Hi! I need a code example that can do the following:

- Load a uiWebview URL upon first opening with the user's Latitude/Longitude coordinates as part of the requesting URL. For example, determine the user's coordinates and turn them into a URL: http://example.com?lat=111.2222&lng=333.4444
-> Then promptly display that URL in a reusable webview.

- If the UIWebview being displayed to the user were to popup a javascript alert, I simply need that alert never shown to the user and instead want the alert's text to be stored as a variable in the app so I may access that variable later when I choose to do so.

- Scan a barcode using Zxing and store the barcode scan as a text variable (in the same manner as we're doing with the javascript alert above). Zxing is free and found here: http://code.google.com/p/zxing/

Lastly, I am asking for the code to have as many comments explaining what each chunk of code is doing. I am not asking for every single line to be commented, but as I am obviously new to coding as much as possible within a clean code layout is appreciated.

That's it! I need the full source code of this example for iPhone. I am not sure if iPad would be completely different code, but if you know both and can include the same example for both platforms it would be extremely helpful. Thank you!