var hexcase = 0; 
var b64pad = ""; 
var chrsz = 8; 

function MD5(s){ return binl2hex(core_md5(str2binl(s), s.length * chrsz));}

function core_md5(x, len)
{
	x[len >> 5] |= 0x80 << ((len) % 32);
	x[(((len + 64) >>> 9) << 4) + 14] = len;

	var a = 1732584193;
	var b = -271733879;
	var c = -1732584194;
	var d = 271733878;

	for(var i = 0; i < x.length; i += 16)
	{
	var olda = a;
	var oldb = b;
	var oldc = c;
	var oldd = d;

	a = md5_ff(a, b, c, d, x[i+ 0], 7 , -680876936);
	d = md5_ff(d, a, b, c, x[i+ 1], 12, -389564586);
	c = md5_ff(c, d, a, b, x[i+ 2], 17, 606105819);
	b = md5_ff(b, c, d, a, x[i+ 3], 22, -1044525330);
	a = md5_ff(a, b, c, d, x[i+ 4], 7 , -176418897);
	d = md5_ff(d, a, b, c, x[i+ 5], 12, 1200080426);
	c = md5_ff(c, d, a, b, x[i+ 6], 17, -1473231341);
	b = md5_ff(b, c, d, a, x[i+ 7], 22, -45705983);
	a = md5_ff(a, b, c, d, x[i+ 8], 7 , 1770035416);
	d = md5_ff(d, a, b, c, x[i+ 9], 12, -1958414417);
	c = md5_ff(c, d, a, b, x[i+10], 17, -42063);
	b = md5_ff(b, c, d, a, x[i+11], 22, -1990404162);
	a = md5_ff(a, b, c, d, x[i+12], 7 , 1804603682);
	d = md5_ff(d, a, b, c, x[i+13], 12, -40341101);
	c = md5_ff(c, d, a, b, x[i+14], 17, -1502002290);
	b = md5_ff(b, c, d, a, x[i+15], 22, 1236535329);

	a = md5_gg(a, b, c, d, x[i+ 1], 5 , -165796510);
	d = md5_gg(d, a, b, c, x[i+ 6], 9 , -1069501632);
	c = md5_gg(c, d, a, b, x[i+11], 14, 643717713);
	b = md5_gg(b, c, d, a, x[i+ 0], 20, -373897302);
	a = md5_gg(a, b, c, d, x[i+ 5], 5 , -701558691);
	d = md5_gg(d, a, b, c, x[i+10], 9 , 38016083);
	c = md5_gg(c, d, a, b, x[i+15], 14, -660478335);
	b = md5_gg(b, c, d, a, x[i+ 4], 20, -405537848);
	a = md5_gg(a, b, c, d, x[i+ 9], 5 , 568446438);
	d = md5_gg(d, a, b, c, x[i+14], 9 , -1019803690);
	c = md5_gg(c, d, a, b, x[i+ 3], 14, -187363961);
	b = md5_gg(b, c, d, a, x[i+ 8], 20, 1163531501);
	a = md5_gg(a, b, c, d, x[i+13], 5 , -1444681467);
	d = md5_gg(d, a, b, c, x[i+ 2], 9 , -51403784);
	c = md5_gg(c, d, a, b, x[i+ 7], 14, 1735328473);
	b = md5_gg(b, c, d, a, x[i+12], 20, -1926607734);

	a = md5_hh(a, b, c, d, x[i+ 5], 4 , -378558);
	d = md5_hh(d, a, b, c, x[i+ 8], 11, -2022574463);
	c = md5_hh(c, d, a, b, x[i+11], 16, 1839030562);
	b = md5_hh(b, c, d, a, x[i+14], 23, -35309556);
	a = md5_hh(a, b, c, d, x[i+ 1], 4 , -1530992060);
	d = md5_hh(d, a, b, c, x[i+ 4], 11, 1272893353);
	c = md5_hh(c, d, a, b, x[i+ 7], 16, -155497632);
	b = md5_hh(b, c, d, a, x[i+10], 23, -1094730640);
	a = md5_hh(a, b, c, d, x[i+13], 4 , 681279174);
	d = md5_hh(d, a, b, c, x[i+ 0], 11, -358537222);
	c = md5_hh(c, d, a, b, x[i+ 3], 16, -722521979);
	b = md5_hh(b, c, d, a, x[i+ 6], 23, 76029189);
	a = md5_hh(a, b, c, d, x[i+ 9], 4 , -640364487);
	d = md5_hh(d, a, b, c, x[i+12], 11, -421815835);
	c = md5_hh(c, d, a, b, x[i+15], 16, 530742520);
	b = md5_hh(b, c, d, a, x[i+ 2], 23, -995338651);

