function init() {
	var links = document.getElementsByTagName('a');
	for (var i = links.length; i != 0; i--) {
		var a = links[i-1];
		if (!a.href) continue;
		if (a.className && a.className.indexOf('external') != -1) a.onclick = PopWin;
	}
}
    
function PopWin(e) {
	if (!e) var e = window.event;
	var a = e.target ? e.target : e.srcElement;
	while (!a.href) {
		a=a.parentNode;
	}
	var newwin = window.open(a.href);
	return !newwin;                               
}
	
onload = init;