MediaWiki:Common.js

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// Auto-insert logo centralnie nad stroną
$(document).ready(function() {
    // sprawdź, czy logo już istnieje
    if ($('#mw-logo').length === 0) {
        var logo = $('<a>', {
            id: 'mw-logo',
            href: mw.util.getUrl('Main_Page'),
            css: {
                display: 'block',
                margin: '20px auto',
                width: '150px',
                height: '50px',
                background: 'url(/images/portallogo.png) no-repeat center',
                backgroundSize: 'contain',
                zIndex: 1000
            }
        });
        // wstaw logo na początek headera
        $('#mw-header').prepend(logo);
    }
});