<script src="RGraph.common.core.js"></script> <script src="RGraph.line.js"></script>Put this where you want the chart to show up:
<canvas id="cvs" width="600" height="250"> [No canvas support] </canvas> <button onclick="change()" style="font-size: 20pt; cursor: pointer"<Change data</button>This is the code that generates the chart - it should be placed AFTER the canvas tag(s):