how can we track mouse events in highcharts

We are trying to use the highcharts renderer library to draw custom shapes like line and arc on the charts we were able to access the starting x and y coordinates via "chart.container.onmousedown" event and end x and y coordinates via "chart.container.onmouseup"

the method is working in Chrome and Mozilla, but giving problem in IE for chart.renderer method

We are successfully using the "chart.renderer.arc" and "chart.renderer.path" in chrome and Mozilla. But not in IE

found similar problem in the link http://hig开发者_如何学Gohslide.com/forum/viewtopic.php?f=9&t=10271

but the solution suggested not working for us.

Any help is appreciated..