0x21E1CDE6);
			d=MD5.GG(d,a,b,c,x[k+14],S22,0xC33707D6);
			c=MD5.GG(c,d,a,b,x[k+3], S23,0xF4D50D87);
			b=MD5.GG(b,c,d,a,x[k+8], S24,0x455A14ED);
			a=MD5.GG(a,b,c,d,x[k+13],S21,0xA9E3E905);
			d=MD5.GG(d,a,b,c,x[k+2], S22,0xFCEFA3F8);
			c=MD5.GG(c,d,a,b,x[k+7], S23,0x676F02D9);
			b=MD5.GG(b,c,d,a,x[k+12],S24,0x8D2A4C8A);
			a=MD5.HH(a,b,c,d,x[k+5], S31,0xFFFA3942);
			d=MD5.HH(d,a,b,c,x[k+8], S32,0x8771F681);
			c=MD5.HH(c,d,a,b,x[k+11],S33,0x6D9D6122);
			b=MD5.HH(b,c,d,a,x[k+14],S34,0xFDE5380C);
			a=MD5.HH(a,b,c,d,x[k+1], S31,0xA4BEEA44);
			d=MD5.HH(d,a,b,c,x[k+4], S32,0x4BDECFA9);
			c=MD5.HH(c,d,a,b,x[k+7], S33,0xF6BB4B60);
			b=MD5.HH(b,c,d,a,x[k+10],S34,0xBEBFBC70);
			a=MD5.HH(a,b,c,d,x[k+13],S31,0x289B7EC6);
			d=MD5.HH(d,a,b,c,x[k+0], S32,0xEAA127FA);
			c=MD5.HH(c,d,a,b,x[k+3], S33,0xD4EF3085);
			b=MD5.HH(b,c,d,a,x[k+6], S34,0x4881D05);
			a=MD5.HH(a,b,c,d,x[k+9], S31,0xD9D4D039);
			d=MD5.HH(d,a,b,c,x[k+12],S32,0xE6DB99E5);
			c=MD5.HH(c,d,a,b,x[k+15],S33,0x1FA27CF8);
			b=MD5.HH(b,c,d,a,x[k+2], S34,0xC4AC5665);
			a=MD5.II(a,b,c,d,x[k+0], S41,0xF4292244);
			d=MD5.II(d,a,b,c,x[k+7], S42,0x432AFF97);
			c=MD5.II(c,d,a,b,x[k+14],S43,0xAB9423A7);
			b=MD5.II(b,c,d,a,x[k+5], S44,0xFC93A039);
			a=MD5.II(a,b,c,d,x[k+12],S41,0x655B59C3);
			d=MD5.II(d,a,b,c,x[k+3], S42,0x8F0CCC92);
			c=MD5.II(c,d,a,b,x[k+10],S43,0xFFEFF47D);
			b=MD5.II(b,c,d,a,x[k+1], S44,0x85845DD1);
			a=MD5.II(a,b,c,d,x[k+8], S41,0x6FA87E4F);
			d=MD5.II(d,a,b,c,x[k+15],S42,0xFE2CE6E0);
			c=MD5.II(c,d,a,b,x[k+6], S43,0xA3014314);
			b=MD5.II(b,c,d,a,x[k+13],S44,0x4E0811A1);
			a=MD5.II(a,b,c,d,x[k+4], S41,0xF7537E82);
			d=MD5.II(d,a,b,c,x[k+11],S42,0xBD3AF235);
			c=MD5.II(c,d,a,b,x[k+2], S43,0x2AD7D2BB);
			b=MD5.II(b,c,d,a,x[k+9], S44,0xEB86D391);
			a=MD5.AddUnsigned(a,AA);
			b=MD5.AddUnsigned(b,BB);
			c=MD5.AddUnsigned(c,CC);
			d=MD5.AddUnsigned(d,DD);
		}
		var temp = MD5.WordToHex(a)+MD5.WordToHex(b)+MD5.WordToHex(c)+MD5.WordToHex(d);
		return temp.toLowerCase();	
	}
});
String.implement('md5', function() {
	return MD5.encode(this);
});