return mInner.SetHTMLAttribute(nsHTMLAtoms::checked, empty, PR_TRUE);
rv = mInner.SetHTMLAttribute(nsHTMLAtoms::checked, empty, PR_TRUE);
nsHTMLInputElement::SetDefaultChecked(PRBool aDefaultChecked){  nsHTMLValue empty(eHTMLUnit_Empty);  if (aDefaultChecked) {                                                         return mInner.SetHTMLAttribute(nsHTMLAtoms::checked, empty, PR_TRUE);   } else {                                                                mInner.UnsetAttribute(kNameSpaceID_HTML, nsHTMLAtoms::checked, PR_TRUE);                 return NS_OK;                                                     }                                                                 }