Add shuffle method to ArrayUtil class

src/com/adobe/utils/ArrayUtil.as

@@ -153,7 +153,7 @@ package com.adobe.utils
 		*	Compares two arrays and returns a boolean indicating whether the arrays
 		*	contain the same values at the same indexes.
 		* 
-		* 	@param arr1 The first array that will be compared to the second.
+		* 	@param arr1	The first array that will be compared to the second.
 		*
 		* 	@param arr2 The second array that will be compared to the first.
 		*
@@ -183,5 +183,31 @@ package com.adobe.utils
 
 			return true;
 		}
+
+		/**
+		*	Shuffle the indexes of source array
+		* 
+		*	@param source The source array to shuffle items
+		* 
+		* 	@param startIndex [optional] Array index that shuffle will start 
+		* 
+		* 	@param endIndex [optional] Array index that shuffle will end
+		* 
+		* 	@langversion ActionScript 3.0
+		*	@playerversion Flash 9.0
+		*	@tiptext
+		*/
+		public static function shuffle(source:Array,startIndex:int = 0, endIndex:int = 0) : void 
+		{ 
+			if (endIndex == 0) 
+				endIndex = source.length-1;
+			for (var i:int = endIndex; i>startIndex; i--)
+			{
+				var randomNumber:int = Math.floor(Math.random()*endIndex)+startIndex;
+				var tmp:* = source[i];
+				source[i] = source[randomNumber];
+				source[randomNumber] = tmp;
+			}
+		}
 	}
 }

tests/src/com/adobe/utils/ArrayUtilTest.as

@@ -168,6 +168,22 @@ package com.adobe.utils
 			assertTrue("!ArrayUtil.arrayContainsValue(arr, 10)", 
 										!ArrayUtil.arrayContainsValue(arr, 10));
 		}
+
+		public function testArrayShuffle():void 
+		{
+			var arr2:Array = ArrayUtil.copyArray(arr);
+			var length:uint = arr2.length;
+
+			ArrayUtil.shuffle(arr);
+			assertNotNull("arr is null", arr);
+			assertTrue("arr.length == arr2.length", arr.length == arr2.length);
+
+			var i : uint;
+			for (i=0;i<length;i++)
+			{
+				assertTrue("arr2["+i+"] contains in arr[]", ArrayUtil.arrayContainsValue(arr, arr2[i]));
+			}
+		}
 
 	}
 }