int i = vars.size();
while (--i >= 0)
{
ElemVariable v = (ElemVariable) vars.elementAt(i);
if (vs.variableIsDeclared(v.getName()))
continue;
// XObject xobj = v.getValue(this, contextNode);
XObject xobj = new XUnresolvedVariable(v, contextNode,
this, vs.getSearchStartOrTop(), 0, true);