void OnGUI()
{
// state = state.renderGUI(new Vector2(pageShift,0),_guiStyle);
MenuState tmp_state;
//renders shifted menu
if (state != oldState) offset++;
oldState = state;
// oldState = oldState.renderGUI(new Vector2(pageShift - Screen.width,0),_guiStyle);
tmp_state = oldState.renderGUI(new Vector2(pageShift - Screen.width,0),_guiSkin);
if (tmp_state != MenuManager.none) state = tmp_state;
}