[Typo3] params and field

[Nikolas Hagelstein]

hi,
i wonder if there is another way to make typo3
parsing fields within the params attribute.
i am currently using something like this
(last 2 lines)
-----
      10 = IMAGE
	10.file.import = uploads/tx_templavoila/
	10.file.import.current = 1
	10.file.import.listNum = 0
      .
      . 
      .	
      10.params =class={field:field_align}
      10.stdWrap.insertData = 1
-------

Regards,
			Niko