var newMap = 0;

function openMap(longitude, latitude) {

	if(newMap)
  	{
    if(!newMap.closed) newMap.close();
  	}

	newMap = window.open("maps.htm?long=" + longitude + "&lat=" + latitude, "newMap", "width=660,height=700,menubar=yes,resizable=no,scrollbars=yes,toolbar=no,fullscreen=no");
}