skins/classic/functions.js
@@ -664,8 +664,13 @@ function iframe_events() { // this==iframe try { var doc = this.contentDocument ? this.contentDocument : this.contentWindow ? this.contentWindow.document : null; rcube_event.add_listener({ element: doc, object:rcmail_ui, method:'body_mouseup', event:'mouseup' }); } catch (e) { // catch possible "Permission denied" error in IE }; }; // Abbreviate mailbox names to fit width of the container