It might be not obvious but is common practice to use util:GetString(string, default).
A xsl:choose used to display the title of an item can be replaced as follows:
<xsl:choose>
<xsl:when test="sc:fld('menutitle',.)">
<xsl:value-of select="sc:fld('menutitle',.)">
</xsl:when>
<xsl:when test="sc:fld('title',.)">
<xsl:value-of select="sc:fld('title',.)">
</xsl:when>
<xsl:otherwise>
<xsl:value-of select="./@name">
</xsl:otherwise>
</xsl:choose>
simpler call:
<xsl:value-of select="util:GetString(util:GetString(sc:fld('title',.), sc:fld('menutitle',.)),@name)"/>
