// Returns the basename part of path
function Basename(path)
{
    return path.replace( /.*(\/|\\)/, "" );
}

// Calculates Payload hashes using sha256
function Payload()
{
    //$('loadingimage').toggle();
    var f = $('uploadform');
    // Make sure string is in normalized UTF8.
    var filename = nfc(f.files.value);
    //console.log('hashing filename:', filename, Basename(filename), SHA256(Basename(filename)));
    //console.log('hashing key:', f.key.value, SHA256(f.key.value));
    f.hashed_name.value = SHA256(Basename(filename));
    f.hashed_key.value = SHA256(f.key.value);
    return true;
}

// Updates the form with a new generated upload key.
function updateKey()
{
    //console.log('updating key');
    new Ajax.Request('?action=getkey', {
    method:'get',
    onSuccess: function(transport) {
        var response = transport.responseText || '';
        $('uploadform').key.value = response;
        //console.log('new key:', response);
    }
    });
}

// Loads content into the content div
function loadContent( page ) {
    self.document.location.hash = page;
    new Ajax.Updater('content', page, {
        onComplete: function () {
            Effect.ScrollTo('content', { duration: 0.2 });    
        }
    });
    
}

// Initialize some things when the page loads.
document.observe("dom:loaded", function() {
    $('advancedDiv').toggle();
    $('loadingimage').toggle();
    document.uploadform.files.focus();
    var hashvalue = self.document.location.hash.substring(1);
    if (hashvalue != "")
    {
        new Ajax.Updater('content', hashvalue);
    }
});