11     init: function( editor ) {  argument
12         editor.addCommand( 'same_header', {
13             exec: function( editor ) {  argument
14                 var lastH = getLastHeader(editor);
17                 editor.applyStyle(style);
20         editor.addCommand( 'lower_header', {
21             exec: function( editor ) {  argument
22                 var lastH = getLastHeader(editor),
33                 editor.applyStyle(style);
36         editor.addCommand( 'higher_header', {
37             exec: function( editor ) {  argument
38                 var lastH = getLastHeader(editor),
49                 editor.applyStyle(style);
52         editor.addCommand( 'none_header', {
53             exec: function( editor ) {  argument
55                 editor.applyStyle(style);
59         editor.ui.addButton('same_header', {
60             label: editor.lang.headerbuttons.same,
65         editor.ui.addButton('lower_header', {
66             label: editor.lang.headerbuttons.lower,
71         editor.ui.addButton('higher_header', {
72             label: editor.lang.headerbuttons.higher,
77         editor.ui.addButton('none_header', {
78             label: editor.lang.headerbuttons.remove,
87 function getLastHeader( editor ) {  argument
92     var selection = editor.getSelection();