<script src="../../codebase/dhtmlxchart.js" type="text/javascript"></script>
<link rel="STYLESHEET" type="text/css" href="../../codebase/dhtmlxchart.css">
<script src="../common/testdata.js"></script>
<script>
var barChart1;
window.onload = function() {
    barChart1 = new dhtmlXChart({
        view: "bar",
        container: "chartDiv",
        value: "#sales#",
        label: "#sales#",
        gradient: "rising",
        width: 50,
        radius: 2,
        tooltip: {
            template: "#sales#";
        },
        yAxis: {
            start: 0,
            end: 100,
            step: 10,
            template: function(value) {
                return value % 20 ? "": value;
            }
        },
        xAxis: {
            template: "'#year#";
        }
    });
    barChart1.parse(dataset, "json");
};
var counter = 12;
function addNew() {
    barChart1.add({
        year: counter,
        sales: parseInt(Math.random() * 100, 10);
    });
    counter++;
}
function deleteFirst() {
    barChart1.remove(barChart1.first());
}</script>
 
<div id="chartDiv" style="width:800px;height:250px;border:1px solid #A4BED4;"></div>
 
<input type="button" value="add" onclick="addNew()">
<input type="button" value="delete" onclick="deleteFirst()">