Fixed an image preload issue with SpriteSheet.

Signed-off-by: Grant Skinner <info@gskinner.com>

Author: gskinner

VERSIONS.txt

@@ -1,3 +1,9 @@
+Version 0.4.1 [Not released]
+****************************************************************************************************
+- fixed a problem with preloading sprite sheet images when using tile based sheets
+- worked around a bug in Safari with addFlippedFrames
+
+
 Version 0.4 [Nov 30, 2011] 
 ****************************************************************************************************
 - completely rewrote BitmapSequence (now BitmapAnimation) & SpriteSheet including data format

src/easeljs/display/BitmapAnimation.js

@@ -361,4 +361,4 @@ var p = BitmapAnimation.prototype = new DisplayObject();
 	}
 
 window.BitmapAnimation = BitmapAnimation;
-}(window));
+}(window));

src/easeljs/display/SpriteSheet.js

@@ -215,7 +215,7 @@ var p = SpriteSheet.prototype;
 				if (!img.getContext && !img.complete) {
 					this._loadCount++;
 					this.complete = false;
-					img.onload = this._handleImageLoad();
+					(function(o) { img.onload = function() { o._handleImageLoad(); } })(this);
 				}
 			}
 		}