diff --git a/wp-admin/admin-ajax.php b/wp-admin/admin-ajax.php
index 7e28ad7179..e004908f62 100644
--- a/wp-admin/admin-ajax.php
+++ b/wp-admin/admin-ajax.php
@@ -508,7 +508,7 @@ case 'add-link-category' : // On the Fly
 	$x->send();
 	break;
 case 'add-tag' :
-	check_ajax_referer( 'add-tag' );
+	check_ajax_referer( 'add-tag', '_wpnonce_add-tag' );
 	$post_type = !empty($_POST['post_type']) ? $_POST['post_type'] : 'post';
 	$taxonomy = !empty($_POST['taxonomy']) ? $_POST['taxonomy'] : 'post_tag';
 	$tax = get_taxonomy($taxonomy);
diff --git a/wp-admin/custom-background.php b/wp-admin/custom-background.php
index 28eec84e8e..62ebacf48f 100644
--- a/wp-admin/custom-background.php
+++ b/wp-admin/custom-background.php
@@ -237,7 +237,6 @@ if ( get_background_image() ) {
 <input type="hidden" name="action" value="save" />
 <?php wp_nonce_field('custom-background-upload', '_wpnonce-custom-background-upload') ?>
 <?php submit_button( __( 'Upload' ), 'button', 'submit', false ); ?>
-</p>
 </form>
 </td>
 </tr>
@@ -270,10 +269,10 @@ if ( get_background_image() ) {
 <tr valign="top">
 <th scope="row"><?php _e( 'Repeat' ); ?></th>
 <td><fieldset><legend class="screen-reader-text"><span><?php _e( 'Background Repeat' ); ?></span></legend>
-<label><input type="radio" name="background-repeat" value="no-repeat"<?php checked('no-repeat', get_theme_mod('background_repeat', 'repeat')); ?>> <?php _e('No Repeat'); ?></option></label>
-	<label><input type="radio" name="background-repeat" value="repeat"<?php checked('repeat', get_theme_mod('background_repeat', 'repeat')); ?>> <?php _e('Tile'); ?></option></label>
-	<label><input type="radio" name="background-repeat" value="repeat-x"<?php checked('repeat-x', get_theme_mod('background_repeat', 'repeat')); ?>> <?php _e('Tile Horizontally'); ?></option></label>
-	<label><input type="radio" name="background-repeat" value="repeat-y"<?php checked('repeat-y', get_theme_mod('background_repeat', 'repeat')); ?>> <?php _e('Tile Vertically'); ?></option></label>
+<label><input type="radio" name="background-repeat" value="no-repeat"<?php checked('no-repeat', get_theme_mod('background_repeat', 'repeat')); ?> /> <?php _e('No Repeat'); ?></label>
+	<label><input type="radio" name="background-repeat" value="repeat"<?php checked('repeat', get_theme_mod('background_repeat', 'repeat')); ?> /> <?php _e('Tile'); ?></label>
+	<label><input type="radio" name="background-repeat" value="repeat-x"<?php checked('repeat-x', get_theme_mod('background_repeat', 'repeat')); ?> /> <?php _e('Tile Horizontally'); ?></label>
+	<label><input type="radio" name="background-repeat" value="repeat-y"<?php checked('repeat-y', get_theme_mod('background_repeat', 'repeat')); ?> /> <?php _e('Tile Vertically'); ?></label>
 </fieldset></td>
 </tr>
 
diff --git a/wp-admin/custom-header.php b/wp-admin/custom-header.php
index 18fe4857f4..4ace47987d 100644
--- a/wp-admin/custom-header.php
+++ b/wp-admin/custom-header.php
@@ -388,7 +388,8 @@ class Custom_Image_Header {
 		<?php if ( 'blank' == get_theme_mod( 'header_textcolor', HEADER_TEXTCOLOR ) || '' == get_theme_mod('header_textcolor', HEADER_TEXTCOLOR) || ! $this->header_text() ) { ?>
 		toggle_text();
 		<?php } ?>
-		});
+	});
+/* ]]> */
 </script>
 <?php
 	}
diff --git a/wp-admin/edit-tags.php b/wp-admin/edit-tags.php
index 90195acbb3..12867a280c 100644
--- a/wp-admin/edit-tags.php
+++ b/wp-admin/edit-tags.php
@@ -34,7 +34,7 @@ switch ( $wp_list_table->current_action() ) {
 
 case 'add-tag':
 
