// JavaScript Document


        var hexcase = 0;  /* hex output format. 0 - lowercase; 1 - uppercase        */
        var b64pad = ""; /* base-64 pad character. "=" for strict RFC compliance   */
        var chrsz = 8;  /* bits per input character. 8 - ASCII; 16 - Unicode      */
        function hex_md5(s) { return binl2hex(core_md5(str2binl(s), s.length * chrsz)); }
        function b64_md5(s) { return binl2b64(core_md5(str2binl(s), s.length * chrsz)); }
        function str_md5(s) { return binl2str(core_md5(str2binl(s), s.length * chrsz)); }
        function hex_hmac_md5(key, data) { return binl2hex(core_hmac_md5(key, data)); }
        function b64_hmac_md5(key, data) { return binl2b64(core_hmac_md5(key, data)); }
        function str_hmac_md5(key, data) { return binl2str(core_hmac_md5(key, data)); }
        function md5_vm_test() { return hex_md5("abc") == "900150983cd24fb0d6963f7d28e17f72"; }
        function core_md5(x, len) {
            /* append padding */
            x[len >> 5] |= 0x80 << ((len) % 32);
            x[(((len + 64) >>> 9) << 4) + 14] = len;

            var a = 1732584193;
            var b = -271733879;
            var c = -1732584194;
            var d = 271733878;

            for (var i = 0; i < x.length; i += 16) {
                var olda = a;
                var oldb = b;
                var oldc = c;
                var oldd = d;

                a = md5_ff(a, b, c, d, x[i + 0], 7, -680876936);
                d = md5_ff(d, a, b, c, x[i + 1], 12, -389564586);
                c = md5_ff(c, d, a, b, x[i + 2], 17, 606105819);
                b = md5_ff(b, c, d, a, x[i + 3], 22, -1044525330);
                a = md5_ff(a, b, c, d, x[i + 4], 7, -176418897);
                d = md5_ff(d, a, b, c, x[i + 5], 12, 1200080426);
                c = md5_ff(c, d, a, b, x[i + 6], 17, -1473231341);
                b = md5_ff(b, c, d, a, x[i + 7], 22, -45705983);
                a = md5_ff(a, b, c, d, x[i + 8], 7, 1770035416);
                d = md5_ff(d, a, b, c, x[i + 9], 12, -1958414417);
                c = md5_ff(c, d, a, b, x[i + 10], 17, -42063);
                b = md5_ff(b, c, d, a, x[i + 11], 22, -1990404162);
                a = md5_ff(a, b, c, d, x[i + 12], 7, 1804603682);
                d = md5_ff(d, a, b, c, x[i + 13], 12, -40341101);
                c = md5_ff(c, d, a, b, x[i + 14], 17, -1502002290);
                b = md5_ff(b, c, d, a, x[i + 15], 22, 1236535329);

                a = md5_gg(a, b, c, d, x[i + 1], 5, -165796510);
                d = md5_gg(d, a, b, c, x[i + 6], 9, -1069501632);
                c = md5_gg(c, d, a, b, x[i + 11], 14, 643717713);
                b = md5_gg(b, c, d, a, x[i + 0], 20, -373897302);
                a = md5_gg(a, b, c, d, x[i + 5], 5, -701558691);
                d = md5_gg(d, a, b, c, x[i + 10], 9, 38016083);
                c = md5_gg(c, d, a, b, x[i + 15], 14, -660478335);
                b = md5_gg(b, c, d, a, x[i + 4], 20, -405537848);
                a = md5_gg(a, b, c, d, x[i + 9], 5, 568446438);
                d = md5_gg(d, a, b, c, x[i + 14], 9, -1019803690);
                c = md5_gg(c, d, a, b, x[i + 3], 14, -187363961);
                b = md5_gg(b, c, d, a, x[i + 8], 20, 1163531501);
                a = md5_gg(a, b, c, d, x[i + 13], 5, -1444681467);
                d = md5_gg(d, a, b, c, x[i + 2], 9, -51403784);
                c = md5_gg(c, d, a, b, x[i + 7], 14, 1735328473);
                b = md5_gg(b, c, d, a, x[i + 12], 20, -1926607734);

                a = md5_hh(a, b, c, d, x[i + 5], 4, -378558);
                d = md5_hh(d, a, b, c, x[i + 8], 11, -2022574463);
                c = md5_hh(c, d, a, b, x[i + 11], 16, 1839030562);
                b = md5_hh(b, c, d, a, x[i + 14], 23, -35309556);
                a = md5_hh(a, b, c, d, x[i + 1], 4, -1530992060);
                d = md5_hh(d, a, b, c, x[i + 4], 11, 1272893353);
                c = md5_hh(c, d, a, b, x[i + 7], 16, -155497632);
                b = md5_hh(b, c, d, a, x[i + 10], 23, -1094730640);
                a = md5_hh(a, b, c, d, x[i + 13], 4, 681279174);
                d = md5_hh(d, a, b, c, x[i + 0], 11, -358537222);
                c = md5_hh(c, d, a, b, x[i + 3], 16, -722521979);
                b = md5_hh(b, c, d, a, x[i + 6], 23, 76029189);
                a = md5_hh(a, b, c, d, x[i + 9], 4, -640364487);
                d = md5_hh(d, a, b, c, x[i + 12], 11, -421815835);
                c = md5_hh(c, d, a, b, x[i + 15], 16, 530742520);
                b = md5_hh(b, c, d, a, x[i + 2], 23, -995338651);

