right click context menu on a sprite element

[ganesh239]

On a sprite element, I am NOT able to capture the right click mouse event.
I am able to capture the click, mouseover, mouseout events.

I tried catching the mouse down event and checking if e.button = '2', but e.button returns undefined.
What am I missing ?

var sprite = new Ext.draw.Sprite({
                    id: nodeId,
                    type: 'image',
                    src:  imgUrl,
                    width: 50,
                    height: 50,
                    x: xPos,
                    y: yPos,
                    fill: '#0f0',


                    //draggable: true,
                    listeners: {
                        click: function(e) {
                        },
                        rightclick: function(e) {


                        },
                         contextmenu: function(e) {


                        },
                        mousedown: function(e) {
                                e.button;
                        }
 }


               });

[ganesh239]

Pls help on this.