-	check_admin_referer( 'add-tag' );
+	check_admin_referer( 'add-tag', '_wpnonce_add-tag' );
 
 	if ( !current_user_can( $tax->cap->edit_terms ) )
 		wp_die( __( 'Cheatin&#8217; uh?' ) );
@@ -328,7 +328,7 @@ if ( current_user_can($tax->cap->edit_terms) ) {
 <input type="hidden" name="screen" value="<?php echo esc_attr($current_screen->id); ?>" />
 <input type="hidden" name="taxonomy" value="<?php echo esc_attr($taxonomy); ?>" />
 <input type="hidden" name="post_type" value="<?php echo esc_attr($post_type); ?>" />
-<?php wp_nonce_field('add-tag'); ?>
+<?php wp_nonce_field('add-tag', '_wpnonce_add-tag'); ?>
 
 <div class="form-field form-required">
 	<label for="tag-name"><?php _ex('Name', 'Taxonomy Name'); ?></label>
diff --git a/wp-admin/export.php b/wp-admin/export.php
index b530c89326..024ccf6cf2 100644
--- a/wp-admin/export.php
+++ b/wp-admin/export.php
@@ -109,7 +109,7 @@ function export_date_options() {
 			continue;
 
 		$month = zeroise( $date->month, 2 );
-		echo '<option value="' . $date->year . '-' . $month . '" />' . $wp_locale->get_month( $month ) . ' ' . $date->year . '</option>';
+		echo '<option value="' . $date->year . '-' . $month . '">' . $wp_locale->get_month( $month ) . ' ' . $date->year . '</option>';
 	}
 }
 ?>
diff --git a/wp-admin/includes/class-wp-posts-list-table.php b/wp-admin/includes/class-wp-posts-list-table.php
index c9c9c13ac8..1049819d1f 100644
--- a/wp-admin/includes/class-wp-posts-list-table.php
+++ b/wp-admin/includes/class-wp-posts-list-table.php
@@ -281,7 +281,7 @@ class WP_Posts_List_Table extends WP_List_Table {
 
 		$post_status = !empty( $_REQUEST['post_status'] ) ? $_REQUEST['post_status'] : 'all';
 		if ( post_type_supports( $post_type, 'comments' ) && !in_array( $post_status, array( 'pending', 'draft', 'future' ) ) )
-			$posts_columns['comments'] = '<div class="vers"><img alt="' . esc_attr__( 'Comments' ) . '" src="' . esc_url( admin_url( 'images/comment-grey-bubble.png' ) ) . '" /></div>';
+			$posts_columns['comments'] = '<span class="vers"><img alt="' . esc_attr__( 'Comments' ) . '" src="' . esc_url( admin_url( 'images/comment-grey-bubble.png' ) ) . '" /></span>';
 
 		$posts_columns['date'] = __( 'Date' );
 
diff --git a/wp-admin/includes/class-wp-terms-list-table.php b/wp-admin/includes/class-wp-terms-list-table.php
index ffca923a72..db8b031abc 100644
--- a/wp-admin/includes/class-wp-terms-list-table.php
+++ b/wp-admin/includes/class-wp-terms-list-table.php
@@ -250,7 +250,7 @@ class WP_Terms_List_Table extends WP_List_Table {
 		$pad = str_repeat( '&#8212; ', max( 0, $this->level ) );
 		$name = apply_filters( 'term_name', $pad . ' ' . $tag->name, $tag );
 		$qe_data = get_term( $tag->term_id, $taxonomy, OBJECT, 'edit' );
-		$edit_link = get_edit_term_link( $tag->term_id, $taxonomy, $post_type );
+		$edit_link = esc_url( get_edit_term_link( $tag->term_id, $taxonomy, $post_type ) );
 
