wp-content/themes/twentyeleven/inc/theme-customizer.js

   1 ( function( $ ){
   2         wp.customize( 'blogname', function( value ) {
   3                 value.bind( function( to ) {
   4                         $( '#site-title a' ).html( to );
   5                 } );
   6         } );
   7         wp.customize( 'blogdescription', function( value ) {
   8                 value.bind( function( to ) {
   9                         $( '#site-description' ).html( to );
  10                 } );
  11         } );
  12 } )( jQuery );