If, after installing Java for OS X 2013-001 and the latest version of Java 7 from Oracle, you want to disable Java 7 and re-enable the Apple-provided Java SE 6 plug-in, follow these steps.

Note: You must be logged in as an administrator. If prompted for your administrator password after a command, enter it and then press the Return or Enter key.

1. Open Terminal, located in the Utilities folder.
2. Enter this command, then press the Return or Enter key:
   

   sudo mkdir -p /Library/Internet\ Plug-Ins/disabled 

3. Enter this command, then press the Return or Enter key:
   

   sudo mv /Library/Internet\ Plug-Ins/JavaAppletPlugin.plugin /Library/Internet\ Plug-Ins/disabled

4. Enter this command, then press the Return or Enter key:
   

   sudo ln -sf /System/Library/Java/Support/Deploy.bundle/Contents/Resources/JavaPlugin2_NPAPI.plugin /Library/Internet\ Plug-Ins/JavaAppletPlugin.plugin 

5. To re-enable Java SE 6 Web Start, enter this command, then press the Return or Enter key:
   

   sudo ln -sf /System/Library/Frameworks/JavaVM.framework/Commands/javaws /usr/bin/javaws