( function( $ ) {
    wp.customize('blogname', function( value ) {
        value.bind( function( to ) {
            $('.blog-title a').html( to );
        } );
    } );
    wp.customize('blogdescription', function( value ) {
        value.bind( function( to ) {
            $('.blog-description').html( to );
        } );
    } );
} )( jQuery );