gistfile1.js

// this goes into every page where the hijack will take place
// or where the hijack will land
function hijack (abs, landing) {
  // make sure its actually a #jump=
  if (window.location.hash.indexOf("#jump=") !== -1) {
    // trim off jump= and redirect
    url = window.location.hash.substr(6);
    window.setTimeout(function(){
      window.location = url;
    }, 2000);
  }
  // capture all a href elements and replace with landing
  var element = document.getElementsByTagName('a');
  for (var i = 0; i < element.length; i++) {
    // check if the url is absolute or not
    if (element[i].getAttribute('href').indexOf('http') == 0) {
      element[i]['href'] = landing + element[i].getAttribute('href');
    }
    else {
      element[i]['href'] = abs + landing + element[i].getAttribute('href');
    }
  }
}
hijack('http://ncat.edu/', 'ad.html#jump=');