function ExternalLinks() {
	var i;
	links = $$('a[href^="http://"]');
	for(i = 0; i < links.length; i++) {
		links[i].onclick = NewWindow;
	}
	return false;
}

function NewWindow() {
	var popup = window.open(this.href);
	popup.focus();
	return false;
}

document.observe("dom:loaded", function() { 
	ExternalLinks(); 
});