//<pre><nowiki>
 
var wmwpajax;
// From [[WP:US]] mainpage (wpajax renamed to wmwpajax)
wmwpajax={
        download:function(bundle) {
                // mandatory: bundle.url
                // optional:  bundle.onSuccess (xmlhttprequest, bundle)
                // optional:  bundle.onFailure (xmlhttprequest, bundle)
                // optional:  bundle.otherStuff OK too, passed to onSuccess and onFailure
 
                var x = window.XMLHttpRequest ? new XMLHttpRequest()
                : window.ActiveXObject ? new ActiveXObject("Microsoft.XMLHTTP")
                : false;
 
                if (x) {
                        x.onreadystatechange=function() {
                                x.readyState==4 && wmwpajax.downloadComplete(x,bundle);
                        };
                        x.open("GET",bundle.url,true);
                        x.send(null); 
                }
                return x;
        },
 
        downloadComplete:function(x,bundle) {
                x.status==200 && ( bundle.onSuccess && bundle.onSuccess(x,bundle) || true )
                || ( bundle.onFailure && bundle.onFailure(x,bundle) || alert(x.statusText+': '+bundle.url));
        }
};
 
// Example:
// function dlComplete(xmlreq, data) {
//      alert(data.message + xmlreq.responseText);
// }
//  wmwpajax.download({url:'http://en.wikipedia.org/w/index.php?title=Thresher&action=raw', 
//                   onSuccess: dlComplete, message: "Here's what we got:\n\n" });
 
// End of [[WP:US]] quote
 
function wmWatchEditFound(xmlreq, data) {
  var watchrev, watchsum, watchrevold, watchpage, junk;
  var sub = document.getElementById('contentSub');
  if(xmlreq.responseText.indexOf('revid=')==-1)
  {
  	if (sub) {
		 sub.innerHTML+=
		 "<div class='watchlistnotify'>(<i>watchlistnotifier can't determine whether a "+
    	  "watched page has changed<i>)</div>";
  	}
    return;
  }
  watchrev=xmlreq.responseText.split('revid="')[1].split('"')[0];
  try
  {
    watchrevold=document.cookie.split('ais523wmwatchrev=')[1].split('.')[0];
  }
  catch(junk) {watchrevold=0;}
  if( mw.config.get('wgPageName') == "Special:Watchlist")
  {
    document.cookie="ais523wmwatchrev="+watchrev+".; path=/";
    var bodyContent =document.getElementById('bodyContent');
    var ass = bodyContent ? bodyContent.getElementsByTagName('a') : [];
    var i=aas.length;
    while(i--)
    {
      if(aas[i].href.indexOf('diff=')!=-1&&watchrevold)
        if(+(aas[i].href.split('diff=')[1].split('&')[0])>watchrevold)
          aas[i].parentNode.style.fontWeight='bold';
    }
  }
  else
  {
    if (watchsum=xmlreq.responseText.split('comment="')[1])
       watchsum=xmlreq.responseText.split('comment="')[1].split('"')[0];
    else
       watchsum ='';
    watchpage=xmlreq.responseText.split('title="')[1].split('"')[0];
    watchuser=xmlreq.responseText.split('user="')[1].split('"')[0];
    watchrevid=xmlreq.responseText.split('revid="')[1].split('"')[0];
    watchsum=watchsum.split('<').join('&lt;').split('>').join('&gt;');
    watchpage=watchpage.split('<').join('&lt;').split('>').join('&gt;');
    if(watchrev!=watchrevold && sub && typeof msStringU !== 'undefined')
      sub.innerHTML+=
        "<div class='watchlistnotify'>\"" 
        + '<a href="/wiki/' + watchpage + '">' + watchpage + '</a>' 
        + '" ' + msStringU('changed by') + ': ' 
        + '<a href="/wiki/User:' + watchuser + '">' + watchuser + '</a> ' 
        + '(<a href="/wiki/User Talk:' + watchuser + '">' + msStringU('talk') + '</a>)' 
        + '  "' + watchsum + '". ' 
        + '(<a href="' + mw.config.get('wgServer') + mw.config.get('wgScriptPath') + '/index.php?title='
        + watchpage + '&diff=' + watchrevid + '">' + msStringU('diff') + '</a>) '
        + '(<a href="' + mw.config.get('wgServer') + mw.config.get('wgScriptPath') + '/index.php?title=Special:Watchlist">' + msStringU('watchlist') + '</a>)</div>';
  }
}

$(function() {
  /* Find the top item in the watchlist, and its edit summary. We only need one item, so
     set the limit to 1 to ease the load on the server. */
	if ( typeof msActivarModulo === 'undefined') {
		return;
	}
    if (typeof ms_Activa_Watchlistnotifier == 'undefined') { ms_Activa_Watchlistnotifier = true;}
    if (!msActivarModulo(ms_Activa_Watchlistnotifier)) return;
    if (mw.config.get('wgCanonicalNamespace') == "Special" && mw.config.get('wgCanonicalSpecialPageName') == "Watchlist") return;

    wmwpajax.download({url: mw.config.get('wgScriptPath') + '/api.php?action=query&list=watchlist&wllimit=1&'+
      'wldir=older&format=xml&wlprop=comment|ids|title|user', onSuccess: wmWatchEditFound});
});
// </nowiki></pre>