function handle_popups()
{
	if(!document.getElementsByTagName) {
		return;
	}

	var anchors = document.getElementsByTagName("a");
	for(var i = 0; i < anchors.length; i++) {
		var anchor = anchors[i];

		if(anchor.getAttribute("href") && anchor.getAttribute("rel") == "external") {
			anchor.onclick = function () {open_new_window(this.href); return false;};
		}
	}
}

function open_new_window(url)
{
	window.open(url);
	return false;
}

addEvent(document, 'domload',  handle_popups);