function openwin()
{
  var wichn=navigator.appName;  var wichv=parseInt(navigator.appVersion);   var upname = "bfforma_serv.htm";   var winnam = "win";   var winset = "toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=0,resizable=1,top=120,left=200";
  if (wichn=="Netscape" && wichv<=3)
    {
     var winset = winset + ",width=360,height=500";   var winup = window.open("",winnam,winset);
    }
   else
    {
     var winset = winset + ",width=360,height=500";   var winup = window.open("",winnam,winset);
    }

   winup.location = upname;

}
openwin();