file URL path. In the real world, you would simply
						// point to an absolute path directly, like "/mydir/mydialog.js".
						var href = document.location.href.split( '/' );
						href.pop();
						href.push( 'api_dialog', 'my_dialog.js' );
						href = href.join( '/' );

						// Finally, register the dialog.
						CKEDITOR.dialog.add( 'myDialog', href );
					}

					// Register the command used to open the dialog.
					editor.addCommand( 'myDialogCmd', new CKEDITOR.dialogCommand( 'myDialog' ) );

				