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.target = "_blank";
}
}

function popWindow(url){
	infowindow = window.open (url, "Info", "location=1,status=1,scrollbars=1,width=400,height=600");
	//infowindow.moveTo(0,0);
}

window.onload = externalLinks;