Values in attributes

I want to put an <xsl:value-of> in an html attribute, but it is impossible
because the xml will not be well formed. Is there any way to do this?

For example, with this piece of xml code:

<city>
 <name>Sevilla</name>
</city>

generate this outputs in HTML:

<a href="cities.php?city=Sevilla">Sevilla</a>

Thanks in advance

--
Francisco de Asis Franco Eslava

 XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list