Index: /CKEditor/branches/features/aria/_source/lang/en.js
===================================================================
--- /CKEditor/branches/features/aria/_source/lang/en.js	(revision 4913)
+++ /CKEditor/branches/features/aria/_source/lang/en.js	(revision 4914)
@@ -33,6 +33,7 @@
 	 */
 	editorTitle		: 'Rich text editor, %1',
-	editorWysiwygModeVoiceLabel : 'Wysiwyg mode, press ALT+F10 moves to toolbar, ALT+F11 moves to elementspath bar.SHIFT+F10 opens contextmenu.',
+	editorWysiwygModeVoiceLabel : 'Wysiwyg mode, press ALT+F10 moves to toolbar, ALT+F11 moves to elementspath bar, SHIFT+F10 opens contextmenu.',
 	editorSourceModeVoiceLabel : 'Source mode, press ALT+F10 moves to toolbar.',
+	dialogVoiceLabel : 'Press Esc to close dialog, enter to submit dialog, ALT+F10 moves to tab list.',
 
 	// Toolbar buttons without dialogs.
Index: /CKEditor/branches/features/aria/_source/plugins/dialog/plugin.js
===================================================================
--- /CKEditor/branches/features/aria/_source/plugins/dialog/plugin.js	(revision 4913)
+++ /CKEditor/branches/features/aria/_source/plugins/dialog/plugin.js	(revision 4914)
@@ -136,7 +136,21 @@
 		this.parts = themeBuilt.parts;
 
+		var dialogPart = this.parts.dialog,
+			 contentsPart = this.parts.contents,
+			 titleId = this.parts.title.$.id,
+			 descriptiveLabelId = titleId.replace( 'title', 'desc' ),
+			 descriptiveLabel = CKEDITOR.dom.element.createFromHtml( '<label id="' + descriptiveLabelId + '" style="display:none">' + editor.lang.dialogVoiceLabel+ '</label>' );
+
+		descriptiveLabel.insertAfter( contentsPart );
+		contentsPart.setAttributes(
+		{
+			'role' : 'dialog',
+			'aria-labelledby' : titleId,
+			'aria-describedby' : descriptiveLabelId
+		} );
+
 		// Set the startup styles for the dialog, avoiding it enlarging the
 		// page size on the dialog creation.
-		this.parts.dialog.setStyles(
+		dialogPart.setStyles(
 			{
 				position : CKEDITOR.env.ie6Compat ? 'absolute' : 'fixed',