MediaWiki:Common.js

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/* Any JavaScript on this page will be loaded for all users on every page load. */

/* Replace namespace text with badges */
// Get current namespace and page name
var namespaceCur = mw.config.get('wgCanonicalNamespace');
var pagenameCur = mw.config.get('wgTitle');

// Get the page title element
var firstHeading = document.getElementById('firstHeading');

// If the page is not in mainspace, replace the namespace text with a badge
if (namespaceCur != '') {
    firstHeading.innerHTML = pagenameCur;
    firstHeading.insertAdjacentHTML('afterbegin',
    '<div class="namespace-badge ns-' + namespaceCur + '">' + namespaceCur.split('_').join(' ').toUpperCase() + ':</span>');
}