copying a url

[Luther Baker]

I am copying a URL to paste into my application:

<a href="
http://www.microsoft.com/downloads/details.aspx?FamilyID=21eabb90-958f-4b64-b5f1-73d0a413c8ef&displaylang=en";>downloads
for each</a>

Tapestry is complaining: The reference to entity "displaylang" must end with
the ';' delimiter.

Is it correct to rewrite the url with &amp;

http://www.microsoft.com/downloads/details.aspx?FamilyID=21eabb90-958f-4b64-b5f1-73d0a413c8ef&amp;displaylang=en";>downloads
for each</a>

It works but I'm not sure if that is the correct way to do this. I am using
xhtml-strict so I assume that is why &displaylang is failing.

Thanks,

-Luther