파싱받은 웹주소버튼 입력시 사파리로 띄우기

    var shopInfoData : NSDictionary!

@IBAction func snsBtn(sender: AnyObject) {
            var sns_url = shopInfoData.valueForKey("sns_url") as! String
        UIApplication.sharedApplication().openURL(NSURL(string:sns_url)!)
    }

  func returnJSON(data: NSDictionary, code: Int) {
        if NetworkCode().GET_SHOP_INFO==code {
            var returnData2 : NSDictionary = data.valueForKey("data") as! NSDictionary
            shopInfoData = returnData2