Calling a target from within a target and passing arguments...

[Santoshi, Vishal]

Is it possible to call a target from within another target and pass in
arguments to the called target ?
 
Or 
 
Is this possible?
 
<target A>
<!-- depends on args x and y -->
</target>
 
<target B>
 <!-- calls target A with two arguments that are intercepted by target A
as x and y-->
</target>