Problem jQuery in CI 2.0

[eluser]aataqwa[/eluser]
whether the value of csrf_token_name in the hidden text will keep its value forever ?

Code:

<div class="hidden">
&lt;input type="hidden" name="csrf_token_name" value="123456789abcabcabc" /&gt;
</div>

// CSRF
        if ($CI->config->item('csrf_protection') === TRUE)
        {
            $hidden[$CI->security->csrf_token_name] = $CI->security->csrf_hash;
        }

please enlightenment about the value csrf_token_name ??