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-rw-r--r--htdocs/cropper/smokeping-zoom.js2
1 files changed, 1 insertions, 1 deletions
diff --git a/htdocs/cropper/smokeping-zoom.js b/htdocs/cropper/smokeping-zoom.js
index e42a6b0..a858d56 100644
--- a/htdocs/cropper/smokeping-zoom.js
+++ b/htdocs/cropper/smokeping-zoom.js
@@ -66,7 +66,7 @@ function changeRRDImage(coords,dimensions){
if (SelectRight > RRDImgWidth - RRDRight)
RightFactor = 10;
- EndEpoch = Math.ceil(StartEpoch + (SelectRight - RRDLeft) * DivEpoch / RRDImgUsable * RightFactor);
+ EndEpoch = Math.ceil(EndEpoch + (SelectRight - (RRDImgWidth - RRDRight) ) * DivEpoch / RRDImgUsable * RightFactor);
StartEpoch = NewStartEpoch;