test = document.createElement('img');
test.setAttribute('src','https://app.secure.griffith.edu.au/00/gen4-portal/gen4-portal.php');
test.onload = showIfValid;
function showIfValid() {
	if (document.getElementById('nav-global')) {
		document.getElementById('nav-global').innerHTML = '<h2 class="text">Global links</h2><ul><li><a href="/intranet/">Griffith Portal</a> | </li><li><a href="/ask-us/">Ask us</a> | </li><li><a href="/search/">Phonebook</a></li></ul>';
	}
}