Chart HTML Page

<html><head><title>chart</title>
<script type="text/javascript" src="https://www.google.com/jsapi?autoload={'modules':[{'name':'visualization','version':'1','packages':['corechart']}]}"></script>
<button id="change-chart"></button><script type="text/javascript"> google.setOnLoadCallback(drawChart);
var button = document.getElementById('change-chart');function drawChart() {var data = google.visualization.arrayToDataTable([
['Local Time', 'Temperature C', 'Temperature F', 'Pressure'],
[new Date(1483824360000),24.48,76.07,1004.50],
[new Date(1483824363000),24.48,76.06,1004.45],
[new Date(1483824366000),24.48,76.07,1004.47],
[new Date(1483824370000),24.49,76.08,1004.52],
[new Date(1483824373000),24.48,76.06,1004.42],
[new Date(1483824377000),24.48,76.06,1004.48],
[new Date(1483824380000),24.48,76.07,1004.47],
[new Date(1483824383000),24.49,76.09,1004.48],
[new Date(1483824387000),24.49,76.08,1004.52],
[new Date(1483824390000),24.49,76.08,1004.46],
[new Date(1483824394000),24.49,76.09,1004.51],
[new Date(1483824397000),24.49,76.09,1004.54],
[new Date(1483824400000),24.49,76.09,1004.57],
[new Date(1483824404000),24.50,76.10,1004.56],
[new Date(1483824407000),24.49,76.09,1004.48],
[new Date(1483824411000),24.50,76.10,1004.50],
[new Date(1483824414000),24.52,76.14,1004.58],
[new Date(1483824417000),24.51,76.12,1004.56],
[new Date(1483824421000),24.50,76.10,1004.53],
]);
function drawChartCelsius() {var tempCview = new google.visualization.DataView(data);
    tempCview.setColumns([0,1]);
    chart.draw(tempCview, optionsCelsius);
    button.innerText = 'Change to Fahrenheit';
    button.onclick = drawChartFahrenheit;}
function drawChartFahrenheit() {var tempFview = new google.visualization.DataView(data);
    tempFview.setColumns([0,2]);
    chart.draw(tempFview, optionsFahrenheit);
    button.innerText = 'Change to Pressure';
    button.onclick = drawChartPressure;}
function drawChartPressure() {var tempPressureView = new google.visualization.DataView(data);
    tempPressureView.setColumns([0,3]);
    chart.draw(tempPressureView, optionsPressure);
    button.innerText = 'Change to Celsius';
    button.onclick = drawChartCelsius;}
var formatter = new google.visualization.DateFormat({ formatType: 'short',timeZone: 0});
  formatter.format(data, 0);
// Set X-Axis Labels
var xTicks = [];
for (var i = 0; i < data.getNumberOfRows(); i++) {
   xTicks.push({
    v: data.getValue(i, 0),
    f: data.getFormattedValue(i, 0) });
}
var optionsPressure = {'height': 320,chartArea:{top:20, height:"60%"},hAxis:{gridlines:{color:'transparent'},ticks:xTicks,slantedText: true,slantedTextAngle :70,textStyle:{fontSize: 11} },vAxis:{format:"##,### mb"},series:{1:{curveType:'function'},0:{color:'orange'}},legend:{position: 'none'},title:'Pressure in Millibars' };
var optionsCelsius = {'height': 320,chartArea:{top:20,  height:"60%"},hAxis:{gridlines:{color:'transparent'},ticks:xTicks,slantedText: true,slantedTextAngle :70,textStyle:{fontSize: 11} },vAxis:{format:"##.## �C"},series:{1:{curveType:'function'},0:{color:'red'}},legend:{position: 'none'},title:'Temperature in Celsius' };
var optionsFahrenheit = {'height': 320,chartArea:{top:20, height:"60%"},hAxis:{gridlines:{color:'transparent'},ticks:xTicks,slantedText: true,slantedTextAngle :70,textStyle:{fontSize: 11} },vAxis:{format:"##.## �F"},series:{0:{curveType: 'function'},0:{color:'Blue'}},legend:{position: 'none'},title: 'Temperature in Fahrenheit'};
var chart = new google.visualization.LineChart(document.getElementById('curve_chart'));drawChartCelsius();}
</script>
<font color="#000000"><body><meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=yes">
<h1>Temperature and Pressure Chart</h1><a href="/">back</a><BR><BR>
<div id="curve_chart" style="width: 800px; height: 300px"></div><BR><BR>Number of readings=19<BR>Max allowed readings=936<BR><BR><BR>First reading at : <BR>Most recent reading : <BR></body></html>

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