[Sab] xsl:include

[rich]

Hi, can anybody say me, what exactly should I do include an xsl file
from the current xsl directiry (<xsl:include>aaa.xsl</xsl:inclue>without specifying 
full path. I've
heard a lot about arg:// construction, but I've ne seen any example.
I'm using sab 0.60 and PHP4.0.5 on NT