invoice template and taxnumber

[Janeks <..hidden..>]

Hi!

I am trying to add to invoice template my customer's taxnumber value in 
following way:

<?lsmb if taxnumber ?>
<br>Taxnumber: <?lsmb taxnumber ?>
<?lsmb end taxnumber ?>

Then I got:

Taxnumber: ARRAY(0x94ad424)

Thanks in advance & brgds
Janeks