fixed the "RangeError #2006" bug, when a Book was instantiated withou…

…t children.

README.markdown

@@ -1,6 +1,6 @@
 # FlexBook #
 
-- Current Version: 1.0.3
+- Current Version: 1.0.4
 - Flex 3.5 / AS3 / Flash Player 9+
 - Date: 4th July 2007
 - Original Author: Ruben Swieringa
@@ -11,15 +11,15 @@ For demos / implementations, look at this repo:
 
 ## Release Notes
 
-- Fixed the 'sticky-page' bug
-- Added the jumptoPage method. It's similar to the gotoPage method, but it won't do a lot of flips to reach some page.
-- Fixed the bug that, when adding a Page dynamically, the Page didn't show fold gradients.
+- Fixed the 'sticky-page' bug;
+- Added the jumptoPage method. It's similar to the gotoPage method, but it won't do a lot of flips to reach some page;
+- Fixed the bug that, when adding a Page dynamically, the Page didn't show fold gradients;
+- Fixed the "RangeError #2006" bug, when a Book was instantiated without any children.
 
 ## Known Issues / Bugs
 
-- For Book instances, height values greater than the height of the content may slow down the application.
-- ScrollPolicies for Page instances are disabled (the properties have been overridden and are idle in the Page class). When a Page instance is not being flipped, its fold-gradient is drawn upon a Shape instance stored within that Page its rawChildren. When scrollbars are displayed, the Shape instance will no longer be in place.
-- When a Book instance without any children is initialized a RangeError is thrown. I will look into this issue, in the meanwhile you may want to use the following workaround; Put two child Page instances in the Book instance, then (from withinin the creationComplete property of the Book instance) remove the two dummy-children by using the removeChild() method.
+- For Book instances, height values greater than the height of the content may slow down the application;
+- ScrollPolicies for Page instances are disabled (the properties have been overridden and are idle in the Page class). When a Page instance is not being flipped, its fold-gradient is drawn upon a Shape instance stored within that Page its rawChildren. When scrollbars are displayed, the Shape instance will no longer be in place;
 - When using the jumptoPage method, the previous pages are instantly rendered before the flip. Example: You are on pages 2-3 and want to go to pages 8-9. When jumptoPage is called, the pages 6-7 will override pages 2-3, before flipping to pages 8-9.
 
 ## Credits

src/com/rubenswieringa/book/Book.as

@@ -106,7 +106,7 @@ package com.rubenswieringa.book {
 	 * @author		Ruben Swieringa
 	 * 				and others.
 	 * 				http://github.com/rthesaint/FlexBook
-	 * @version		1.0.3
+	 * @version		1.0.4
 	 * @see			PageManager PageManager
 	 * @see			Page Page
 	 * @see			BookEvent BookEvent

src/com/rubenswieringa/containers/SuperViewStack.as

@@ -24,7 +24,7 @@ package com.rubenswieringa.containers {
 	 * @author		Ruben Swieringa
 	 * 				[email protected]
 	 * 				www.rubenswieringa.com
-	 * @version		1.0.3
+	 * @version		1.0.4
 	 * @see			mx.containers.ViewStack
 	 * 
 	 * 
@@ -480,9 +480,12 @@ package com.rubenswieringa.containers {
 		 * @see		mx.containers.ViewStack#selectedChild
 		 */
 		public function get selectedChild ():Container {
+			if (this.numChildren == 0)
+				return null;
+
 			return super.getChildAt(this._selectedIndex) as Container;
 		}
-		public function set selectedChild (child:Container):void {
+		public function set selectedChild (child:Container):void {
 			this.selectedIndex = this.getChildIndex(child);
 		}