This is a floating Bar chart that could be used in order to indicate a range of sorts. It's actually a regular stacked Bar chart but just has the first color set to transparent. The background color has been set to a gradient going from white to slightly gray.
<script src="RGraph.svg.common.core.js"></script> <script src="RGraph.svg.bar.js"></script>Put this where you want the chart to show up:
<div id="chart-container" style="600px; height: 250px; display: inline-block"></div>This is the code that generates the chart: