How do I gain access to my context/atrribute from my BSP code?.

I have a context node named SPAREPART against my View which has a value node attribute named SPARE, defined as a CHAR1 (boolean).

How can I access this value node attribite of the context so that I can use it within a checkbox within my BSP code. I assume that I could both read and write to this attrribute if used in a checkbox.

John Sapora