- (void) FooBar:(NSString *)myStr
{
  NSString *callback = [NSString stringWithFormat:@"Some Text Here(%i)", myStr];

  [self.webView stringByEvaluatingJavaScriptFromString:callback];
}

- (void) FooBar:(NSString *)myStr
{
  NSString *callback = [NSString stringWithFormat:@"Some Text Here(%i)", myStr];
    NSLog(@"NSString = %@", myStr);
    NSLog(@"Percent i = %i", myStr);
    NSLog(@"Percent i = %i", [myStr intValue]);

  [self.webView stringByEvaluatingJavaScriptFromString:callback];
}

NSString = /__utm.gif?utmwv=4.8mi&utmn=1220166202&utmt=event&utme=5(Init*shoutzVersion*iPhone%20Simulator)(1)&utmcs=UTF-8&utmsr=320x480&utmsc=24-bit&utmul=en-us&utmac=UA-28151051-1&utmcc=__utma%3D1.1697021890.1347557664.1348092917.1348092961.195%3B&utmht=1348092961213&utmqt=9984

Percent i = 154448576

Percent i = 0

- (void) FooBar:(NSString *)myStr
{
  NSString *callback = [NSString stringWithFormat:@"Some Text Here(%@)", myStr];

  [self.webView stringByEvaluatingJavaScriptFromString:callback];
}

NSString *callback = [NSString stringWithFormat:@"Some Text Here(%i)", myStr];

[NSString stringWithFormat:@"Some text %i some number %i", myStr, 117];

[NSString stringWithFormat:@"Some number %i some text %@", myStr, myStr];