hi im making a tabbar app that has several webviews on it and im trying to get a network indication or activity indication to work but for some reason neither webViewDidStartLoad or webViewDidFinishLoad are being called as the pages load...

heres a snippet of my project, if anyone needs more info to help me ill package more of it




Code:
//First View Controller.h

#import 


@interface FirstViewController : UIViewController  {
	UIWebView *lei;
	UIActivityIndicatorView *activityIndicator;
}
@property(nonatomic,retain) IBOutlet UIWebView *lei;
@property(nonatomic,retain) IBOutlet UIActivityIndicatorView *activityIndicator;

-(IBAction) goBack:(id)sender;
-(IBAction) goRefresh:(id)sender;

@end


//First Vier Controller.m

#import "FirstViewController.h"


@implementation FirstViewController

@synthesize lei, activityIndicator;


-(void)viewDidLoad {
	[super viewDidLoad];
	NSString *urlAddress = @"http://website.com";
	
	NSURL *url = [NSURL URLWithString:urlAddress];
	NSURLRequest *requestObj = [NSURLRequest requestWithURL:url];
	
	[lei loadRequest:requestObj];
	
}

-(IBAction) goBack:(id)sender {
	[lei goBack];
}
-(IBAction) goRefresh:(id)sender {
	NSString *urlAddress = @"http://website.com";
	
	NSURL *url = [NSURL URLWithString:urlAddress];
	NSURLRequest *requestObj = [NSURLRequest requestWithURL:url];
	
	[lei loadRequest:requestObj];
	
}

-(void)webViewDidStartLoad:(UIWebView *)lei {
	[self.activityIndicator startAnimating];
	
}
-(void)webViewDidFinishLoad:(UIWebView *)lei {
	[self.activityIndicator stopAnimating];
	
}


- (void)didReceiveMemoryWarning {
	
    [super didReceiveMemoryWarning];
	
}

- (void)viewDidUnload {

}


- (void)dealloc {
    [super dealloc];
}

@end


//AppDelegate.h

#import 

@interface LeiAppAppDelegate : NSObject  {
    UIWindow *window;
    UITabBarController *tabBarController;
}

@property (nonatomic, retain) IBOutlet UIWindow *window;
@property (nonatomic, retain) IBOutlet UITabBarController *tabBarController;

@end


//AppDelegate.m

#import "LeiAppAppDelegate.h"


@implementation LeiAppAppDelegate

@synthesize window;
@synthesize tabBarController;


- (void)applicationDidFinishLaunching:(UIApplication *)application {
	sleep(0);
	
    [window addSubview:tabBarController.view];
}


- (void)dealloc {
    [tabBarController release];
    [window release];
    [super dealloc];
}

@end