>If (@lineID/5)=round number -> <td><xsl:value-of select="@lineID"/>
>Else -> <td></td>

>Can anyone help me and tell me what the xsl should be? Much appreciated.

Don't forget about mod - that trusty old friend.

	<xsl:choose>
		<xsl:when test="@lineID mod 5 = 0">
			. . . 
			<xsl:value-of select="@lineID"/>
			. . .
		</xsl:when>
		<xsl:otherwise>
			. . .
		</xsl:otherwise>
	</xsl:choose>

Good luck!

Also, take a look at the FAQ pages for many good hints on various subjects
in XSLT (just follow the link at the bottom of all messages on the list).


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