switching

i need to switch between two variables so i am able to serve two variables equally for example i have $ad1 $ad2 i want to serve both ads equally using a light method with no database using random method won't serve both equally can you please guide me how to achieve this ? But the random method (50/50) should serve both equally, given enough requests. And it is the simplest solution imho. <?php $ad1 = '<img src... >'; $ad2 = '<img src...2 >'; echo mt_rand(0, 1) ? $ad1 : $ad2; ?> You can use memcache (recommended) You can keep track of the last used variable in a file on the server (not

I am Having 8 Screenns.I have prepared 8 Activities for that. In First Activity I have given this code To Switch from Ist Activity to IInd On Image Button gives On Click public void onClick(View v) { Intent myIntent = new Intent(v.getContext(), Activity2.class); v.getContext().startActivity(myIntent); }); What to do to Switch on 2nd Activity to 3rd Activity , 3rd Activity to 4th Activity , and so on. Pls help me in regard. Here's 1 way you could do it below. In this example, you'd put 3 buttons on the screen. These are buttons I defined and laid out in my XML file. Click on any of the 3

I want to switch between 2 UIViewController classes programmatically without any extra UI control like a UITabBarController that adds a UI to the application. My main loads the first view controller with addSubView. vc1 = new viewc1(); window.AddSubview(vc1.View); window.MakeKeyAndVisible (); I can load my second viewcontroller from the first one with PresentModalViewController vc2 = new viewc2(); PresentModalViewController(vc2, true); but i need to switch back and forth, and to release the old viewControllers to save memory. What is the best way to do this? DismissModalViewControllerAnimated