User:Masao/monobook.js

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// This script is under public domain, and comes with ABSOLUTELY NO WARRANTY.
// You can use/modify/redistribute without any permission.
 
var submitchecker_enterpressed = false;
 
function install_submitchecker() {
  var f = document.getElementById("editform");
  if(f) {
    var s = document.getElementById("wpSummary");
    if(s.addEventListener) s.addEventListener("keydown", submitchecker_key, false);
    else if(s.attachEvent) s.attachEvent("onkeydown", submitchecker_key);
    if(f.addEventListener) f.addEventListener("submit", submitchecker, false);
    else if(f.attachEvent) f.attachEvent("onsubmit", submitchecker);
  }
}
function submitchecker(e) {
  if(submitchecker_enterpressed) {
    submitchecker_enterpressed = false;
    if(!confirm("Are you sure you want to submit your changes?")) {
      if(e.preventDefault) e.preventDefault();
      else if(window.event) event.returnValue = false;
      return false;
    }
  }
  return true;
}
function submitchecker_key(e) {
  if(window.event) e = event;
  if(e && e.keyCode == 13) submitchecker_enterpressed = true;
  return true;
}
addOnloadHook(install_submitchecker);