Help With Multiple Text Field Valdiation

- (void)textFieldDidEndEditing:(UITextField *)textField
{	
	//NSLog(@"BundlePath: %@", [[NSBundle mainBundle] bundlePath]);
	
	//declare the vars
	NSString *userNameOne = txtUserName.text;
	float numOne = [userNameOne intValue];			//age in years
	NSString *userNameTwo = txtUserName2.text;
	float numTwo = [userNameTwo intValue];			//iop
	NSString *userNameThree = txtUserName3.text;
	float numThree = [userNameThree intValue];		//cct
	NSString *userNameFour = txtUserName4.text;	
	float numFour = [userNameFour intValue];		//psd
	NSString *userNameFive = txtUserName5.text;
	float numFive = [userNameFive intValue];

	
	if(numOne < 40 || numOne > 100)
	{
			
		//play sound and vibrate for alert
		NSString *bonkSoundFile = [[NSBundle mainBundle] pathForResource:@"alertSound" ofType:@"mp3"];
		NSURL *fileURL = [NSURL fileURLWithPath:bonkSoundFile];
		SystemSoundID  bonkSoundID;
		AudioServicesCreateSystemSoundID( (CFURLRef) fileURL, &bonkSoundID);
		AudioServicesPlaySystemSound(bonkSoundID);
		AudioServicesPlaySystemSound (kSystemSoundID_Vibrate);	//vibrate
		
		//show alert
		UIAlertView *alert = [[UIAlertView alloc]
							  initWithTitle:@"Age Error"
							  message:@"Your age must be at least 40 years old and less than 100 years old"
							  delegate:nil
							  cancelButtonTitle:@"OK"
							  otherButtonTitles:nil];
		[alert show];
		[alert release];
	}
	
	else if (numTwo < 20 || numTwo > 32)
	{
		UIAlertView *alert = [[UIAlertView alloc]
							  initWithTitle:@"IOP Error"
							  message:@"Your IOP must be between 20 and 32"
							  delegate:nil
							  cancelButtonTitle:@"OK"
							  otherButtonTitles:nil];
		[alert show];
		[alert release];
	}
	
	else if (numThree < 475 || numThree > 650)
	{
		UIAlertView *alert = [[UIAlertView alloc]
							  initWithTitle:@"CCT Error"
							  message:@"Your CCT must be between 475 and 650"
							  delegate:nil
							  cancelButtonTitle:@"OK"
							  otherButtonTitles:nil];
		[alert show];
		[alert release];
	}
	
	else if (numFour < .50 || numFour > 3.00)
	{
		UIAlertView *alert = [[UIAlertView alloc]
							  initWithTitle:@"PSD Error"
							  message:@"Your PSD must be between .50 and 3.00"
							  delegate:nil
							  cancelButtonTitle:@"OK"
							  otherButtonTitles:nil];
		[alert show];
		[alert release];
	}
	
	else if (numFive < 0.80)
	{
		UIAlertView *alert = [[UIAlertView alloc]
							  initWithTitle:@"C/D Error"
							  message:@"Your C/D must be between 0 and .80"
							  delegate:nil
							  cancelButtonTitle:@"OK"
							  otherButtonTitles:nil];
		[alert show];
		[alert release];
	}
}