/**
 * Linki rel="external" -->> target="_blank"
 */
function externalLinks() {
    if (!document.getElementsByTagName) {
        return;
    }// if

    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";
        }// if
    }// for
}// function externalLinks()


/**
 * EventListener
 */
if(window.addEventListener) {
    window.addEventListener("load", externalLinks, false);
} else if(window.attachEvent) {
    window.attachEvent("onload", externalLinks);
} // if