[Joomla] Fetching the section-id

[sOliver]

[Please move to programming]
Hi,

I'm currently doing a traineeship and I am working on a joomla template.
Now I got to define a different header for every section.

However I am not familiar with joomla database queries and the documentation isn't that good. How would I fetch the section id, so that I can use it on the index.php ?


This is working on the content component:
$this->article->sectionid, but I need it on the index.php


Would appreciate it if anyone could give me a hint or post a useful link ..

Thanks in advance,
Oliver