From b18accbfe7e2ec7b569e6265b178c86db12e23be Mon Sep 17 00:00:00 2001
From: root <jseidelin@nihilogic.dk>
Date: Fri, 4 Sep 2009 07:51:27 +0200
Subject: [PATCH] fix globalAlpha check so it doesn't barf in IE

---
 pixastic.core.js | 35 +++++++++++++++++++----------------
 1 file changed, 19 insertions(+), 16 deletions(-)

diff --git a/pixastic.core.js b/pixastic.core.js
index 5f1d15e..d51beaf 100755
--- a/pixastic.core.js
+++ b/pixastic.core.js
@@ -332,8 +332,9 @@ var Pixastic = (function() {
 
 					return img;
 				}
-			} else if (Pixastic.Client.isIE() && typeof img.__pixastic_org_style != "undefined") {
-				img.style.cssText = img.__pixastic_org_style;
+			} else if (Pixastic.Client.isIE()) {
+ 				if (typeof img.__pixastic_org_style != "undefined")
+					img.style.cssText = img.__pixastic_org_style;
 			}
 		},
 
@@ -364,24 +365,26 @@ var Pixastic = (function() {
 			})(),
 
 			hasGlobalAlpha : (function() {
+				var hasAlpha = false;
 				var red = document.createElement("canvas");
-				red.width = red.height = 1;
-				var redctx = red.getContext("2d");
-				redctx.fillStyle = "rgb(255,0,0)";
-				redctx.fillRect(0,0,1,1);
+				if (red.getContext) {
+					red.width = red.height = 1;
+					var redctx = red.getContext("2d");
+					redctx.fillStyle = "rgb(255,0,0)";
+					redctx.fillRect(0,0,1,1);
 
-				var blue = document.createElement("canvas");
-				blue.width = blue.height = 1;
-				var bluectx = red.getContext("2d");
-				bluectx.fillStyle = "rgb(0,0,255)";
-				bluectx.fillRect(0,0,1,1);
+					var blue = document.createElement("canvas");
+					blue.width = blue.height = 1;
+					var bluectx = red.getContext("2d");
+					bluectx.fillStyle = "rgb(0,0,255)";
+					bluectx.fillRect(0,0,1,1);
 
-				redctx.globalAlpha = 0.5;
-				redctx.drawImage(blue, 0, 0);
-				var reddata = redctx.getImageData(0,0,1,1).data;
-
-				var hasAlpha = (reddata[2] != 255);
+					redctx.globalAlpha = 0.5;
+					redctx.drawImage(blue, 0, 0);
+					var reddata = redctx.getImageData(0,0,1,1).data;
 
+					hasAlpha = (reddata[2] != 255);
+				}
 				return function() {
 					return hasAlpha;
 				}