# A Line chart using the hide() / show() methods

This is a Line chart making use of the hide() and show() methods.

This goes in the documents header:

    <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><br />

    <button onclick="line.hidden(0) ? line.show(0) : line.hide(0)">hide or show the red line</button>
    <button onclick="line.hidden(1) ? line.show(1) : line.hide(1)">hide or show the green line</button>

This is the code that generates the chart - it should be placed AFTER the canvas tag(s):