yellowFrom:75, yellowTo: 90,
          minorTicks: 5
        };
          
        var data2 = google.visualization.arrayToDataTable([
          ['Label', 'Value'],
          ['S1', <?php 
echo getaveragedelay('10.16.40.111', '1');
?>
],
          ['S2', <?php 
echo getaveragedelay('10.16.40.112', '1');
?>
],
          ['S3', <?php 
echo getaveragedelay('10.16.40.113', '1');
?>
]
        ]);

        var options2 = {
          width: 400, height: 120,
          redFrom: 4, redTo: 5,
          yellowFrom:2, yellowTo: 4,
          minorTicks: 2,
            min:-5,
            max:5
        };
          

        var chart1 = new google.visualization.Gauge(document.getElementById('chart_div'));
        var options3 = {
          width: 400, height: 120,
          redFrom: 90, redTo: 100,
          yellowFrom:75, yellowTo: 90,
          minorTicks: 5
        };
          
        var data4 = google.visualization.arrayToDataTable([
          ['Label', 'Value'],
          ['DNS1', <?php 
echo getaveragedelay('10.16.25.13', '1');
?>
],
          ['DNS2', <?php 
echo getaveragedelay('10.16.25.15', '1');
?>
]
        ]);

        var options4 = {
          width: 400, height: 120,
          redFrom: 4, redTo: 5,
          yellowFrom:2, yellowTo: 4,
          minorTicks: 2,
            min:-5,
            max:5
        };

        var chart3 = new google.visualization.Gauge(document.getElementById('dns_loss'));
        var chart4 = new google.visualization.Gauge(document.getElementById('dns_delay'));