//
// Cryptage MD5
//

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;
}

function add(x, y) {
	return ((x&0x7FFFFFFF) + (y&0x7FFFFFFF)) ^ (x&0x80000000) ^ (y&0x80000000);
}

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)), 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)), 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)), 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)), B);
}

function calcMD5(sInp) {
	wLen = (((sInp.length + 8) >> 6) + 1) << 4;
	var X = new Array(wLen);
	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] += sInp.charCodeAt(j + i * 4) << (j * 8);
		}
	}
	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;
	a = 0x67452301; b = 0xefcdab89; c = 0x98badcfe; d = 0x10325476;
	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);
}

//
// Récupération valeur cookie
//
function getCookieVal(offset) {
	var endstr=document.cookie.indexOf (";", offset);
	if (endstr==-1) endstr=document.cookie.length;
	return unescape(document.cookie.substring(offset, endstr));
}

function LireCookie(nom) {
	var arg=nom+"=";
	var alen=arg.length;
	var clen=document.cookie.length;
	var i=0;
	while (i<clen) {
		var j=i+alen;
		if (document.cookie.substring(i, j)==arg) return getCookieVal(j);
		i=document.cookie.indexOf(" ",i)+1;
		if (i==0) break;
	}
	return null;
}

//
// Cryptage mot de passe login avec sid
//

function encrypt( sid , widgetclear, widgetcrypted ) {
	if( widgetclear.value) {
		widgetcrypted.value = calcMD5( sid + widgetclear.value );
		widgetclear.value = "";
	}
}

function login_connect(login_form)
{
	if (login_form['_login[username]'].value && login_form['_login[password]'].value)
	{
		login_form['_login[password_crypt]'].value = calcMD5(LireCookie('PHPSESSID') + login_form['_login[password]'].value);
		login_form['_login[password]'].value = "";
		login_form.submit();
	}
	else
		return false;
}