function showNewsLngField(theUnit) {
	get_object('div_nws_field_'+activeUnit).style.display='none';
	get_object('div_nws_flap_'+activeUnit).className='nws_flap_off';
	get_object('div_nws_field_'+theUnit).style.display='block';
	get_object('div_nws_flap_'+theUnit).className='nws_flap_on';
	activeUnit=theUnit;
}