Q:

Set default image in FILES renderObj with FAL

the following typoscript searches a random subpage and renders the first image which is referenced in the media field. It works. But i need a default image when the media field is empty. 
page.10 = COA_INT
page.10 {
  10 = CONTENT
  10 {
    table = pages
    select {
      orderBy = rand()
      max = 1
      pidInList = 34
    }

    renderObj = COA
    renderObj {

      5 = FILES 
      5 {
        references {
          table = pages
          uid.data = current:uid
          fieldName = media
        }
        begin = 0
        maxItems = 1
        renderObj = IMAGE
        renderObj {
          file.import.data = file:current:publicUrl
        }
      }
    }
  }
}

I tried with 
file = fileadmin/....
file.import.data = file:current:publicUrl
file.treatIdAsReference = 1

or 
file.import.ifEmpty = fileadmin/....

or whith override but it seems that the whole FILES-Object is empty when there is no file in field media and so ifEmpty is not reached. 
Can anybody give me a hint?  
Edit: 
TYPO3 6.2

A:

pgampe gave me the right hint - override or ifEmpty have to start one level up: 
5.stdWrap.ifEmpty.cObject = IMAGE
5.stdWrap.ifEmpty.cObject {
      file = fileadmin/ .....
      file.height = 200c
      file.width  = 200c
}

