// JavaScript Document

function externalLinks() {
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(event){return popupWindow(this, event);}
anchor.onkeypress = function(event){return popupWindow(this, event);}
}
}
}
 
function popupWindow(anchor, event){
var keyCode;
if (event && event.type == 'keypress') {
if (event.keyCode)
keyCode = event.keyCode;
else if (event.which)
keyCode = event.which;
// 13 == Return key. 32 == space key
if (keyCode != 13 && keyCode != 32)
return true;
}
return !window.open(anchor);
}
window.onload = externalLinks;