/***************************************************************************
 *  Copyright (C) 2003-2006 Polytechnique.org                              *
 *  http://opensource.polytechnique.org/                                   *
 *                                                                         *
 *  This program is free software; you can redistribute it and/or modify   *
 *  it under the terms of the GNU General Public License as published by   *
 *  the Free Software Foundation; either version 2 of the License, or      *
 *  (at your option) any later version.                                    *
 *                                                                         *
 *  This program is distributed in the hope that it will be useful,        *
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of         *
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the          *
 *  GNU General Public License for more details.                           *
 *                                                                         *
 *  You should have received a copy of the GNU General Public License      *
 *  along with this program; if not, write to the Free Software            *
 *  Foundation, Inc.,                                                      *
 *  59 Temple Place, Suite 330, Boston, MA  02111-1307  USA                *
 ***************************************************************************/

document.write('<script language="javascript" src="{rel}/javascript/md5.js"></script>');
document.write('<script language="javascript" src="{rel}/javascript/sha1.js"></script>');

{literal}
function hash_encrypt(a) {
    return hex_sha1(a);
}

var hexa_h = "0123456789abcdef";

function dechex(a) {
    return hexa_h.charAt(a);
}

function hexdec(a) {
    return hexa_h.indexOf(a);
}

function hash_xor(a, b) {
    var c,i,j,k;
    c = "";
    i = a.length;
    j = b.length;
    if (i < j) {
        var d;
        d = a; a = b; b = d;
        k = i; i = j; j = k;
    }
    for (k = 0; k < j; k++)
        c += dechex(hexdec(a.charAt(k)) ^ hexdec(b.charAt(k)));
    for (; k < i; k++)
        c += a.charAt(k);
    return c;
}
{/literal}