grin/2368004-IrvineCreekatIrvineStreet,Salem.html

	<!DOCTYPE html>
	<meta charset='UTF-8'>
	<html>
	<head>
	<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">
	<title>Station: Irvine Creek at Irvine Street, Salem</title>
	</head>
	<body onload="init_page()">
	<h1>Irvine Creek at Irvine Street, Salem</h1>
	<form action="https://waterdata.grandriver.ca/KiWIS/KiWIS?service=kisters&type=queryServices&request=gettimeseriesvalues&datasource=0&format=html&header=true">
		<input type="hidden" name="service" value="kisters">
		<input type="hidden" name="type" value="queryServices">
		<input type="hidden" name="request" value="getTimeSeriesValues">
		<input type="hidden" name="datasource" value="0">
		<input type="hidden" name="header" value="true">
		<input type="hidden" name="format" value="html">
		<div class="form-row">
			<div class="col-sm-2">
				<input type="date" class="form-control gestern" name="from" value="2018-01-01"><br />
			</div>
			<div class="col-sm-2">
				<input type="date" class="form-control heute" name="to" value="2018-01-01"><br />
			</div>
			<div class="col-sm-2">
				<input type="submit" class="form-control" value="Send">
			</div>
		</div>
		<hr />
		
	</div>
	</form>
	</body>
	<script>
	function set_date_value(field_class, datum) {
		var field = document.querySelector(field_class);
		field.value = datum.toISOString().split('T')[0];
	}

	function init_page() {
		var heute, heute_field, gestern, gestern_field;

		heute = new Date();
		set_date_value('.heute', heute);
		// heute_field = document.querySelector('.heute');
		// heute_field.value = heute.toISOString().split('T')[0];

		gestern = new Date(heute - 86400000);
		set_date_value('.gestern', gestern);
		// gestern_field = document.querySelector('.gestern');
		// gestern_field.value = gestern.toISOString().split('T')[0];


		// console.log("heute  : "+heute);
		// console.log("heute feld: "+ heute_field);
		// console.log("gestern: " + gestern);
		// console.log("gestern feld: " + gestern_field);
	}
	</script>
	</html>