// Adds a "Changes since last load" link to your watchlist.  <syntaxhighlight lang="Javascript">



addOnloadHook(function () {

    if (!mw.config.get('wgCanonicalSpecialPageName') || mw.config.get('wgCanonicalSpecialPageName') != "Watchlist") return;

    if (!document.forms0 || !document.forms0].namespace) return;



    var link = document.createElement('a');

    link.id = 'listSince';

    link.href = '#listSince';  // must have a href to show as link!



    var then = +(new Date());

    var fixLinkHref = function () {

        var url = window.location.href.split('#')[0];

        var days = (( +(new Date()) - then ) + (60 * 1000)) / (1000 * 3600 * 24);

        if (url.match(/[?&]days=/))

            this.href = url.replace(/([?&]days=)[^&]*/, '$1'+days);

        else

            this.href = url + (url.indexOf('?') < 0 ? '?':'&') + 'days=' + days;

        return true;

    };

    link.onclick = fixLinkHref;

    link.onmousedown = fixLinkHref;  // react to middle clicks too



    var frag = document.createDocumentFragment();

    frag.appendChild(document.createTextNode(' | '));

    frag.appendChild(link);

    link.appendChild(document.createTextNode('Changes'));

    frag.appendChild(document.createTextNode(' since last load.'));



    // just one little ID attribute would be _so_ nice...

    var nsSelectForm = document.getElementsByTagName('form')[0];

    nsSelectForm.parentNode.insertBefore(frag, nsSelectForm);

});



//</syntaxhighlight>