function initialize()

in js/reveal.js [237:287]
26 lines of code
6 McCabe index (conditional complexity)

	function initialize( options ) {

		checkCapabilities();

		if( !features.transforms2d && !features.transforms3d ) {
			document.body.setAttribute( 'class', 'no-transforms' );

			// Since JS won't be running any further, we load all lazy
			// loading elements upfront
			var images = toArray( document.getElementsByTagName( 'img' ) ),
				iframes = toArray( document.getElementsByTagName( 'iframe' ) );

			var lazyLoadable = images.concat( iframes );

			for( var i = 0, len = lazyLoadable.length; i < len; i++ ) {
				var element = lazyLoadable[i];
				if( element.getAttribute( 'data-src' ) ) {
					element.setAttribute( 'src', element.getAttribute( 'data-src' ) );
					element.removeAttribute( 'data-src' );
				}
			}

			// If the browser doesn't support core features we won't be
			// using JavaScript to control the presentation
			return;
		}

		// Cache references to key DOM elements
		dom.wrapper = document.querySelector( '.reveal' );
		dom.slides = document.querySelector( '.reveal .slides' );

		// Force a layout when the whole page, incl fonts, has loaded
		window.addEventListener( 'load', layout, false );

		var query = Reveal.getQueryHash();

		// Do not accept new dependencies via query config to avoid
		// the potential of malicious script injection
		if( typeof query['dependencies'] !== 'undefined' ) delete query['dependencies'];

		// Copy options over to our config object
		extend( config, options );
		extend( config, query );

		// Hide the address bar in mobile browsers
		hideAddressBar();

		// Loads the dependencies and continues to #start() once done
		load();

	}