[TYPO3-RTE] RTE - XHTML link without target but rel

[Daniel Huf]

I need to make a valid WAI (AAA) website, but the links from the 
HTMLAREA don't seem to convert the target="_blank" to rel="external".

Is there a way ?

I'm using:

lib.parseFunc.tags.link.typolink.target >
PAGE_TARGET =
styles.content.links.extTarget =
styles.content.links.target =
content.pageFrameObj =
styles.content.mailform.target =
styles.content.searchresult.resultTarget =
styles.content.searchresult.target =


config {
    doctype = xhtml_strict
    doctypeSwitch = 0

    xhtmlDoctype = xhtml_strict	
    xmlprologue = none

    xhtml_cleaning = all
}
[browser = msie] && [version= <7]
    config.doctypeSwitch = 1
[global]

And the TSCONFIG for the RTE

RTE.default.proc.HTMLparser_db {
	xhtml_cleaning = 1
}

even tried :
a.fixAttrib.target.unset = 1
a.allowedAttribs = class, target, id, title

But it didn't work...

Any clue ?
Thanks
Daniel