interface HTMLButtonElement : HTMLElement {
 /* IID: { 0xa6cf9095, 0x15b3, 0x11d2, \
  { 0x93, 0x2e, 0x00, 0x80, 0x5f, 0x8a, 0xdd, 0x32 } } */

   readonly attribute  HTMLFormElement      form;
            attribute  DOMString            accessKey;
            attribute  boolean              disabled;
            attribute  DOMString            name;
            attribute  long                 tabIndex;
   readonly attribute  DOMString            type;
            attribute  DOMString            value;
 };

 interface NSHTMLButtonElement {
 /* IID: { 0x6fd344d0, 0x7e5f, 0x11d2, \
  { 0xbd, 0x91, 0x00, 0x80, 0x5f, 0x8a, 0xe3, 0xf4 } } */
   void                      blur();
   void                      focus();

 };