hi, I'm using Microsoft virtual earth map 6.2 (bing Map) in my application.On map showing number of images.On Each image there is onClick event that select image if user press left mouse button while holding Ctrl key .For this I wrote java-script function where I'm using Window.event.button (To check mouse button) and window.event. ctrlKey(To check control key) But these both are not working in Firefox 4.0 ,the same is working in Firefox 3.6X version perfectly.

Thanks