function showNavigation(id)
{
    /// {{{

    if (document.getElementById)
    {
        obj = document.getElementById('subnavigation' + id);
    }

    if (obj)
    {
        hideNavigation();
        obj.style.display = 'block';
    }

    /// }}}
}


function hideNavigation()
{
    /// {{{

    if (document.getElementsByTagName)
    {
        var elements = document.getElementsByTagName('ul');
    }

    if (typeof elements == 'undefined')
    {
        return;
    }

    for (i = 0; i < elements.length; i++)
    {
        if (elements[i].className.match(/inactive/))
        {
            elements[i].style.display = 'none';
        }
    }

    /// }}}
}


function insertMail()
{
    /// {{{

    if (document.getElementsByTagName)
    {
        var elements = document.getElementsByTagName('a');
    }

    if (typeof elements == 'undefined')
    {
        return;
    }

    var mail = getMail();

    for (i = 0; i < elements.length; i++)
    {
        if (elements[i].className.match(/mail/))
        {
            elements[i].href = mail;
        }
    }

    /// }}}
}


function getMail()
{
    /// {{{

    var mail = ['m', 'a', 'i', 'l', 't', 'o', ':', 'm', 'a', 'i', 'l', '@', 'o', 'k', 'e', 'a', 'n', 'o', 's', '-', 's', 't', 'i', 'f', 't', 'u', 'n', 'g', '.', 'o', 'r', 'g'];

    var result = '';

    for (var i = 0; i < mail.length; i++)
    {
        result += mail[i];
    }


    return result;

    /// }}}
}

window.onload = function()
{
    insertMail();
}