title: Dynamically update graph on webpage
body: <p>I have a page where i keep getting data from a database periodically. That data is depicted as a graph. At each period, i want to update the graph with new data. Meaning that i dont want to replace the old graph, but extend it. For example,im using a line chart which is currently displaying. When new data comes in, i want the lines in the chart to extend to represent the new data, but the previous lines should remain as-is. Which JavaScript graphing API can provide this functionality ? Is it possible with Google Charts ?</p>