0046655: Verified Returns Popup wrongly positioned

diff --git a/web/org.openbravo.mobile.core/source/component/ob-commonbuttons.js b/web/org.openbravo.mobile.core/source/component/ob-commonbuttons.js
index 81a814e7..cb7159c4 100644
--- a/web/org.openbravo.mobile.core/source/component/ob-commonbuttons.js
+++ b/web/org.openbravo.mobile.core/source/component/ob-commonbuttons.js
@@ -785,18 +785,22 @@ enyo.kind({
 
     if (top.indexOf('%') !== -1) {
       this.addStyles('top: ' + top);
-      this.addStyles(
-        'margin-top: -' + Math.max(t.height / 2, 0).toString() + 'px;'
-      );
+      if (t.height !== 0) {
+        this.addStyles(
+          'margin-top: -' + Math.max(t.height / 2, 0).toString() + 'px;'
+        );
+      }
     } else {
       this.addStyles('top: ' + top + 'px');
     }
 
     if (left.indexOf('%') !== -1) {
       this.addStyles('left: ' + left);
-      this.addStyles(
-        'margin-left: -' + Math.max(t.width / 2, 0).toString() + 'px;'
-      );
+      if (t.width !== 0) {
+        this.addStyles(
+          'margin-left: -' + Math.max(t.width / 2, 0).toString() + 'px;'
+        );
+      }
     } else {
       this.addStyles('left: ' + left + 'px');
     }