override func viewDidLoad()
{
    super.viewDidLoad()
    // Do any additional setup after loading the view.


   // let url = NSURL (string:"https://www.google.co.in/")
 let url = NSURL (string:urlString)


    let requestObj = NSURLRequest(url: url! as URL)

    myWebView.loadRequest(requestObj as URLRequest)    }