Adding "_blank" of all links

var anchors = document.getElementById('div').getElementsByTagName('a');

var sDom    = document.domain;

for (var i=0; i<anchors.length; i++) {

var anchor = anchors[i];

if (anchor.getAttribute("href")) {

iPosition = anchor.href.indexOf(sDom);

if (iPosition == -1 || 

iPosition > sDom.length) {

anchor.target = "_blank";

}

}

}