Does anyone know what is wrong with the following coditional sentence?

<xsl:if test="op:dateTime-greater-than( xs:dateTime('2006-09-11T16:36:00+02:00') , xs:dateTime('2006-09-11T16:35:00+02:00') ) = true">

Thanks for the help.

Tomi.

Functions prefixed "op:" in the XPath 2.0 specs are not for users to call directly, they are a formal device for specifying the behaviour of operators, in this case the > operator.

Also note that the constant "true" must be written "true()", though of course you don't need to write "a > b = true()", you can just write "a > b". So your condition becomes

test="xs:dateTime('2006-09-11T16:36:00+02:00') > xs:dateTime('2006-09-11T16:35:00+02:00')"/>

Michael Kay
http://www.saxonica.com/
Author, XSLT Programmer's Reference and XPath 2.0 Programmer's Reference