How can I control showing of views on iPhone
<p>Here is the scenario. I have 4 view controllers v1, v2, v3, v4 which are displayed using 4 tabbarcontroller of iPhone. now I push another view sv1 to v1 (while I am viewing v1, I use pushviewcontroller). Now if I press v2 tabbar (while I am viewing sv1), and then press v1 I see sv1. However, I do not want this behavior. I want to show v1 instead of sv1. How can I remove sv1 from its parent's view when v2 is clicked?</p>

<p>Thanks.  </p>
