function determineYears(form) {
               var curDate = new Date();
               if (navigator.appName == "Netscape") {
                   var curYear = curDate.getYear()+1900;
               } else { 
                   var curYear = curDate.getYear();
               }

               if ( (curDate.getMonth() == 11) && (curDate.getDate()>15) ) {
	curYear = curYear + 1;
               }

               if( ( curYear-2 )!=1999 ) {
	// 2 years before
	form.year.options.length=4;
	form.year.options[3].value = curYear-2;
	form.year.options[3].text = curYear-2;
               } else {
	form.year.options.length=3;
               }
               // 1 year before
               form.year.options[2].value = curYear-1;
               form.year.options[2].text = curYear-1;
               // current year
               form.year.options[1].value = curYear ;
               form.year.options[1].text = curYear ;
               }