 		$out = '<strong><a class="row-title" href="' . $edit_link . '" title="' . esc_attr( sprintf( __( 'Edit &#8220;%s&#8221;' ), $name ) ) . '">' . $name . '</a></strong><br />';
 
@@ -269,7 +269,7 @@ class WP_Terms_List_Table extends WP_List_Table {
 		$out .= '<div class="hidden" id="inline_' . $qe_data->term_id . '">';
 		$out .= '<div class="name">' . $qe_data->name . '</div>';
 		$out .= '<div class="slug">' . apply_filters( 'editable_slug', $qe_data->slug ) . '</div>';
-		$out .= '<div class="parent">' . $qe_data->parent . '</div></div></td>';
+		$out .= '<div class="parent">' . $qe_data->parent . '</div></div>';
 
 		return $out;
 	}
@@ -300,7 +300,7 @@ class WP_Terms_List_Table extends WP_List_Table {
 
 		$args['post_type'] = $post_type;
 
-		return "<a href='" . add_query_arg( $args, 'edit.php' ) . "'>$count</a>";
+		return "<a href='" . esc_url ( add_query_arg( $args, 'edit.php' ) ) . "'>$count</a>";
 	}
 
 	function column_links( $tag ) {
diff --git a/wp-admin/includes/class-wp-users-list-table.php b/wp-admin/includes/class-wp-users-list-table.php
index 41a6338ee6..42fd1e0deb 100644
--- a/wp-admin/includes/class-wp-users-list-table.php
+++ b/wp-admin/includes/class-wp-users-list-table.php
@@ -112,7 +112,7 @@ class WP_Users_List_Table extends WP_List_Table {
 			$name = translate_user_role( $name );
 			/* translators: User role name with count */
 			$name = sprintf( __('%1$s <span class="count">(%2$s)</span>'), $name, $avail_roles[$this_role] );
-			$role_links[$this_role] = "<a href='" . add_query_arg( 'role', $this_role, $url ) . "'$class>$name</a>";
+			$role_links[$this_role] = "<a href='" . esc_html( add_query_arg( 'role', $this_role, $url ) ) . "'$class>$name</a>";
 		}
 
 		return $role_links;
diff --git a/wp-admin/includes/dashboard.php b/wp-admin/includes/dashboard.php
index 781efde6e2..88d6111a95 100644
--- a/wp-admin/includes/dashboard.php
+++ b/wp-admin/includes/dashboard.php
@@ -552,7 +552,7 @@ function wp_dashboard_quick_press() {
 			<input type="reset" value="<?php esc_attr_e( 'Reset' ); ?>" class="button" />
 			<span id="publishing-action">
 				<input type="submit" name="publish" id="publish" accesskey="p" tabindex="5" class="button-primary" value="<?php current_user_can('publish_posts') ? esc_attr_e('Publish') : esc_attr_e('Submit for Review'); ?>" />
-				<img class="waiting" src="<?php echo esc_url( admin_url( 'images/wpspin_light.gif' ) ); ?>" />
+				<img class="waiting" src="<?php echo esc_url( admin_url( 'images/wpspin_light.gif' ) ); ?>" alt="" />
 			</span>
 			<br class="clear" />
 		</p>
diff --git a/wp-admin/includes/nav-menu.php b/wp-admin/includes/nav-menu.php
index a4953bdfd8..7e836e44ce 100644
--- a/wp-admin/includes/nav-menu.php
+++ b/wp-admin/includes/nav-menu.php
@@ -182,7 +182,7 @@ class Walker_Nav_Menu_Edit extends Walker_Nav_Menu  {
 							remove_query_arg($removed_args, admin_url( 'nav-menus.php' ) )
 						),
 						'delete-menu_item_' . $item_id
-					); ?>"><?php _e('Remove'); ?></a> <span class="meta-sep"> | </span> <a class="item-cancel submitcancel" id="cancel-<?php echo $item_id; ?>" href="<?php	echo add_query_arg( array('edit-menu-item' => $item_id, 'cancel' => time()), remove_query_arg( $removed_args, admin_url( 'nav-menus.php' ) ) );
+					); ?>"><?php _e('Remove'); ?></a> <span class="meta-sep"> | </span> <a class="item-cancel submitcancel" id="cancel-<?php echo $item_id; ?>" href="<?php	echo esc_url( add_query_arg( array('edit-menu-item' => $item_id, 'cancel' => time()), remove_query_arg( $removed_args, admin_url( 'nav-menus.php' ) ) ) );
 						?>#menu-item-settings-<?php echo $item_id; ?>"><?php _e('Cancel'); ?></a>
 				</div>
 
