yandex map get placemark coordinates, открытие placemark извне

ymaps.ready(init);
function init(){
	var placemarks=[];
	var myMap=new ymaps.Map("places_map",{
		center:[59.952236, 30.299258],
		zoom:16,
		controls:['zoomControl']
	});
	Placemark=new ymaps.Placemark([59.952236, 30.299258],{
		balloonContent:'address 1',
		hintContent:'name 1',
	},{
		preset:'islands#redDotIcon'
	});
	placemarks[1]=Placemark;
	myMap.geoObjects.add(Placemark);
	Placemark=new ymaps.Placemark([59.924406, 30.385793],{
		balloonContent:'address 2',
		hintContent:'name 2',
	},{
		preset:'islands#redDotIcon'
	});
	placemarks[2]=Placemark;
	myMap.geoObjects.add(Placemark);
	Placemark=new ymaps.Placemark([59.952236, 30.299258],{
		balloonContent:'address 3',
		hintContent:'name 3',
	},{
		preset:'islands#redDotIcon'
	});
	placemarks[3]=Placemark;
	myMap.geoObjects.add(Placemark);
	myMap.behaviors.disable('scrollZoom');
	$('.places_map .places .item').on('click',function(){
		$('.places_map .places .item').removeClass('active');
		$(this).addClass('active');
		$('.places_map .places').addClass('closed');
		var cid=$(this).data('id');
		myMap.setCenter(placemarks[cid].geometry.getCoordinates());
		//placemarks[cid].balloon.open();
	});
}