function navigator() {
 var ele = window.document.forms[0];
 durl=(ele.isnlist.options[ele.isnlist.selectedIndex].value);
/* For purposes of this demo for you, we've included a JavaScript
   Alert box confirmation in this script. If you don't want it
   in your script, comment out the next section and "uncomment"
   the commented line below it (location.href=durl) */
/* durlconfirm="Are you certain you wish to go to "+durl+"?"; 
 if (confirm(durlconfirm)) {
  location.href=durl;
 } */ 
//location.href=durl;
ele.submit();
}