1 files changed, 2 insertions, 1 deletions
diff --git a/js/app.js b/js/app.js
index a9f7bb7..e9ed28f 100644
--- a/js/app.js
+++ b/js/app.js
@@ -4,6 +4,7 @@ var drawing = false
 var erasing = false
 var selecting = false
 var filling = false
+var changed = false
 var focused
 
 var canvas, tools, palette, controls, brush, mode, current_tool, current_canvas
@@ -58,7 +59,7 @@ function bind () {
 	})
 	
 	window.onbeforeunload = function() {
-		return "Are you sure you want to navigate away?";
+		if (changed) return "You have edited this drawing."
 	}
 }