[OpenLayers-Users] TypeError: OpenLayers.Control.EditingToolbar is not a constructor

[Tonton]

I try to add editing tools bare after the map was created

var vlay = this.map_layers[1];
               console.log(vlay);
                var editing = new OpenLayers.Control.EditingToolbar(vlay);
                this.map.addControl(editing);

and systematicaly i had this error message

TypeError: OpenLayers.Control.EditingToolbar is not a constructor

the console. log output :
Object { EVENT_TYPES=[28], options={...}, name="Editable", more...}  is the
layer i want to draw on

What i 'am doing wrong ?
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osgeo.org/pipermail/openlayers-users/attachments/20130627/39826c55/attachment.html>