function listing(property_id,area,status,price,lease_price,type,address,lat,lng,open_house,address_num){
	this.property_id = property_id;
	this.area = area;
	this.status = status;
	this.price = price;
	this.lease_price = lease_price;
	this.type = type;
	this.address = address;
	this.address_num = address_num;
	this.lat = lat;
	this.lng = lng;
	this.open_house = open_house;
}