Problem with DayPilot Calendar in a DNN module

I'm building a DotNetNuke Module using DaypilotCalendar. My problem is that the dynamic comportment is not enable : no bubbles, no possibilities of drag and drop or editing the tasks. I think it is related to the AJAX Script Manager. In order to get the one used by DNN, i use the following code. This code works properly with others AJAX control but not with DayPilotCalendar. Could you help me ? Best regards, Valentin DotNetNuke.Framework.AJAX.RegisterScriptManager(); // Create a reference to the Script Manager ScriptManager objScriptManager = ScriptManager.GetCurrent(this.Page); // Add a reference to the web service ServiceReference objServiceReference = new ServiceReference(); objServiceReference.Path = @"~/DesktopModules/Calendrier_FC/Calendrier_FC.ascx"; objScriptManager.Services.Add(objServiceReference); ScriptReference objScriptReference = new ScriptReference(); objScriptReference.Path = @"~/DesktopModules/Calendrier_FC/Calendrier_FC.ascx.cs"; objScriptManager.Scripts.Add(objScriptReference);