How do I create a Right-click menu for Firefox?

Question

I am currently designing a site that uses the right mouse button to pop up a "context menu". How do I capture the right mouse button "event" when someone right clicks the screen when using javascript.

Answer 1

Should you consider that the right-mouse button is re-definable?
The event is onmousedown, and the Event.which property tells you which mouse button was pressed.