[OpenLayers-Users] panel does not appear

[Didrik Pinte]

Hi,

I'm trying to add a panel to my map. 
I have followed the example given here :
http://workshops.opengeo.org/openlayers/intro/doc/en/controls.html

But nothing shows on the map.

The code is the following :

---------------------------------------------------------
    map.addLayer(vector_layer);

    var mypanel = new OpenLayers.Control.Panel({
        //div: document.getElementById("panel"),
        //displayClass: "mypanel"
    });    
    
    var drawctrl = new OpenLayers.Control.DrawFeature(vector_layer,
                        OpenLayers.Handler.Polygon);
    var modctrl = new OpenLayers.Control.ModifyFeature(vector_layer);
    var hist = new OpenLayers.Control.NavigationHistory();

    map.addControl(hist);
    map.addControl(drawctrl);
    map.addControl(modctrl);

    mypanel.addControls([drawctrl, modctrl, hist.next, hist.previous]);
    mypanel.activateControl(drawctrl);

    map.addControl(mypanel);

    map.zoomToMaxExtent();
---------------------------------------------------------

I have tried with a simple EditingToolbar and it appears fine in the
left corner of the map.

What could be wrong ? Firebug lists everything but there is nothing
appearing anywhere.

I am using OpenLayers 2.7.

Thanks in advance for any help.

Didrik
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