title: Google Charts API get graph object from div
body: <p>I have drawn several graphs on my webpage using the Google Charts API. If i want to clear them, i can use the chart's clearChart() method. But lets say i have a div with id="mydiv" which has a line chart drawn in it. To clear it, i would have to first get the chart objectcand then call clearChart(). But how do i get the chart object ?</p>