q = new Array();

function checkQuizz(obj)
{
	if(sha1Hash(obj.value) == q[obj.id])
	{
		validate1(obj);
	}	else {
		validate2(obj);
	}
}

function validate1(obj)
{
	if(obj.disabled == false)
	{
		obj.style.backgroundColor = '#009900';
	}
}

function validate2(obj)
{
	if(obj.value=='')
	{
		obj.style.backgroundColor = '#0000CC';
	} else {
		obj.style.backgroundColor = '#CC0000';
	}
}

function sha1Hash(msg) {
  var K = [0x5a827999, 0x6ed9eba1, 0x8f1bbcdc, 0xca62c1d6];
  msg += String.fromCharCode(0x80);
  var l = Math.ceil(msg.length/4) + 2;
  var N = Math.ceil(l/16);
  var M = new Array(N);

  for (var i=0; i<N; i++)
  {
    M[i] = new Array(16);
    for (var j=0; j<16; j++)
    {
      M[i][j] = (msg.charCodeAt(i*64+j*4)<<24) | (msg.charCodeAt(i*64+j*4+1)<<16) | 
                (msg.charCodeAt(i*64+j*4+2)<<8) | (msg.charCodeAt(i*64+j*4+3));
    }
  }
  M[N-1][14] = ((msg.length-1) >>> 30) * 8;
  M[N-1][15] = ((msg.length-1)*8) & 0xffffffff;

  var H0 = 0x67452301;
  var H1 = 0xefcdab89;
  var H2 = 0x98badcfe;
  var H3 = 0x10325476;
  var H4 = 0xc3d2e1f0;
  var W = new Array(80); var a, b, c, d, e;
  for (var i=0; i<N; i++)
  {
    for (var t=0;  t<16; t++) W[t] = M[i][t];
    for (var t=16; t<80; t++) W[t] = ROTL(W[t-3] ^ W[t-8] ^ W[t-14] ^ W[t-16], 1);
    a = H0; b = H1; c = H2; d = H3; e = H4;
    for (var t=0; t<80; t++)
    {
			var s = Math.floor(t/20);
			var T = (ROTL(a,5) + f(s,b,c,d) + e + K[s] + W[t]) & 0xffffffff;
			e = d;
			d = c;
			c = ROTL(b, 30);
			b = a;
			a = T;
		}
		H0 = (H0+a) & 0xffffffff;
		H1 = (H1+b) & 0xffffffff; 
		H2 = (H2+c) & 0xffffffff; 
		H3 = (H3+d) & 0xffffffff; 
		H4 = (H4+e) & 0xffffffff;
	}
	return H0.toHexStr() + H1.toHexStr() + H2.toHexStr() + H3.toHexStr() + H4.toHexStr();
}

function f(s, x, y, z) 
{
  switch (s)
  {
    case 0: return (x & y) ^ (~x & z);
    case 1: return x ^ y ^ z;
    case 2: return (x & y) ^ (x & z) ^ (y & z);
    case 3: return x ^ y ^ z;
  }
}

function ROTL(x, n)
{
  return (x<<n) | (x>>>(32-n));
}

Number.prototype.toHexStr = function()
{
  var s="", v;
  for (var i=7; i>=0; i--)
  {
  	v = (this>>>(i*4)) & 0xf; s += v.toString(16);
  }
  return s;
}