Avoid using $.browser.msie

git-svn-id: https://flot.googlecode.com/svn/trunk@233 1e0a6537-2640-0410-bfb7-f154510ff394

NEWS.txt

@@ -27,6 +27,8 @@ Bug fixes:
 - Fixed problem with plugins adding options to the series objects.
 - Fixed a problem introduced in 0.6 with specifying a gradient with {
   brightness: x, opacity: y }.
+- Don't use $.browser.msie, check for getContext on the created canvas
+  element instead and try to use excanvas if it's not found.
 
 Flot 0.6
 --------

jquery.flot.js

@@ -541,7 +541,7 @@
                 var c = document.createElement('canvas');
                 c.width = width;
                 c.height = height;
-                if ($.browser.msie) // excanvas hack
+                if (!c.getContext) // excanvas hack
                     c = window.G_vmlCanvasManager.initElement(c);
                 return c;
             }
@@ -555,7 +555,7 @@
             if (canvasWidth <= 0 || canvasHeight <= 0)
                 throw "Invalid dimensions for plot, width = " + canvasWidth + ", height = " + canvasHeight;
 
-            if ($.browser.msie) // excanvas hack
+            if (window.G_vmlCanvasManager) // excanvas hack
                 window.G_vmlCanvasManager.init_(document); // make sure everything is setup
             
             // the canvas