<script language="javascript">
<!--
/**********************************************************

* md5.js
*
* a javascript implementation of the rsa data security, inc. md5
* message-digest algorithm.
*
* copyright (c) paul johnston 1999. distributed under the lgpl.
***********************************************************/

/* to convert strings to a list of ascii values */
var sascii = " !\"#$%&'()*+,-./0123456789:;<=>?@abcdefghijklmnopqrstuvwxyz"
var sascii = sascii + "[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~";

/* convert integer to hex string */
var shex = "0123456789abcdef";
function hex(i)
{
h = "";
for(j = 0; j <= 3; j++)
{
h += shex.charat((i >> (j * 8 + 4)) & 0x0f) +
shex.charat((i >> (j * 8)) & 0x0f);
}
return h;
}

/* add, handling overflows correctly */
function add(x, y)
{
return ((x&0x7fffffff) + (y&0x7fffffff)) ^ (x&0x80000000) ^ (y&0x80000000);
}

/* md5 rounds functions */
function r1(a, b, c, d, x, s, t)
{
q = add(add(a, (b & c) | (~b & d)), add(x, t));
return add((q << s) | ((q >> (32 - s)) & (math.pow(2, s) - 1)), b);
}

function r2(a, b, c, d, x, s, t)
{
q = add(add(a, (b & d) | (c & ~d)), add(x, t));
return add((q << s) | ((q >> (32 - s)) & (math.pow(2, s) - 1)), b);
}

function r3(a, b, c, d, x, s, t)
{
q = add(add(a, b ^ c ^ d), add(x, t));
return add((q << s) | ((q >> (32 - s)) & (math.pow(2, s) - 1)), b);
}

function r4(a, b, c, d, x, s, t)
{
q = add(add(a, c ^ (b | ~d)), add(x, t));
return add((q << s) | ((q >> (32 - s)) & (math.pow(2, s) - 1)), b);
}

/* main entry point */
function calcmd5(sinp) {

/* calculate length in machine words, including padding */
wlen = (((sinp.length + 8) >> 6) + 1) << 4;
var x = new array(wlen);

/* convert string to array of words */
j = 4;
for (i = 0; (i * 4) < sinp.length; i++)
{
x[i] = 0;
for (j = 0; (j < 4) && ((j + i * 4) < sinp.length); j++)
{
x[i] += (sascii.indexof(sinp.charat((i * 4) + j)) + 32) << (j * 8);
}
}

/* append padding bits and length */
if (j == 4)
{
x[i++] = 0x80;
}
else
{
x[i - 1] += 0x80 << (j * 8);
}
for(; i < wlen; i++) { x[i] = 0; }
x[wlen - 2] = sinp.length * 8;

/* hard-coded initial values */
a = 0x67452301;
b = 0xefcdab89;
c = 0x98badcfe;
d = 0x10325476;

/* process each 16-word block in turn */
for (i = 0; i < wlen; i += 16) {
ao = a;
bo = b;
co = c;
do = d;

a = r1(a, b, c, d, x[i+ 0], 7 , 0xd76aa478);
d = r1(d, a, b, c, x[i+ 1], 12, 0xe8c7b756);
c = r1(c, d, a, b, x[i+ 2], 17, 0x242070db);
b = r1(b, c, d, a, x[i+ 3], 22, 0xc1bdceee);
a = r1(a, b, c, d, x[i+ 4], 7 , 0xf57c0faf);
d = r1(d, a, b, c, x[i+ 5], 12, 0x4787c62a);
c = r1(c, d, a, b, x[i+ 6], 17, 0xa8304613);
b = r1(b, c, d, a, x[i+ 7], 22, 0xfd469501);
a = r1(a, b, c, d, x[i+ 8], 7 , 0x698098d8);
d = r1(d, a, b, c, x[i+ 9], 12, 0x8b44f7af);
c = r1(c, d, a, b, x[i+10], 17, 0xffff5bb1);
b = r1(b, c, d, a, x[i+11], 22, 0x895cd7be);
a = r1(a, b, c, d, x[i+12], 7 , 0x6b901122);
d = r1(d, a, b, c, x[i+13], 12, 0xfd987193);
c = r1(c, d, a, b, x[i+14], 17, 0xa679438e);
b = r1(b, c, d, a, x[i+15], 22, 0x49b40821);

