[OpenLayers-Users] MouseWheel Handling

[shitake83]

Hi, 

I've implemented a control so I can handle MouseWheel events, because I want
to implement a certain behaviour when a users moves the mousewheel up/down.

This is my implementation:

*//create a new control//

var zoomControl = new OpenLayers.Control();
OpenLayers.Util.extend(zoomControl, {
        // The draw method is called when the control is initialized
        draw: function () {
            this.mouse= new OpenLayers.Handler.MouseWheel(zoomControl,
{"up":
mouseUp, "down": mouseDown});
            this.mouse.activate();
           
        }});

//add new control

map.addControl(zoomControl);

// change behavior of mouse wheel functions

function mouseUp(){ alert("you have zoomed up");}
function mouseDown(){ alert("you have zoomed down");}
*

The code does what it's supposed to do, however I get an error in the
firebug console, which I really don't like.

*Component returned failure code: 0xc1f30001 (NS_ERROR_NOT_INITIALIZED) *

Has anybody run into an issue/debug message like this and what could the
probable cause be ??
Thanks a lot.


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