UseVector

window.onload = function UseVector() {
    var li = document.createElement('li');
    var query = '';
    for(i in location.href.split('?')) {
        if(location.href.split('?')[i].split('=')[0] == 'title') {
            for(j = 1; j < location.href.split('?')[i].split('&').length; j++) {
                if(location.href.split('?')[i].split('&')[j].split('=')[0] != 'useskin') {query += '&' + location.href.split('?')[i].split('&')[j];}
            }
        }
    }
    if(skin == 'oasis') {
        li.innerHTML = '<a href="/index.php?title=' + wgPageName + query + '&useskin=vector">Vector</a>'
        document.getElementById('AccountNavigation').insertBefore(li, document.getElementById('AccountNavigation').firstChild);
    }
    if(skin == 'vector') {
        var url = '';
        var urlquery = '';
        var quot = '';
        var title = '';
        for(i = 0; i < document.getElementsByTagName('a').length; i++) {
            url = document.getElementsByTagName('a')[i].href;
            urlquery = '';
            if(url.indexOf('?') != -1) {
                quot = url.split('?');
                for(j in quot) {
                    if(quot[j].split('=')[0] == 'title') {
                        title = quot[j].split('=')[1].split('&')[0];
                        for(k = 1; k < quot[j].split('&').length; k++) {
                            if(quot[j].split('&')[k].split('=')[0] != 'useskin') {urlquery += '&' + quot[j].split('&')[k];}
                        }
                    }
                }
            }
            else {
                title = url.split('.')[url.split('.').length - 1].substring(url.split('.')[url.split('.').length - 1].indexOf('/', 4) + 1, url.length);
            }
            document.getElementsByTagName('a')[i].href = '/index.php?title=' + title + urlquery + '&useskin=vector';
        }

        li.innerHTML = '<a href="/wiki/' + wgPageName + query + '"><span>Oasis</span></a>'
        document.getElementById('p-namespaces').getElementsByTagName('ul')[0].appendChild(li);
    }
}