diff --git a/app/pub/scripts/anviewer.js b/app/pub/scripts/anviewer.js
index d81e9f0..de72e56 100644
--- a/app/pub/scripts/anviewer.js
+++ b/app/pub/scripts/anviewer.js
@@ -96,6 +96,7 @@ function resize_minus(){
 function newpdfzoom(czoom){
   
   var status = czoom+"%";
+  cent = czoom;
   
   document.getElementById(pdfcanvas).style.width = status;
   document.getElementById('zoomstatus').innerHTML = status;