@@ -690,7 +690,7 @@ function wp_nav_menu_item_post_type_meta_box( $object, $post_type ) {
 			<p class="quick-search-wrap">
 				<input type="text" class="quick-search input-with-default-title" title="<?php esc_attr_e('Search'); ?>" value="<?php echo $searched; ?>" name="quick-search-posttype-<?php echo $post_type_name; ?>" />
 				<img class="waiting" src="<?php echo esc_url( admin_url( 'images/wpspin_light.gif' ) ); ?>" alt="" />
-				<?php submit_button( __( 'Search' ), 'quick-search-submit button-secondary hide-if-js', 'submit', false ); ?>
+				<?php submit_button( __( 'Search' ), 'quick-search-submit button-secondary hide-if-js', 'submit', false, array( 'id' => 'submit-quick-search-posttype-' . $post_type_name ) ); ?>
 			</p>
 
 			<ul id="<?php echo $post_type_name; ?>-search-checklist" class="list:<?php echo $post_type_name?> categorychecklist form-no-clear">
@@ -924,7 +924,7 @@ function wp_nav_menu_item_taxonomy_meta_box( $object, $taxonomy ) {
 			<p class="quick-search-wrap">
 				<input type="text" class="quick-search input-with-default-title" title="<?php esc_attr_e('Search'); ?>" value="<?php echo $searched; ?>" name="quick-search-taxonomy-<?php echo $taxonomy_name; ?>" />
 				<img class="waiting" src="<?php echo esc_url( admin_url( 'images/wpspin_light.gif' ) ); ?>" alt="" />
-				<?php submit_button( __( 'Search' ), 'quick-search-submit button-secondary hide-if-js', 'submit', false ); ?>
+				<?php submit_button( __( 'Search' ), 'quick-search-submit button-secondary hide-if-js', 'submit', false, array( 'id' => 'submit-quick-search-taxonomy-' . $taxonomy_name ) ); ?>
 			</p>
 
