var url : NSString = "(参照したいURL)"
    var urlStr : NSString = url.stringByAddingPercentEscapesUsingEncoding(NSUTF8StringEncoding)!
    var searchURL : NSURL = NSURL(string: urlStr as String)!

    // ブラウザ起動
    if UIApplication.sharedApplication().canOpenURL(searchURL){
        UIApplication.sharedApplication().openURL(searchURL)
    }