From 3c1d04cbd10a23cb74aead2faec17ea70e565359 Mon Sep 17 00:00:00 2001
From: hizhengfu <hizhengfu@gmail.com>
Date: Mon, 14 Jan 2013 16:10:32 +0800
Subject: [PATCH] Correction calculation error margin
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Correction calculation error margin 
---
 jquery.flot.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/jquery.flot.js b/jquery.flot.js
index c2d01f2..918352a 100644
--- a/jquery.flot.js
+++ b/jquery.flot.js
@@ -1142,10 +1142,10 @@ Licensed under the MIT license.
 
             for (var a in plotOffset) {
                 if(typeof(options.grid.borderWidth) == "object") {
-                    plotOffset[a] = showGrid ? options.grid.borderWidth[a] : 0;
+                    plotOffset[a] += showGrid ? options.grid.borderWidth[a] : 0;
                 }
                 else {
-                    plotOffset[a] = showGrid ? options.grid.borderWidth : 0;
+                    plotOffset[a] += showGrid ? options.grid.borderWidth : 0;
                 }
             }