 			<ul id="<?php echo $taxonomy_name; ?>-search-checklist" class="list:<?php echo $taxonomy_name?> categorychecklist form-no-clear">
diff --git a/wp-admin/includes/widgets.php b/wp-admin/includes/widgets.php
index a591c60d87..6b7d63515c 100644
--- a/wp-admin/includes/widgets.php
+++ b/wp-admin/includes/widgets.php
@@ -207,8 +207,8 @@ function wp_widget_control( $sidebar_args ) {
 		<a class="widget-control-close" href="#close"><?php _e('Close'); ?></a>
 		</div>
 		<div class="alignright<?php if ( 'noform' === $has_form ) echo ' widget-control-noform'; ?>">
-		<img src="<?php echo esc_url( admin_url( 'images/wpspin_light.gif' ) ); ?>" class="ajax-feedback " title="" alt="" />
-		<?php submit_button( __( 'Save' ), 'button-primary widget-control-save', 'savewidget', false ); ?>
+		<img src="<?php echo esc_url( admin_url( 'images/wpspin_light.gif' ) ); ?>" class="ajax-feedback" title="" alt="" />
+		<?php submit_button( __( 'Save' ), 'button-primary widget-control-save', 'savewidget', false, array( 'id' => 'widget-' . esc_attr( $id_format ) . '-savewidget' ) ); ?>
 		</div>
 		<br class="clear" />
 	</div>
diff --git a/wp-admin/nav-menus.php b/wp-admin/nav-menus.php
index cc23aefb35..a6d3f656c1 100644
--- a/wp-admin/nav-menus.php
+++ b/wp-admin/nav-menus.php
@@ -556,7 +556,7 @@ require_once( './admin-header.php' );
 								<?php endif; ?>
 								<br class="clear" />
 								<div class="publishing-action">
-									<?php submit_button( empty( $nav_menu_selected_id ) ? __( 'Create Menu' ) : __( 'Save Menu' ), 'button-primary menu-save', 'save_menu', false ); ?>
+									<?php submit_button( empty( $nav_menu_selected_id ) ? __( 'Create Menu' ) : __( 'Save Menu' ), 'button-primary menu-save', 'save_menu', false, array( 'id' => 'save_menu_header' ) ); ?>
 								</div><!-- END .publishing-action -->
 
 								<?php if ( ! empty( $nav_menu_selected_id ) ) : ?>
@@ -595,7 +595,7 @@ require_once( './admin-header.php' );
 						<div class="publishing-action">
 							<?php
 							if ( ! empty( $nav_menu_selected_id ) )
-								submit_button( __( 'Save Menu' ), 'button-primary menu-save', 'save_menu', false );
+								submit_button( __( 'Save Menu' ), 'button-primary menu-save', 'save_menu', false, array( 'id' => 'save_menu_footer' ) );
 							?>
 						</div>
 						</div>
diff --git a/wp-admin/network/site-users.php b/wp-admin/network/site-users.php
index 9366cb930e..405e77741d 100644
--- a/wp-admin/network/site-users.php
+++ b/wp-admin/network/site-users.php
@@ -264,7 +264,7 @@ endif; ?>
 		</tr>
 	</table>
 	<?php wp_nonce_field( 'add-user', '_wpnonce_add-user' ) ?>
-	<?php submit_button( __('Add User'), 'primary', 'add-user' ); ?>
+	<?php submit_button( __('Add User'), 'primary', 'add-user', false, array( 'id' => 'submit-add-existing-user' ) ); ?>
 </form>
 <?php endif; ?>
 
@@ -300,7 +300,7 @@ endif; ?>
 		</tr>
 	</table>
 	<?php wp_nonce_field( 'add-user', '_wpnonce_add-new-user' ) ?>
-	<?php submit_button( __('Add New User'), 'primary', 'add-user' ); ?>
+	<?php submit_button( __('Add New User'), 'primary', 'add-user', false, array( 'id' => 'submit-add-user' ) ); ?>
 </form>
 <?php endif; ?>
 </div>
diff --git a/wp-admin/options-writing.php b/wp-admin/options-writing.php
index e5c7c68ff6..b3d8cdd546 100644
--- a/wp-admin/options-writing.php
+++ b/wp-admin/options-writing.php
@@ -69,7 +69,7 @@ if ( current_theme_supports( 'post-formats' ) ) :
 <?php foreach ( $post_formats[0] as $format ): ?>
 		<option<?php selected( get_option('default_post_format'), $format ); ?> value="<?php echo esc_attr( $format ); ?>"><?php echo esc_html( get_post_format_string( $format ) ); ?></option>
 <?php endforeach; ?>
-	</select></label>
+	</select>
 </td>
 </tr>
 <?php endif; endif; ?>
diff --git a/wp-admin/themes.php b/wp-admin/themes.php
index d0375a33a7..64a1241184 100644
--- a/wp-admin/themes.php
+++ b/wp-admin/themes.php
@@ -149,7 +149,7 @@ if ( ! current_user_can( 'switch_themes' ) ) {
 <p class="search-box">
 	<label class="screen-reader-text" for="theme-search-input"><?php _e('Search Installed Themes'); ?>:</label>
 	<input type="text" id="theme-search-input" name="s" value="<?php _admin_search_query(); ?>" />
-	<?php submit_button( __( 'Search Installed Themes' ), 'button', 'submit', false ); ?>
+	<?php submit_button( __( 'Search Installed Themes' ), 'button', false, false, array( 'id' => 'search-submit' ) ); ?>
 	<a id="filter-click" href="?filter=1"><?php _e( 'Feature Filter' ); ?></a>
 </p>
 
