function checknum(frm1) {
    if (frm1.num.value.length != 6) {
        alert('กรุณากรอกตัวเลขให้ครบ 6 ตัว');
        return false;
    } else {
        if (frm1.date_id.value == 0) {
            alert('กรุณาเลือกงวดที่ต้องการตรวจรางวัล');
            return false;
        } else {
            return true;
        }
    }
}

// Field validation function
function checkhoro(form) {
    horo_url = "http://horoscope.thaiza.com/detail_";
    ok = 1;
    if(form.period.value == 1){
        if(form.horo.value == 1){
            horo_url = horo_url + '136411.html'; 
        }else if(form.horo.value == 2){
            horo_url = horo_url + '136413.html'; 
        }else if(form.horo.value == 3){
            horo_url = horo_url + '136414.html'; 
        }else if(form.horo.value == 4){
            horo_url = horo_url + '136416.html'; 
        }else if(form.horo.value == 5){
            horo_url = horo_url + '136417.html'; 
        }else if(form.horo.value == 6){
            horo_url = horo_url + '136419.html'; 
        }else if(form.horo.value == 7){
            horo_url = horo_url + '136420.html'; 
        }else if(form.horo.value == 8){
            horo_url = horo_url + '136421.html'; 
        }else if(form.horo.value == 9){
            horo_url = horo_url + '136423.html'; 
        }else if(form.horo.value == 10){
            horo_url = horo_url + '136424.html'; 
        }else if(form.horo.value == 11){
            horo_url = horo_url + '136425.html'; 
        }else if(form.horo.value == 12){
            horo_url = horo_url + '136426.html'; 
        }else{
            ok = 0;
        }
    }else if(form.period.value == 2){
        if(form.horo.value == 1){
            horo_url = horo_url + '60080.html'; 
        }else if(form.horo.value == 2){
            horo_url = horo_url + '62172.html'; 
        }else if(form.horo.value == 3){
            horo_url = horo_url + '62173.html'; 
        }else if(form.horo.value == 4){
            horo_url = horo_url + '62174.html'; 
        }else if(form.horo.value == 5){
            horo_url = horo_url + '62175.html'; 
        }else if(form.horo.value == 6){
            horo_url = horo_url + '62176.html'; 
        }else if(form.horo.value == 7){
            horo_url = horo_url + '62178.html'; 
        }else if(form.horo.value == 8){
            horo_url = horo_url + '62179.html'; 
        }else if(form.horo.value == 9){
            horo_url = horo_url + '62180.html'; 
        }else if(form.horo.value == 10){
            horo_url = horo_url + '62181.html'; 
        }else if(form.horo.value == 11){
            horo_url = horo_url + '62182.html'; 
        }else if(form.horo.value == 12){
            horo_url = horo_url + '62183.html'; 
        }else{
            ok = 0;
        }
    }else if(form.period.value == 3){
        if(form.horo.value == 1){
            horo_url = horo_url + '60424.html'; 
        }else if(form.horo.value == 2){
            horo_url = horo_url + '60425.html'; 
        }else if(form.horo.value == 3){
            horo_url = horo_url + '60426.html'; 
        }else if(form.horo.value == 4){
            horo_url = horo_url + '61326.html'; 
        }else if(form.horo.value == 5){
            horo_url = horo_url + '61327.html'; 
        }else if(form.horo.value == 6){
            horo_url = horo_url + '61332.html'; 
        }else if(form.horo.value == 7){
            horo_url = horo_url + '61349.html'; 
        }else if(form.horo.value == 8){
            horo_url = horo_url + '61350.html'; 
        }else if(form.horo.value == 9){
            horo_url = horo_url + '61354.html'; 
        }else if(form.horo.value == 10){
            horo_url = horo_url + '61357.html'; 
        }else if(form.horo.value == 11){
            horo_url = horo_url + '61358.html'; 
        }else if(form.horo.value == 12){
            horo_url = horo_url + '61359.html'; 
        }else{
            ok = 0;
        }
    }else if(form.period.value == 4){
        if(form.horo.value == 1){
            horo_url = horo_url + '61815.html'; 
        }else if(form.horo.value == 2){
            horo_url = horo_url + '61818.html'; 
        }else if(form.horo.value == 3){
            horo_url = horo_url + '62184.html'; 
        }else if(form.horo.value == 4){
            horo_url = horo_url + '62185.html'; 
        }else if(form.horo.value == 5){
            horo_url = horo_url + '62186.html'; 
        }else if(form.horo.value == 6){
            horo_url = horo_url + '62187.html'; 
        }else if(form.horo.value == 7){
            horo_url = horo_url + '62188.html'; 
        }else if(form.horo.value == 8){
            horo_url = horo_url + '62189.html'; 
        }else if(form.horo.value == 9){
            horo_url = horo_url + '62190.html'; 
        }else if(form.horo.value == 10){
            horo_url = horo_url + '62191.html'; 
        }else if(form.horo.value == 11){
            horo_url = horo_url + '62192.html'; 
        }else if(form.horo.value == 12){
            horo_url = horo_url + '62193.html'; 
        }else{
            ok = 0;
        }
    }else{
        alert("กรุณาเลือกราศี และ ประเภทด้วยคะ");
        return false;
    }
    if(ok == 1){
        window.open (horo_url,""); 
    }else{
        alert("กรุณาเลือกราศี และ ประเภทด้วยคะ");
    }
    return false;
}