function linkPop(link, lref){
    link.onclick = function(){
        window.open(lref, "HRpopup", 'top=100, left=100, resizable=yes, status=yes, width=710, height=500, toolbar=yes, scrollbars=yes');
        return false;
    }
}

function addPopup(elm) {
    var links = elm.getElementsByTagName('a');
    for (var i=0; i < links.length; i++){
        if (links[i].getAttribute('target') == '_blank'){
            var linkref = links[i].getAttribute('href');
            linkPop(links[i], linkref);
        }
    }
}

addLoadEvent(function(){
    var middleContent = document.getElementById("middle-content");
    var rightContent = document.getElementById("right-content");
    addPopup(middleContent);
    addPopup(rightContent);
})