Randomize a Hook Function in my functions.php to A/B test an ad

[iamzeus]

Have an add_action my functions.php to display an adsense ad in my posts using a Hook:
genesis_after_header
add_action('genesis_after_header', 'topadd0');

However I want to A/B test this Hook&Ad vs Another Hook&Ad:
genesis_before_loop:
add_action('genesis_before_loop', 'topadd1');

How can I randomize the add_action to display only 1 in my page, either:
add_action('genesis_after_header', 'topadd0');
or
add_action('genesis_before_loop', 'topadd1');

[iamzeus]

Something like:

add_action( 'genesis_meta', 'randomhook' );
function randomhook() {
$option[0] = add_action('genesis_after_header', 'topadd0');
$option[1] = add_action('genesis_before_loop', 'topadd1');
return $option[rand()%count($option)];
}

But this one isnt really working

[Author]

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