MediaWiki talk:Common.js

if (mwCustomEditButtons) {

  mwCustomEditButtons[mwCustomEditButtons.length] = {
    "imageFile": "http://www.koreanwikiproject.com/wiki/images/Button_mp3.png",
    "speedTip": "Comment visible only for editors",
    "tagOpen": "",
    "sampleText": "Insert comment here"}
 }