pass string to url
<p>i hv a string
NSString *const kAUrl = @"http://www.google/start.php?show=best&amp;usr=(here)&amp;pwd=x";</p>

<p>and 
i want to pass another string 
NSstring *a = @"aa";</p>

<p>to above url at the place i have written  (here) in above url.</p>

<p>How can i pass it?</p>

<p>regards</p>
