GetUnity() on webplayer not working properly

Hello,

I am having some issues with the function GetUnity() on web player, every way I tried to get the unity web player just returns me an HTML element but I don't have access to its controls.

I need to access it to send messages to Unity via javascript via the unity.sendMessage function as explained in the doc here : http://docs.unity3d.com/Documentation/Manual/UnityWebPlayerandbrowsercommunication.html but it is not defined..

Is there any workarround ?