一个很基础的DWR示例集合，将演示如何实现基于DWR的异步调用-DWR based on a sample collection, will demonstrate how to implement asynchronous calls on DWR

Parameters container: HTML element in which the SVG will be inserted data: Array of <DataObject> to be plotted in the piechart. startingDeg (optional) : Number of degrees on which the first slice will be plotted. onMouseEn