Frederic, Thank you for your help and pointers.
I doubt that blockUI will help in preventing an element to be deleted from an editable area. After further thoughts, I will try to prevent img deletion only (maybe I will convert any special XML element to an image on the server side before serving it to the browser). Do I only need to process keyboard events (backspace, delete, ctrl +x ...) or am I missing something obvious ? Regards, Olivier.
