Execute Hooks on pages without Hooks.

[Carlos]

More on this...
What do you think would be better?

Code:

if (...) {
    add_action('footer','your_function');
}

function your_function() {
  // code...
}

Or this:

Code:

add_action('footer','your_function');

function your_function() {
  if (...) {
    // code...
  }
}

First is like Mike's tip. In the second one the check for the current page is done inside the hooked function.