Xorshift03.js

// From http://baagoe.com/en/RandomMusings/javascript/
function Xorshift03() {
  return (function(args) {
    // George Marsaglia, 13 May 2003
    // http://groups.google.com/group/comp.lang.c/msg/e3c4ea1169e463ae
    var x = 123456789,
        y = 362436069,
        z = 521288629,
        w = 88675123,
        v = 886756453;

    if (args.length == 0) {
      args = [+new Date];
    }
    var mash = Mash();
    for (var i = 0; i < args.length; i++) {
      x ^= mash(args[i]) * 0x100000000; // 2^32
      y ^= mash(args[i]) * 0x100000000;
      z ^= mash(args[i]) * 0x100000000;
      v ^= mash(args[i]) * 0x100000000;
      w ^= mash(args[i]) * 0x100000000;
    }
    mash = null;

    var uint32 = function() {
      var t = (x ^ (x >>> 7)) >>> 0;
      x = y;
      y = z;
      z = w;
      w = v;
      v = (v ^ (v << 6)) ^ (t ^ (t << 13)) >>> 0;
      return ((y + y + 1) * v) >>> 0;
    }

    var random = function() {
      return uint32() * 2.3283064365386963e-10; // 2^-32
    };
    random.uint32 = uint32;
    random.fract53 = function() {
      return random() +
        (uint32() & 0x1fffff) * 1.1102230246251565e-16; // 2^-53
    };
    random.version = 'Xorshift03 0.9';
    random.args = args;
    return random;

  } (Array.prototype.slice.call(arguments)));
};