HTMLInputElement inputElem1 = (HTMLInputElement)doc.getElementById("radioId1");
ItsNatHTMLInputRadio input1 = (ItsNatHTMLInputRadio)componentMgr.findItsNatComponent(inputElem1);
HTMLInputElement inputElem2 = (HTMLInputElement)doc.getElementById("radioId2");
ItsNatHTMLInputRadio input2 = (ItsNatHTMLInputRadio)componentMgr.findItsNatComponent(inputElem2);
HTMLInputElement inputElem3 = (HTMLInputElement)doc.getElementById("radioId3");
ItsNatHTMLInputRadio input3 = (ItsNatHTMLInputRadio)componentMgr.findItsNatComponent(inputElem3);
// Chequeamos que forman ya grupo a trav�s del atributo name
ItsNatButtonGroup itsNatGrp = input1.getItsNatButtonGroup();
ButtonGroup group = itsNatGrp.getButtonGroup();
TestUtil.checkError(input2.getItsNatButtonGroup() == itsNatGrp);