[VE][25] Error [25]: inside a string ?!?

Validating http://karisart.se/?flik=0&lan=sv
Error [25]: "general entity X not defined and no default entity"


Lots of errors of this type!

   1. /Line 33
      <http://validator.w3.org/check?uri=http%3A%2F%2Fkarisart.se%2F%3Fflik%3D0%26lan%3Dsv&charset=%28detect+automatically%29&doctype=Inline&ss=1&group=0#line-33>,
      Column 17/: general entity "lan" not defined and no default entity .

      |<a href="?flik=0&*l*an=sv" OnMouseOver="window.status = copyright + '   '; return|

      This is usually a cascading error caused by a an undefined entity
      reference or use of an unencoded ampersand (&) in an URL or body
      text. See the previous message for further details.

   2.   /Line 33
      <http://validator.w3.org/check?uri=http%3A%2F%2Fkarisart.se%2F%3Fflik%3D0%26lan%3Dsv&charset=%28detect+automatically%29&doctype=Inline&ss=1&group=0#line-33>,
      Column 20/: reference to entity "lan" for which no system
      identifier could be generated .

      |<a href="?flik=0&lan*=*sv" OnMouseOver="window.status = copyright + '   '; return |

      This is usually a cascading error caused by a an undefined entity
      reference or use of an unencoded ampersand (&) in an URL or body
      text. See the previous message for further details.


And the error is about text inside a string!
It is all argument to php-script "?flik=0&lan=sv"
That cant be an error?

And here is the line!
<a href="?flik=0&lan=sv" OnMouseOver="window.status = copyright + ' '; 
return true;">
<img src="bild/KarisArtStudioLogga.png" width=175 alt="Hem" hspace=3 
vspace=0 border=0>
</a>


-- 
73 dé SM7JQB Bengt
http://sm7jqb.se <http://http://sm7jqb.se>