@@ -184,7 +184,7 @@ if ( ! current_user_can( 'switch_themes' ) ) {
 	<?php endforeach; ?>
 
 	<div class="feature-container">
-		<?php submit_button( __( 'Apply Filters' ), 'button-secondary submitter', 'submit', false, array( 'style' => 'margin-left: 120px' ) ); ?>
+		<?php submit_button( __( 'Apply Filters' ), 'button-secondary submitter', false, false, array( 'style' => 'margin-left: 120px', 'id' => 'filter-submit' ) ); ?>
 		&nbsp;
 		<small><a id="mini-filter-click" href="<?php echo esc_url( remove_query_arg( array('filter', 'features', 'submit') ) ); ?>"><?php _e( 'Close filters' )?></a></small>
 	</div>
diff --git a/wp-content/themes/twentyeleven/inc/theme-options.php b/wp-content/themes/twentyeleven/inc/theme-options.php
index 80f9a80b50..fb67c76e0c 100644
--- a/wp-content/themes/twentyeleven/inc/theme-options.php
+++ b/wp-content/themes/twentyeleven/inc/theme-options.php
@@ -195,7 +195,7 @@ function theme_options_render_page() {
 								<label class="description">
 									<input type="radio" name="twentyeleven_theme_options[color_scheme]" value="<?php echo esc_attr( $color['value'] ); ?>" <?php checked( $options['color_scheme'], $color['value'] ); ?> />
 									<span>
-										<img src="<?php echo esc_url( $color['thumbnail'] ); ?>"/>
+										<img src="<?php echo esc_url( $color['thumbnail'] ); ?>" alt=""/>
 										<?php echo $color['label']; ?>
 									</span>
 								</label>
@@ -212,7 +212,7 @@ function theme_options_render_page() {
 						<fieldset><legend class="screen-reader-text"><span><?php _e( 'Link Color', 'twentyeleven' ); ?></span></legend>
 							<input type="text" name="twentyeleven_theme_options[link_color]" id="link-color" value="<?php echo esc_attr( $options['link_color'] ); ?>" />
 							<a href="#" class="pickcolor hide-if-no-js" id="link-color-example"></a>
-							<input type="button" class="pickcolor button hide-if-no-js" value="<?php esc_attr_e( 'Select a Color', 'twentyeleven' ); ?>">
+							<input type="button" class="pickcolor button hide-if-no-js" value="<?php esc_attr_e( 'Select a Color', 'twentyeleven' ); ?>" />
 							<div id="colorPickerDiv" style="z-index: 100; background:#eee; border:1px solid #ccc; position:absolute; display:none;"></div>
 							<br />
 							<small class="description"><?php printf( __( 'Default color: %s', 'twentyeleven' ), $default_options['link_color'] ); ?></small>
@@ -230,7 +230,7 @@ function theme_options_render_page() {
 								<label class="description">
 									<input type="radio" name="twentyeleven_theme_options[theme_layout]" value="<?php echo esc_attr( $layout['value'] ); ?>" <?php checked( $options['theme_layout'], $layout['value'] ); ?> />
 									<span>
-										<img src="<?php echo esc_url( $layout['thumbnail'] ); ?>"/>
+										<img src="<?php echo esc_url( $layout['thumbnail'] ); ?>" alt=""/>
 										<?php echo $layout['label']; ?>
 									</span>
 								</label>