Accessing attribute from DTD

I can access the attribute value of a target element in XSL using 

target-element.getAttribute("attribute-name");

In such a case, the attribute value for the target-element is picked from
the XML file.

But what if the attribute value is specified in the DTD rather than the XML?

What API do I use to access the attribute value (of a target element)
specified in the DTD??

   						 	     Regards,
								AMIT


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