function isokButtonClick() {
	isokButton.style.background = "gray";
	let XMIN = MapData.X_MIN;
	let YMIN = MapData.Y_MIN;
	let XMAX = MapData.X_MAX;
	let YMAX = MapData.Y_MAX;

	


	// let URL = `https://epsg.io/trans?data=${XMIN},${YMIN};${XMAX},${YMAX}&s_srs=2177&t_srs=2180`;stary endpoint
	let URL = `https://api.maptiler.com/coordinates/transform/${XMIN},${YMIN};${XMAX},${YMAX}.json?s_srs=2177&t_srs=2180&key=OZa2pWHGvC94xakI0fVk`;

	fetch(URL, {
		method: "GET",
	})
		.then((response) => response.json())
		.then((data) => {
			let NXMIN = data.results[0].x;
			let NYMIN = data.results[0].y;
			let NXMAX = data.results[1].x;
			let NYMAX = data.results[1].y;

			let newURL = `https://wody.isok.gov.pl/imap_kzgw/?gpmap=gpSIGW&bbox=${NXMIN},${NYMIN},${NXMAX},${NYMAX}`;
			window.open(newURL, "_blank");
			isokButton.style.background = "none";
		});
}