target_blank--external.js

/**
* Open external links in new tab/window
*/
 
// All http:// links should open in new tab/window. Internal links are relative.
var anchors = document.getElementsByTagName('a');
 
for (var i = 0; i < anchors.length; i++) {
    anchor = anchors[i];
                                                                                 
    if (anchor.host !== window.location.host &&
       !anchor.hasAttribute('no-external')) {
                                                                                 
        anchor.setAttribute('target', '_blank');
    }
}