How?

I don't know, but it will definitely not work anymore in the summary message. Only pure wiki code, but not HTML, is possible there, due to a change in the software. But you can ask on IRC on #wikimedia-tech for assistance on this. --Thogo 17 jun 2009, 13.35 (CEST)Beäntwurdzje

Thank you. It's nothing we hadn't already noticed ourselves, but at least it's actual contact.
The main problem four years ago was the need to know what div is guaranteed to be at the bottom of the edit field.
At the time, I solved it this way because I could not find that information. I was hoping that by the time the developers warned us that things were going to change again, that information would be generally available. But if it is, I can't find it. Aliter 17 jun 2009, 21.03 (CEST)Beäntwurdzje
if(wgAction == 'edit' || wgAction == 'submit') addOnloadHook(addSummaryButtons)
function addSummaryButtons() {
  var frm = document.getElementById('editform');
  var sum = document.getElementById('wpSummaryLabel');
  if(!sum || !frm || !sum.firstChild) return
  var chars = ['\u00E1','\u00E2','\u00E9','\u00EA','\u00ED','\u00EE','\u00F3','\u00F4','\u00FA','\u00FB'];

  var div = document.createElement('div');
  for(var i=0;i<chars.length;i++) {
    var input = document.createElement('input');
    input.setAttribute('type','button');
    input.setAttribute('value',chars[i]);
    input.onclick = function() { insertTags(this.value,'','') };
    div.appendChild(input);
  }
  sum.insertBefore(div,sum.firstChild);
}
This could be put into MediaWiki:Common.js/edit.js and something like
if(wgAction == 'edit' || wgAction == 'submit') importScript('MediaWiki:Common.js/edit.js')
into MediaWiki:Common.js. But MediaWiki:Edittools I believe is guaranteed to be at the bottom of all edit pages now, and can do the same thing. Splarka 18 jun 2009, 01.46 (CEST)Beäntwurdzje
Thanks. That'll sure make things easier to reimplement. Aliter Continued on Splarka's talk page. Aliter