Title Tag in validation image

Hello
In the code to place the validation image, i think that would be great put also title tag; because in mozilla's firefox is the one that people sees. I add the title tag and the longdesc tag, to make it better. 
 
I think that is much better like this:
<p>    <a href="http://validator.w3.org/check?uri=referer" ><img        src="http://www.w3.org/Icons/valid-xhtml10"        alt="Valid XHTML 1.0 Transitional" title="Valid XHTML 1.0 Transitional" longdesc="http://www.w3c.es/" height="31" width="88" /></a></p>
 
Thank you for reading this e-mail.
 
María Laura Morsetti Porres
Zaragoza, España
 
Pd: Sorry for my english.
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