I\'m a little confused how to do this, basically I have a page that has a Facebook Share button inserted via JavaScript:
Try something like this:
$(document).ready(function() {
var script = document.createElement( 'script' );
script.src = "http://static.ak.fbcdn.net/connect.php/js/FB.Share";
script.onload=optionallyDoSomethingWithTheScriptYouJustLoaded();//not needed
var headID = document.getElementsByTagName("head")[0];
headID.appendChild(script);
});