Selected text/string not firing - iphone

Question

Am using UIMenuController for showing up wikipedia, dictionary and highlighting the text. I did the following,
- (void)viewDidLoad
{
UILongPressGestureRecognizer *longPressGestureRecognizer = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:#selector(handleLongPress)];
longPressGestureRecognizer.minimumPressDuration =0.4;
longPressGestureRecognizer.delegate=self;
[webView addGestureRecognizer:longPressGestureRecognizer];
[longPressGestureRecognizer release];
}
- (void)handleLongPress//:(id)sender
{
//location = [recognizer locationInView:self.view];
//
// NSLog(#"location :%d",location);
UIMenuController *menuController = [UIMenuController sharedMenuController];
[self becomeFirstResponder];
UIMenuItem *item = [[[UIMenuItem alloc] initWithTitle: #"Wikipedia"
action: #selector(wiki:)] autorelease];
UIMenuItem *item1 = [[[UIMenuItem alloc] initWithTitle: #"Dictionary"
action: #selector(dict:)] autorelease];
UIMenuItem *item2 = [[[UIMenuItem alloc] initWithTitle: #"Highlight"
action: #selector(highlighting:)] autorelease];
[menuController setTargetRect:CGRectMake(100, 100, 320, 100) inView:webView];
[menuController setMenuVisible:YES animated:YES];
[menuController setMenuItems: [NSArray arrayWithObjects: item,item1,item2,nil]];
}
-(BOOL)canBecomeFirstResponder
{
return YES;
}
- (BOOL) canPerformAction:(SEL)action withSender:(id)sender
{
if (action == #selector( wiki:))
{
return YES; // logic here for context menu show/hide
}
if (action == #selector( dict:))
{
return YES; // logic here for context menu show/hide
}
if (action == #selector(highlighting:))
{
// turn off copy: if you like:
return YES;
}
return [super canPerformAction: action withSender: sender];
}
- (void)wiki: (id) sender
{
NSString *shareUrlString = [NSString stringWithFormat:#"http://en.wikipedia.org/wiki/%#",[self selectedText]];
NSLog(#"selectedText Wiki: %#",[self selectedText]);
//Create the URL string which will tell Facebook you want to share that specific page
NSURL *url = [ [ NSURL alloc ] initWithString:shareUrlString ];
//Create the URL object
[[UIApplication sharedApplication] openURL:url];
//Launch Safari with the URL you created
[url release];
}
- (NSString *)selectedText
{
return [webView stringByEvaluatingJavaScriptFromString:#"window.getSelection().toString()"];
}
Am able to get the wikipedia website but not with the selected text/word. What's the problem in the above code? Thanks in advance.