jQuery open all external links in a new window

newExternalWindows.js

$("a").filter(function () {
     return this.hostname && this.hostname.replace(/^www\./, '') !== location.hostname.replace(/^www\./, '');
 }).each(function () {
     $(this).attr({
         target: "_blank",
         title: "Visit " + this.href + " (click to open in a new window)"
     });
 });