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.getAttribute("rel") == "nofollow") ) {
			anchor.target = "_blank";
		} else if( anchor.getAttribute("href") && anchor.getAttribute("rel") == "popup") {
			anchor.onclick = function() { window.open(this.href,'_blank',"height=375,width=475,status=no,toolbar=no,menubar=no,scrollbars=yes,resizable=yes"); return false; };
		}
	}
}
addEvent(window,'load',externalLinks);