Method Definition: render (Function onRenderCompleted)
Parent: Chart
Description: update() function used to update more than one chart-properties at one short
chart.render() must be called to initiate the internal drawing of the Chart. render() function must be called after updating any parameter of Chart or any chart-element using setProperty() or update() function.
var chart = new Cosfire.Chart("chart-container", {....});
// Set Data
chart.setDate([...]);
chart.render(function onRenderCompleted() {
// chart rendered
}));