	a = md5_ii(a, b, c, d, x[i+ 0], 6 , -198630844);
	d = md5_ii(d, a, b, c, x[i+ 7], 10, 1126891415);
	c = md5_ii(c, d, a, b, x[i+14], 15, -1416354905);
	b = md5_ii(b, c, d, a, x[i+ 5], 21, -57434055);
	a = md5_ii(a, b, c, d, x[i+12], 6 , 1700485571);
	d = md5_ii(d, a, b, c, x[i+ 3], 10, -1894986606);
	c = md5_ii(c, d, a, b, x[i+10], 15, -1051523);
	b = md5_ii(b, c, d, a, x[i+ 1], 21, -2054922799);
	a = md5_ii(a, b, c, d, x[i+ 8], 6 , 1873313359);
	d = md5_ii(d, a, b, c, x[i+15], 10, -30611744);
	c = md5_ii(c, d, a, b, x[i+ 6], 15, -1560198380);
	b = md5_ii(b, c, d, a, x[i+13], 21, 1309151649);
	a = md5_ii(a, b, c, d, x[i+ 4], 6 , -145523070);
	d = md5_ii(d, a, b, c, x[i+11], 10, -1120210379);
	c = md5_ii(c, d, a, b, x[i+ 2], 15, 718787259);
	b = md5_ii(b, c, d, a, x[i+ 9], 21, -343485551);

	a = safe_add(a, olda);
	b = safe_add(b, oldb);
	c = safe_add(c, oldc);
	d = safe_add(d, oldd);
	}
	return Array(a, b, c, d);

}

function md5_cmn(q, a, b, x, s, t)
{
	return safe_add(bit_rol(safe_add(safe_add(a, q), safe_add(x, t)), s),b);
}
function md5_ff(a, b, c, d, x, s, t)
{
	return md5_cmn((b & c) | ((~b) & d), a, b, x, s, t);
}
function md5_gg(a, b, c, d, x, s, t)
{
	return md5_cmn((b & d) | (c & (~d)), a, b, x, s, t);
}
function md5_hh(a, b, c, d, x, s, t)
{
	return md5_cmn(b ^ c ^ d, a, b, x, s, t);
}
function md5_ii(a, b, c, d, x, s, t)
{
	return md5_cmn(c ^ (b | (~d)), a, b, x, s, t);
}

function core_hmac_md5(key, data)
{
	var bkey = str2binl(key);
	if(bkey.length > 16) bkey = core_md5(bkey, key.length * chrsz);

	var ipad = Array(16), opad = Array(16);
	for(var i = 0; i < 16; i++)
	{
	ipad[i] = bkey[i] ^ 0x36363636;
	opad[i] = bkey[i] ^ 0x5C5C5C5C;
    }
    var hash = core_md5(ipad.concat(str2binl(data)), 512 + data.length * chrsz);
	return core_md5(opad.concat(hash), 512 + 128);
}

function safe_add(x, y)
{
	var lsw = (x & 0xFFFF) + (y & 0xFFFF);
	var msw = (x >> 16) + (y >> 16) + (lsw >> 16);
	return (msw << 16) | (lsw & 0xFFFF);
}

function bit_rol(num, cnt)
{
	return (num << cnt) | (num >>> (32 - cnt));
}

function str2binl(str)
{
	var bin = Array();
	var mask = (1 << chrsz) - 1;
	for(var i = 0; i < str.length * chrsz; i += chrsz)
	bin[i>>5] |= (str.charCodeAt(i / chrsz) & mask) << (i%32);
	return bin;
}

function binl2str(bin)
{
	var str = "";
	var mask = (1 << chrsz) - 1;
	for(var i = 0; i < bin.length * 32; i += chrsz)
	str += String.fromCharCode((bin[i>>5] >>> (i % 32)) & mask);
	return str;
}

function binl2hex(binarray)
{
	var hex_tab = hexcase ? "0123456789ABCDEF" : "0123456789abcdef";
	var str = "";
	for(var i = 0; i < binarray.length * 4; i++)
	{
	str += hex_tab.charAt((binarray[i>>2] >> ((i%4)*8+4)) & 0xF) +
	hex_tab.charAt((binarray[i>>2] >> ((i%4)*8 )) & 0xF);
	}
	return str;
}

function binl2b64(binarray)
{
	var tab = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
	var str = "";
	for(var i = 0; i < binarray.length * 4; i += 3)
	{
		var triplet = (((binarray[i >> 2] >> 8 * ( i %4)) & 0xFF) << 16)
		| (((binarray[i+1 >> 2] >> 8 * ((i+1)%4)) & 0xFF) << 8 )
		| ((binarray[i+2 >> 2] >> 8 * ((i+2)%4)) & 0xFF);
		for(var j = 0; j < 4; j++)
		{
			if(i * 8 + j * 6 > binarray.length * 32) str += b64pad;
			else str += tab.charAt((triplet >> 6*(3-j)) & 0x3F);
		}
	}
	return str;
}

function makeMD5() {
	var str = MD5(document.all.PassWord.value);
	str = MD5(str + document.all.challenge.value);
	document.all.PassWord.value = str;
	//return false;
}