a = r2(a, b, c, d, x[i+ 1], 5 , 0xf61e2562);
d = r2(d, a, b, c, x[i+ 6], 9 , 0xc040b340);
c = r2(c, d, a, b, x[i+11], 14, 0x265e5a51);
b = r2(b, c, d, a, x[i+ 0], 20, 0xe9b6c7aa);
a = r2(a, b, c, d, x[i+ 5], 5 , 0xd62f105d);
d = r2(d, a, b, c, x[i+10], 9 , 0x2441453);
c = r2(c, d, a, b, x[i+15], 14, 0xd8a1e681);
b = r2(b, c, d, a, x[i+ 4], 20, 0xe7d3fbc8);
a = r2(a, b, c, d, x[i+ 9], 5 , 0x21e1cde6);
d = r2(d, a, b, c, x[i+14], 9 , 0xc33707d6);
c = r2(c, d, a, b, x[i+ 3], 14, 0xf4d50d87);
b = r2(b, c, d, a, x[i+ 8], 20, 0x455a14ed);
a = r2(a, b, c, d, x[i+13], 5 , 0xa9e3e905);
d = r2(d, a, b, c, x[i+ 2], 9 , 0xfcefa3f8);
c = r2(c, d, a, b, x[i+ 7], 14, 0x676f02d9);
b = r2(b, c, d, a, x[i+12], 20, 0x8d2a4c8a);

a = r3(a, b, c, d, x[i+ 5], 4 , 0xfffa3942);
d = r3(d, a, b, c, x[i+ 8], 11, 0x8771f681);
c = r3(c, d, a, b, x[i+11], 16, 0x6d9d6122);
b = r3(b, c, d, a, x[i+14], 23, 0xfde5380c);
a = r3(a, b, c, d, x[i+ 1], 4 , 0xa4beea44);
d = r3(d, a, b, c, x[i+ 4], 11, 0x4bdecfa9);
c = r3(c, d, a, b, x[i+ 7], 16, 0xf6bb4b60);
b = r3(b, c, d, a, x[i+10], 23, 0xbebfbc70);
a = r3(a, b, c, d, x[i+13], 4 , 0x289b7ec6);
d = r3(d, a, b, c, x[i+ 0], 11, 0xeaa127fa);
c = r3(c, d, a, b, x[i+ 3], 16, 0xd4ef3085);
b = r3(b, c, d, a, x[i+ 6], 23, 0x4881d05);
a = r3(a, b, c, d, x[i+ 9], 4 , 0xd9d4d039);
d = r3(d, a, b, c, x[i+12], 11, 0xe6db99e5);
c = r3(c, d, a, b, x[i+15], 16, 0x1fa27cf8);
b = r3(b, c, d, a, x[i+ 2], 23, 0xc4ac5665);

a = r4(a, b, c, d, x[i+ 0], 6 , 0xf4292244);
d = r4(d, a, b, c, x[i+ 7], 10, 0x432aff97);
c = r4(c, d, a, b, x[i+14], 15, 0xab9423a7);
b = r4(b, c, d, a, x[i+ 5], 21, 0xfc93a039);
a = r4(a, b, c, d, x[i+12], 6 , 0x655b59c3);
d = r4(d, a, b, c, x[i+ 3], 10, 0x8f0ccc92);
c = r4(c, d, a, b, x[i+10], 15, 0xffeff47d);
b = r4(b, c, d, a, x[i+ 1], 21, 0x85845dd1);
a = r4(a, b, c, d, x[i+ 8], 6 , 0x6fa87e4f);
d = r4(d, a, b, c, x[i+15], 10, 0xfe2ce6e0);
c = r4(c, d, a, b, x[i+ 6], 15, 0xa3014314);
b = r4(b, c, d, a, x[i+13], 21, 0x4e0811a1);
a = r4(a, b, c, d, x[i+ 4], 6 , 0xf7537e82);
d = r4(d, a, b, c, x[i+11], 10, 0xbd3af235);
c = r4(c, d, a, b, x[i+ 2], 15, 0x2ad7d2bb);
b = r4(b, c, d, a, x[i+ 9], 21, 0xeb86d391);

a = add(a, ao);
b = add(b, bo);
c = add(c, co);
d = add(d, do);
}
return hex(a) + hex(b) + hex(c) + hex(d);
}

alert(hex("123456"))
//-->
</script>