Add a System Framework in iphone sdk project

To add a system framework like OpenAl.framework in your project follow the steps:
1. Go to Project menu->Add to project->now select framework.
2. framework path is:
System->developer->platform->iPhone Simulator->developer->SDKs-> iPhoneSimulator 2.2 sdk->System->Library->Frameworks
3. select OpenAL.framework and click Add button
4. again click Add button to add the framework in your project.