function externalLinks() {
    if (!document.getElementsByTagName) {
        return;
    }
    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";
        }
    }
}
function submitenter(myfield,e)
{
    var keycode;
    if (window.event) keycode = window.event.keyCode;
    else if (e) keycode = e.which;
    else return true;

    if (keycode == 13)
    {
        myfield.form.submit();
        return false;
    }
    else
        return true;
}