void addAssociatedComponentAt(int index,Component cmp){
  if (comps == null) {
    comps=new Vector();
  }
  comps.insertElementAt(cmp,index);
}

void addAssociatedComponentAt ( int index , Component cmp ) { if ( comps == null ) { comps = new Vector ( ) ; } comps . insertElementAt ( cmp , index ) ; }
adds the given component to be associated with this element . this is used internally to apply css styling .
