Prevent user from modifying the displayed export code

script/engine.js

@@ -318,6 +318,7 @@
 					start: {
 						text: [_('save this.')],
 						textarea: string64,
+						readonly: true,
 						buttons: {
 							'done': {
 								text: _('got it'),

script/events.js

@@ -614,7 +614,10 @@ var Events = {
 		}
 		
 		if(scene.textarea != null) {
-			$('<textarea>').val(scene.textarea).appendTo(desc);
+			var ta = $('<textarea>').val(scene.textarea).appendTo(desc);
+			if(scene.readonly) {
+				ta.attr('readonly', true);
+			}
 		}
 		
 		// Draw any loot