                a = md5_ii(a, b, c, d, x[i + 0], 6, -198630844);
                d = md5_ii(d, a, b, c, x[i + 7], 10, 1126891415);
                c = md5_ii(c, d, a, b, x[i + 14], 15, -1416354905);
                b = md5_ii(b, c, d, a, x[i + 5], 21, -57434055);
                a = md5_ii(a, b, c, d, x[i + 12], 6, 1700485571);
                d = md5_ii(d, a, b, c, x[i + 3], 10, -1894986606);
                c = md5_ii(c, d, a, b, x[i + 10], 15, -1051523);
                b = md5_ii(b, c, d, a, x[i + 1], 21, -2054922799);
                a = md5_ii(a, b, c, d, x[i + 8], 6, 1873313359);
                d = md5_ii(d, a, b, c, x[i + 15], 10, -30611744);
                c = md5_ii(c, d, a, b, x[i + 6], 15, -1560198380);
                b = md5_ii(b, c, d, a, x[i + 13], 21, 1309151649);
                a = md5_ii(a, b, c, d, x[i + 4], 6, -145523070);
                d = md5_ii(d, a, b, c, x[i + 11], 10, -1120210379);
                c = md5_ii(c, d, a, b, x[i + 2], 15, 718787259);
                b = md5_ii(b, c, d, a, x[i + 9], 21, -343485551);

                a = safe_add(a, olda);
                b = safe_add(b, oldb);
                c = safe_add(c, oldc);
                d = safe_add(d, oldd);
            }
            return Array(a, b, c, d);

        }

        function md5_cmn(q, a, b, x, s, t) { return safe_add(bit_rol(safe_add(safe_add(a, q), safe_add(x, t)), s), b); }
        function md5_ff(a, b, c, d, x, s, t) { return md5_cmn((b & c) | ((~b) & d), a, b, x, s, t); }
        function md5_gg(a, b, c, d, x, s, t) { return md5_cmn((b & d) | (c & (~d)), a, b, x, s, t); }
        function md5_hh(a, b, c, d, x, s, t) { return md5_cmn(b ^ c ^ d, a, b, x, s, t); }
        function md5_ii(a, b, c, d, x, s, t) { return md5_cmn(c ^ (b | (~d)), a, b, x, s, t); }

        function core_hmac_md5(key, data) {
            var bkey = str2binl(key);
            if (bkey.length > 16) bkey = core_md5(bkey, key.length * chrsz);

            var ipad = Array(16), opad = Array(16);
            for (var i = 0; i < 16; i++) {
                ipad[i] = bkey[i] ^ 0x36363636;
                opad[i] = bkey[i] ^ 0x5C5C5C5C;
            }

            var hash = core_md5(ipad.concat(str2binl(data)), 512 + data.length * chrsz);
            return core_md5(opad.concat(hash), 512 + 128);
        }

        function safe_add(x, y) {
            var lsw = (x & 0xFFFF) + (y & 0xFFFF);
            var msw = (x >> 16) + (y >> 16) + (lsw >> 16);
            return (msw << 16) | (lsw & 0xFFFF);
        }

        function bit_rol(num, cnt) { return (num << cnt) | (num >>> (32 - cnt)); }
        function str2binl(str) {
            var bin = Array();
            var mask = (1 << chrsz) - 1;
            for (var i = 0; i < str.length * chrsz; i += chrsz)
                bin[i >> 5] |= (str.charCodeAt(i / chrsz) & mask) << (i % 32);
            return bin;
        }
        function binl2str(bin) {
            var str = "";
            var mask = (1 << chrsz) - 1;
            for (var i = 0; i < bin.length * 32; i += chrsz)
                str += String.fromCharCode((bin[i >> 5] >>> (i % 32)) & mask);
            return str;
        }

        function binl2hex(binarray) {
            var hex_tab = hexcase ? "0123456789ABCDEF" : "0123456789abcdef";
            var str = "";
            for (var i = 0; i < binarray.length * 4; i++) {
                str += hex_tab.charAt((binarray[i >> 2] >> ((i % 4) * 8 + 4)) & 0xF) +
           hex_tab.charAt((binarray[i >> 2] >> ((i % 4) * 8)) & 0xF);
            }
            return str;
        }

        function binl2b64(binarray) {
            var tab = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
            var str = "";
            for (var i = 0; i < binarray.length * 4; i += 3) {
                var triplet = (((binarray[i >> 2] >> 8 * (i % 4)) & 0xFF) << 16)
                | (((binarray[i + 1 >> 2] >> 8 * ((i + 1) % 4)) & 0xFF) << 8)
                | ((binarray[i + 2 >> 2] >> 8 * ((i + 2) % 4)) & 0xFF);
                for (var j = 0; j < 4; j++) {
                    if (i * 8 + j * 6 > binarray.length * 32) str += b64pad;
                    else str += tab.charAt((triplet >> 6 * (3 - j)) & 0x3F);
                }
            }
            return str;
        }

        /*********************************************************************************************************************************************************/

        function validazione(objform) {
            /* CREA LA CHIAVE CRITTOGRAFATA */
            var str = ""
            if (objform.Clienti__RagSoc.value.length > 4)
                str = objform.Clienti__RagSoc.value.substr(objform.Clienti__RagSoc.value.length - 4, 4);
            else
                str = objform.Clienti__RagSoc.value;
            objform.Password.value = hex_md5(objform.User.value + 'c4ca4238a0b923820dcc509a6f75849b' + str);   /* inserire la codifica MD5 della password dell'utente */
            return true;
        }