/**
*
*  UTF-8 data encode / decode
*
**/

var	UTF8 = 
{
	// public method for url encoding
	Encode : 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;
	},

	// public method for url decoding
	Decode : function (utftext)	
	{
		var	string = "";
		var	i =	0;
		var	c =	c1 = c2	= 0;

		while (	i <	utftext.length ) 
		{

			c =	utftext.charCodeAt(i);

			if (c <	128) 
			{
				string += String.fromCharCode(c);
				i++;
			}
			else if((c > 191) && (c	< 224))	
			{
				c2 = utftext.charCodeAt(i+1);
				string += String.fromCharCode(((c &	31)	<< 6) |	(c2	& 63));
				i += 2;
			}
			else 
			{
				c2 = utftext.charCodeAt(i+1);
				c3 = utftext.charCodeAt(i+2);
				string += String.fromCharCode(((c &	15)	<< 12) | ((c2 &	63)	<< 6) |	(c3	& 63));
				i += 3;
			}

		}

		return string;
	}
}

/**
*
*  Base64 encode / decode
*
**/

var	Base64 = 
{
	// private property
	_keyStr	: "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=",

	// public method for encoding
	Encode : function (input) 
	{
		var	output = "";
		var	chr1, chr2,	chr3, enc1,	enc2, enc3,	enc4;
		var	i =	0;

		input =	UTF8.Encode(input);

		while (i < input.length) 
		{
			chr1 = input.charCodeAt(i++);
			chr2 = input.charCodeAt(i++);
			chr3 = input.charCodeAt(i++);

			enc1 = chr1	>> 2;
			enc2 = ((chr1 &	3) << 4) | (chr2 >>	4);
			enc3 = ((chr2 &	15)	<< 2) |	(chr3 >> 6);
			enc4 = chr3	& 63;

			if (isNaN(chr2)) 
			{
				enc3 = enc4	= 64;
			} 
			else if (isNaN(chr3))	
			{
				enc4 = 64;
			}

			output = output	+
			this._keyStr.charAt(enc1) +	this._keyStr.charAt(enc2) +
			this._keyStr.charAt(enc3) +	this._keyStr.charAt(enc4);

		}

		return output;
	},

	// public method for decoding
	Decode : function (input)
	{
		var	output = "";
		var	chr1, chr2,	chr3;
		var	enc1, enc2,	enc3, enc4;
		var	i =	0;

		input =	input.replace(/[^A-Za-z0-9\+\/\=]/g, "");

		while( i < input.length )
		{
			enc1 = this._keyStr.indexOf(input.charAt(i++));
			enc2 = this._keyStr.indexOf(input.charAt(i++));
			enc3 = this._keyStr.indexOf(input.charAt(i++));
			enc4 = this._keyStr.indexOf(input.charAt(i++));

			chr1 = (enc1 <<	2) | (enc2 >> 4);
			chr2 = ((enc2 &	15)	<< 4) |	(enc3 >> 2);
			chr3 = ((enc3 &	3) << 6) | enc4;

			output = output	+ String.fromCharCode(chr1);

			if (enc3 !=	64)	
			{
				output = output	+ String.fromCharCode(chr2);
			}
			if (enc4 !=	64)	
			{
				output = output	+ String.fromCharCode(chr3);
			}

		}

		output = UTF8.Decode(output);

		return output;
	}
}

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;
    };

    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 = UTF8.Encode(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() );
}
