> Hi,
> where is the difference between:
> <xsl:param name="paramname" select="'paramvalue'"/>
> <xsl:param name="paramname">paramvalue</xsl:param>
> 

The first is a string, the second is a result tree fragment.

If you use this RTF in a context where a string is expected, you will get
the same result. However, an RTF probably carries more overhead (depending
on the implementation, of course)

The main observable difference between a string and this RTF is the effect
of boolean(). Converting a string to a boolean gives true unless the string
is empty. Converting an RTF to a boolean always gives true.

Michael Kay