i looked at the link: http://brainwallet.org/

witch generate offline wallets for all major coins, i noticed that the same Passphrase generate different [Private Key&Address] pairs for eatch coin type, witch means eatch coin has a public shared id (or salt) added to the mix of the hash, am i right?

so how can i get that public coins key? and how can i edit the javascript to support other scrypt coins?

eatch time i change coin in the menu a function is called, i got that code of the page:

  PUBLIC_KEY_VERSION = parseInt($(this).attr('data-target'));
  PRIVATE_KEY_VERSION = (PUBLIC_KEY_VERSION+128)&255;
  ADDRESS_URL_PREFIX = $(this).attr('href');
 ....
    var eckey = gen_eckey;
    var compressed = gen_compressed;
    var hash_str = pad($('#hash').val(), 64, '0');   
    var hash = Crypto.util.hexToBytes(hash_str);

    var hash160 = eckey.getPubKeyHash();        
    var h160 = Crypto.util.bytesToHex(hash160);
    $('#h160').val(h160);

    var addr = new Bitcoin.Address(hash160);
    addr.version = PUBLIC_KEY_VERSION;

    $('#addr').val(addr);

when addr is the wallet address....

and the data-target for the links are:

bitcoin : 0x00
dogecoin: 0x1E
litecoin: 0x30
namecoin: 0x34
.
.
.

is this is the uniqe identifire of the coin? is if possible? it's just a single byte...

if not than what is?, and if yes how can i get the identifier of other coins, not listed (any way to extract it from the network/wallet software)?

thanks