[TYPO3] 'Type'-field defines CE layout

[Robert Markula]

Hi!
I would like to use the 'Type' field ('header_layout' in TS) in content 
elements to define the layout of the content element. To do this I want 
to wrap the whole content element in the FE in a <div class="layout1"> | 
</div> wrap, so I can style the appearence with CSS.
How can I do this with TS so the whole content is preserved (that is, 
the content should stay as it is; only wrapped in a div)?
	
Regards,
Ro