rem: avp = internal_search_name_avp( avp, avp->id, get_avp_name(avp));
add: avp = internal_search_name_avp( avp->next, avp->id, get_avp_name(avp));
context: struct usr_avp *search_next_avp( struct usr_avp *avp,  int_str *val ){	if (avp==0 || (avp=avp->next)==0)		return 0;	if (avp->flags&AVP_NAME_STR)		avp = internal_search_name_avp( avp, avp->id, get_avp_name(avp));	else		avp = internal_search_ID_avp( avp, avp->id );	if (avp && val)		get_avp_val(avp, val);	return avp;}