code: public void setUseAttributeSets(Vector v)
    {
  
      int n = v.size();
  
      m_attributeSetsNames = new QName[n];
  
      for (int i = 0; i < n; i++)
      {
        m_attributeSetsNames[i] = (QName) v.elementAt(i);
      }
    }
docs: Set the "use-attribute-sets" attribute.
  Attribute sets are used by specifying a use-attribute-sets
  attribute on xsl:element, xsl:copy (see [7.5 Copying]) or
  xsl:attribute-set elements. The value of the use-attribute-sets
  attribute is a whitespace-separated list of names of attribute
  sets. Each name is specified as a QName, which is expanded as
  described in [2.4 Qualified Names].
  
  @param v The value to set for the "use-attribute-sets" attribute.