nl_tokens: Get type item by extension class clsid or mime type .
pl_tokens: function ( value ) { var i , values , typeItem ; // Find type by checking the classes
   values = tinymce . explode ( <mask> , ' ' ) ; for ( i = 0 ; i < values . length ; i ++ ) { typeItem = this . lookup [ values [ i ] ] ; if ( typeItem ) return typeItem ; } }