MediaWiki:Common.js

// if more Navigation Bars found and not template namespace than Default: hide all
	var initiallyToggle	= showDefaultCount < NavFrames.length && mw.config.get( 'wgNamespaceNumber' ) !== 10;
	for (var i=0; i<NavFrames.length; i++) {
		var NavFrame = NavFrames[i];
		var NavToggle = document.createElement("a");
		NavToggle.className = 'NavToggle';
		NavToggle.setAttribute('href', '#');

		var NavToggleText = document.createTextNode(textHide);
		NavToggle.appendChild(NavToggleText);

		// add NavToggle-Button as first div-element
		// in < div class="NavFrame" >
		NavFrame.insertBefore(NavToggle, NavFrame.firstChild);

		NavToggle.onclick = toggleNavigationBarFunction(NavToggle, NavFrame);
		if (initiallyToggle) {
			toggleNavigationBar(NavToggle, NavFrame);
		} else { // make sure that 'display' is always set for every NavFrame
			for (
					var NavChild = NavFrame.firstChild;
					NavChild !== null;
					NavChild = NavChild.nextSibling
				) {
				if (NavChild.className === 'NavPic' || NavChild.className === 'NavContent') {
					NavChild.style.display = 'block';
				}
			}
		}
	}
})});