function whichBrowser(){
  if(navigator.appVersion<4){
     alert("You need MSIE 4.x or Netscape Navigator 4.x to view Medipac Travel Insurance Application.")
     return false;
  }
  return true;
}

function launchPage(){
  if(!whichBrowser()){return;}
  window.open("cashows.html","cashows",'status=yes,toolbar=no,location=no,scrollbars=yes,resizable=yes,directories=no,menuBar=yes');
}