# Combining more than two Line chart objects with multiple Y axes

This demonstration shows how you can use the drawing API Y-axis object to draw multiple axes on your chart.

This goes in the documents header:

    <script src="RGraph.common.core.js"></script>
    <script src="RGraph.common.dynamic.js"></script>
    <script src="RGraph.common.key.js"></script>
    <script src="RGraph.common.tooltips.js"></script>
    <script src="RGraph.common.key.js"></script>
    <script src="RGraph.drawing.yaxis.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>

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

    <script>
        var marginLeft = 180,
            marginRight = 40,
            marginTop   = 25;

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