[TYPO3] dynamically change header layout from extension

[Krystian Szymukowicz]

hi

I'd like to change header layout depending on some values in extension.

This line in Template Setup works as expected:

lib.stdheader.10.1.fontTag= 
<h3{register:headerStyle}{register:headerClass}>|</h3>


but as I said I am trying to make it dynamically from extension if 
certain condition is met. I do something like this:


$GLOBALS['TSFE']->tmpl->setup['lib.']['stdheader.']['10.']['1.']['fontTag'] 
= '<h3{register:headerStyle}{register:headerClass}>|</h3>';

or

$GLOBALS['TSFE']->tmpl->setup['tt_content.']['header.']['10.']['1.']['fontTag'] 
= '<h3{register:headerStyle}{register:headerClass}>|</h3>';


but it has no effect :(


Any hint where can be the problem?


thank you

-- 
grtz
Krystian