code: public void setGlobalVariable(String name, Element value) {
  
  		assert (name != null);
  
  		GlobalVariable gvar = globalVariables.get(name);
  		gvar.setValue(value);
  	}
docs: Set the variable to the given value, preserving the status of the final
  flag. This will unconditionally set the value without checking if the
  value is final; be careful. The value must already exist.