/// - __transitionstyle__: Set to `fliphorizontal`, `crossdissolve` or `coververtical` to set the [transition style](http://developer.apple.com/library/ios/#documentation/UIKit/Reference/UIViewController_Class/Reference/Reference.html#//apple_ref/occ/instp/UIViewController/modalTransitionStyle) (defaults to `coververtical`).
/// - __transitionstyle__: Set to `fliphorizontal`, `crossdissolve` or `coververtical` to set the [transition style](http://developer.apple.com/library/ios/#documentation/UIKit/Reference/UIViewController_Class/Reference/Reference.html#//apple_ref/occ/instp/UIViewController/modalTransitionStyle) (defaults to `coververtical`).
/// - __toolbarposition__: Set to `top` or `bottom` (default is `bottom`). Causes the toolbar to be at the top or bottom of the window.
/// - __toolbarposition__: Set to `top` or `bottom` (default is `bottom`). Causes the toolbar to be at the top or bottom of the window.
/// - __hidespinner__: Set to `yes` or `no` to change the visibility of the loading indicator (defaults to `no`).
/// - __hidespinner__: Set to `yes` or `no` to change the visibility of the loading indicator (defaults to `no`).