Adds non editable elements support for MSIE and Mozilla/FF. Any element with the "mceItemNonEditable" class will be blocked from modifications and treated as a single character. This class name is configurable using the "noneditable_noneditable_class". Any elements with the MSIE specific attribute "contenteditable" will be converted into classes instead. Initialization Example
[noneditable_editable_class] Class name to be used for editable elements, this would be the the same as contenteditable=true, forcing a element to be editable. This option defaults to: "mceItemEditable". Notice that classes with the mceItem prefix is invisible within TinyMCE.
[noneditable_noneditable_class] Class name to be used for non editable elements, this would be the same as contenteditable=false. This option defaults to: "mceItemNonEditable". Notice that classes with the mceItem prefix is invisible within TinyMCE.
[noneditable_leave_contenteditable] If the value of this option is set to true, all contenteditable attributes will be left intact. This option is set to false by default, since this attribute is not a valid W3C attribute and the class approach is better.