     
     func webView(webView: WKWebView, didFinishNavigation navigation: WKNavigation!) {
         //disable the original wkactionsheet
-        //webView.evaluateJavaScript("document.body.style.webkitTouchCallout='none';", completionHandler: nil)
+        webView.evaluateJavaScript("document.body.style.webkitTouchCallout='none';", completionHandler: nil)
         if(scrollPositionSwitch == true) {
             self.webView.scrollView.setContentOffset(CGPointMake(0.0, slideViewValue.scrollPosition[slideViewValue.windowCurTab]), animated: true)
             scrollPositionSwitch = false

            //initial y point
            slideViewValue.scrollPosition.append(CGFloat(0.0))
            
            self.loadRequest(self.longPressAcUrl)
        }
        alertController.addAction(opentabAction)
        let copyurlAction = UIAlertAction(title: "Copy Link", style: .Default) { (action) in
            let pb: UIPasteboard = UIPasteboard.generalPasteboard();
            pb.string = self.longPressAcUrl
        }
        alertController.addAction(copyurlAction)
        let shareAction = UIAlertAction(title: "Share Link", style: .Default) { (action) in
            let activityViewController = UIActivityViewController(activityItems: [self.longPressAcUrl as NSString], applicationActivities: nil)
            self.presentViewController(activityViewController, animated: true, completion: {})
        }
        alertController.addAction(shareAction)
        
        return alertController
    }*/
    
    //function to refresh
    func refreshPressed() {

    var scrollPositionSwitch: Bool = false //switch position scroll when revealViewController is close
    
    //actionsheet
    var longPressRecognizer = UILongPressGestureRecognizer()
    var longPressSwitch: Bool = false
    
    //Search Engines
    //0: Google, 1: Baidu
