diff -r 000000000000 -r d970ebf37754 wp/wp-admin/js/accordion.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/wp/wp-admin/js/accordion.js	Wed Nov 06 03:21:17 2013 +0000
@@ -0,0 +1,55 @@
+( function( $ ){
+
+	$( document ).ready( function () {
+
+		// Expand/Collapse on click
+		$( '.accordion-container' ).on( 'click keydown', '.accordion-section-title', function( e ) {
+			if ( e.type === 'keydown' && 13 !== e.which ) // "return" key
+					return;
+			e.preventDefault(); // Keep this AFTER the key filter above
+
+			accordionSwitch( $( this ) );
+		});
+
+		// Re-initialize accordion when screen options are toggled
+		$( '.hide-postbox-tog' ).click( function () {
+			accordionInit();
+		});
+
+	});
+
+	var accordionOptions = $( '.accordion-container li.accordion-section' ),
+		sectionContent   = $( '.accordion-section-content' );
+
+	function accordionInit () {
+		// Rounded corners
+		accordionOptions.removeClass( 'top bottom' );
+		accordionOptions.filter( ':visible' ).first().addClass( 'top' );
+		accordionOptions.filter( ':visible' ).last().addClass( 'bottom' ).find( sectionContent ).addClass( 'bottom' );
+	}
+
+	function accordionSwitch ( el ) {
+		var section = el.closest( '.accordion-section' ),
+			siblings = section.closest( '.accordion-container' ).find( '.open' ),
+			content = section.find( sectionContent );
+
+		if ( section.hasClass( 'cannot-expand' ) )
+			return;
+
+		if ( section.hasClass( 'open' ) ) {
+			section.toggleClass( 'open' );
+			content.toggle( true ).slideToggle( 150 );
+		} else {
+			siblings.removeClass( 'open' );
+			siblings.find( sectionContent ).show().slideUp( 150 );
+			content.toggle( false ).slideToggle( 150 );
+			section.toggleClass( 'open' );
+		}
+
+		accordionInit();
+	}
+
+	// Initialize the accordion (currently just corner fixes)
+	accordionInit();
+
+})(jQuery);