[Typo3] Back image button

["Jesús H."]

Hello list,

I am trying to create a back button with a static image that goes to the 
parent item.

Tobias Erlacher gave me this code to do a TEXT back button that goes to 
the parent item:

backlink =  TEXT
backlink.data = leveltitle : -2
backlink.insertData = 1
backlink.typolink.parameter.data=leveluid : -2


But I can't figure out how to implement that wrapping an image like:

imagentop = COA
imagentop.5 = IMAGE
imagentop.5.file = fileadmin/assets/arrow_left.jpg


Does anybody have an idea how could I wrap that image just with the link 
of the parent item?

Thanks in advance for any help,

Jesús H.