var points_tourbieres={
    "type": "FeatureCollection",
    "features": [{
            "geometry": 
                {"type":"Point","coordinates":[1.424325,42.803827]} 
            ,
	            "id": 1,
	            "type": "Feature","properties": {
	                "nom_tourbiere": "Bernadouze"
	            }
	        },{
            "geometry": 
                {"type":"Point","coordinates":[-0.093249,43.083884]} 
            ,
	            "id": 2,
	            "type": "Feature","properties": {
	                "nom_tourbiere": "Col d'Ech"
	            }
	        }]}