function createDayCombo( formname, st, fieldname, select_day ) {

   if(st =="") {
   		document.write( '<select name="' + fieldname + '" size="1">' )
   } else {
   		document.write( '<select class="' + st + '" name="' + fieldname + '" size="1">' )
   }
    for( var i=1; i<=31 ; i++ ) {
        document.write ( '<option value="' + i + '">' + i + '</option>' )
    }
    document.write( '</select>' )

    ff = eval( "document." + formname + "." + fieldname )

    if (select_day == 0) {
        startDate = new Date()
        ff.selectedIndex = startDate.getDate() - 1
    } else {
        ff.selectedIndex = select_day - 1
    }
}

function createMonthCombo( formname, st, fieldname, select_month ) {
var months = new Array( "leden","únor","březen","duben","květen","červen","červenec","srpen","září","říjen","listopad","prosinec")

     if(st =="") {
   		document.write( '<select name="' + fieldname + '" size="1">' )
   } else {
   		document.write( '<select class="' + st + '" name="' + fieldname + '" size="1">' )
   }
    for( var i=1; i<=12 ; i++ ) {
        document.write ( '<option value="' + i + '">' + months[i-1] + '</OPTION>' )
    }
    document.write( '</select>' )

    ff = eval( "document." + formname + "." + fieldname )

    if (select_month == 0) {
        startDate = new Date()
        ff.selectedIndex = startDate.getMonth()
    } else {
        ff.selectedIndex = select_month - 1
    }
}

function createYearCombo( formname, st, fieldname, select_year ) {

    var firstyear = 2022;
    var lastyear = 2026;
    if(st =="") {
   		document.write( '<select name="' + fieldname + '" size="1">' )
   } else {
   		document.write( '<select class="' + st + '" name="' + fieldname + '" size="1">' )
   }
    for( var i=firstyear; i<=lastyear ; i++ ) {
        document.write ( '<option value="' + i + '">' + i + '</option>' )
    }
    document.write( '</select>' )

    ff = eval( "document." + formname + "." + fieldname )

    if (select_year == 0) {
        startDate = new Date()
        year = startDate.getYear()
        year = year < 999 ? year + 1900 : year
        ff.selectedIndex = year - firstyear
    } else {
        ff.selectedIndex = select_year - firstyear
    }
}