Utilizador:ValJor/monobook.js

 window.AddMyOwnButton=function(tbar, caption, href, imgsrc) {
   var ba = document.createElement('a');
   ba.href = href;
   var img = document.createElement('img');
   img.src = imgsrc;
   img.alt = caption;
   ba.appendChild(img);
   tbar.appendChild(ba);
 }

 window.myOwnEditButtons=function() {
  var tbdiv=document.getElementById('toolbar');
  if ( tbdiv ) {
    tbdiv.appendChild(document.createTextNode(' '));

    // Botao:{vandalismo}
    AddMyOwnButton(tbdiv, 'Aviso ao usuário', 'javascript:document.editform.wpSummary.value=\'\/* Vandalismo */ \';insertTags(\'\=\=\ Vandalismo \=\=\\n\{\{aviso}}\\n\\n\',\'\',\'\');document.editform.submit();', 'http://upload.wikimedia.org/wikipedia/commons/e/e4/Bouton_Vandale3.png');

  }
}

window.myAddOnload=function(f) {
  if (window.addEventListener) window.addEventListener("load", f, false);
  else if (window.attachEvent) window.attachEvent("onload",f);
}

myAddOnload(myOwnEditButtons);