I tried to do totrial "Finding and Manipulating a Switch and DOF  Node".I 
download the code for findNodeVisitor class and copy the source from tutorial 
which is publicated on site. In code from site it is used:
......
 findNodeVisitor findNode("sw1");

 tankTwoGroup->accept(findNode); 

osgSim::MultiSwitch* tankSwitch = NULL;     tankSwitch = dynamic_cast 
<osgSim::MultiSwitch*> (findNode.getFirst());

but method getFirst() of class findNodeVisitor doesn't exist. I tried do this 
but it gave me error because of impossible cast of type:

osg::Node* findNodeVisitor::getFirst()
{
    return foundNodeList._Myfirst;
}

 
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