Index: wp-content/themes/twentytwelve/js/navigation.js
===================================================================
--- wp-content/themes/twentytwelve/js/navigation.js	(revision 21615)
+++ wp-content/themes/twentytwelve/js/navigation.js	(working copy)
@@ -3,27 +3,28 @@
  *
  * Handles toggling the navigation menu for small screens.
  */
+
 ( function() {
-    var button = document.getElementById( 'site-navigation' ).getElementsByTagName( 'h3' )[0],
-        menu   = document.getElementById( 'site-navigation' ).getElementsByTagName( 'ul' )[0];
+	var button = document.getElementById( 'site-navigation' ).getElementsByTagName( 'h3' )[0],
+		menu   = document.getElementById( 'site-navigation' ).getElementsByTagName( 'ul' )[0];
 
-    if ( undefined == button || undefined == menu )
-    	return false;
+	if ( undefined == button || undefined == menu )
+		return false;
 
-    button.onclick = function() {
-        if ( -1 == menu.className.indexOf( 'nav-menu' ) )
-            menu.className = 'nav-menu';
+	button.onclick = function() {
+		if ( -1 == menu.className.indexOf( 'nav-menu' ) )
+			menu.className = 'nav-menu';
 
-        if ( -1 != button.className.indexOf( 'toggled-on' ) ) {
-            button.className = button.className.replace( ' toggled-on', '' );
-            menu.className = menu.className.replace( ' toggled-on', '' );
-        } else {
-            button.className += ' toggled-on';
-            menu.className += ' toggled-on';
-        }
-    };
+		if ( -1 != button.className.indexOf( 'toggled-on' ) ) {
+			button.className = button.className.replace( ' toggled-on', '' );
+			menu.className = menu.className.replace( ' toggled-on', '' );
+		} else {
+			button.className += ' toggled-on';
+			menu.className += ' toggled-on';
+		}
+	};
 
-    // Hide menu toggle button if menu is empty.
-    if ( ! menu.childNodes.length )
-        button.style.display = 'none';
+	// Hide menu toggle button if menu is empty.
+	if ( ! menu.childNodes.length )
+		button.style.display = 'none';
 } )();
\ No newline at end of file