function attach_info_window(map, marker, events, infowindow) {

	/*
	 * https://developers.google.com/maps/documentation/javascript/infowindows
	 * https://stackoverflow.com/questions/11106671/google-maps-api-multiple-markers-with-infowindows
	 */

	let window_content = `
		<div id="infowindow_limits">
			<div class="infowindow">
				<div class="infowindow_head">
					<p>${events[0].location.address}</p>
					<div id="infowindow_close" onclick="g_infowindow.close()"></div>
				</div>
	`;
	for (key in events) {
		window_content += `
				<a class="infowindow_body" href="${events[key].url}">
					<p>${events[key].title}</p>
				</a>
		`;
	};
	window_content += `
			</div>
		</div>
	`;

	marker.addListener('click', () => {

		let view_center = map.getCenter();
		// height must be half css value (mp_info_windows.css -> '--size: XXXpx;')
		let window_offset = { width: 0, height: 275 };

		infowindow.setOptions({
			//disableAutoPan: true,
			disableAutoPan: false,
			content: window_content,

			/* dimensions */
			//maxWidth: 400,
			//minWidth: 400,

			/* center window */
			position: view_center,
			pixelOffset: window_offset,

			//shouldFocus: false,
		});

		infowindow.open(map);
	});

}

/*
	event					: {}
		- heure_de_debut	: "";
		- heure_de_fin		: "";
		- categorie			: "";
		- date				: "";
		- pays				: "";
		- ville				: "";
		- adresse			: "";
		- prenom			: "";
		- nom				: "";
		- irl				: bool;
		- id				: x;
		- index				: x (default null);
		- title				: "";
		- url				: "";
		- location			: {}
			- street		: "";
			- city			: "";
			- country		: "";
			- address		: "";
			- approximate	: bool;
			- coordinates	: {}
				- lat		: x;
				- lng		: x;
*/