Problem With Settings API

I wanted to add options page to my theme in Appearance menu using Settings API.

I used the following code but could not save the data entered in the field. Can some one tell what is wrong in my code?

I added following code in functions.php in theme directory.

code is here http://wordpress.pastebin.com/KpqVPsBg

I had coded as it is explained in settings api manual. http://codex.wordpress.org/Settings_API