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";
 }
}
window.onload = externalLinks;
function sel_go_url(ob) {
        var tURL = ob.options[ob.selectedIndex].value;
        if ( tURL == '' ) return;
        window.open(tURL,'Luna Newsletter','toolbar=1,location=1,directories=1,status=1,menubar=1,scrollbars=1,resizable=1,width=690,height=800');
}
function swapImg(id,im) {
 document.getElementById(id).src = im;
}