[Typo3] beforeImgTagParams with alt and title

[Søren Schaffstein]

Hello!
 
I have created a TMENU for a language selection on a page. The menu consists
of a graphic of the country flag (taken from the page where the link leads).
To have the menu done according to the accessibility guidelines I must
include a title-attribute for the a- and img-tag as well as an alt-attribute
for the image tag. 

The problem is the img-Tag. (Please find code below.) I can't get the
attributes there. The line containing "beforeImgTagParams" does not work in
the way I have written it, since beforeImgTagParams is not of type stdWrap.
I have just included it to show what I need to do.

I am working on this for hours now... So any help is greatly appreciated!
Any ideas? Workarounds?

    # Place flags first
    20 = HMENU
    20.1 = TMENU
    20.1.wrap = <div id="language-flags"> | </div>
    20.1 {
      NO {        
        doNotShowLink = 1
        doNotLinkIt = 0
        beforeImgLink = 1
        beforeImg.import = uploads/media/
        beforeImg.import.field = media
        beforeImg.import.listNum = 0

        beforeImgTagParams.dataWrap = title="{field:subtitle}"
alt="{field:subtitle}"

        after = &nbsp;
        ATagTitle.data = field:subtitle

      }
    }


Thanks in advance.
Soeren