带有计算器的Javascript列表不起作用

1. 在你的小提琴中，JS代码被设置为加载在Load上。这意味着它被 document.onLoad 包装，并且不会全局可用，因此您的 HTML 标记将无法访问您的函数。

2. 您的 html 中没有定义带有 id/class "includeInscription" 的元素。

我删除了函数inscriptionPrice()以及在函数calculatePrice()中对它的引用。请在下面查看。

function validateForm()
{
var x=document.forms["slider-form"]["date_from"].value;
if (x==null || x=="")
  {
  alert("Date and Time must be filled out");
  return false;
  }
var y=document.forms["slider-form"]["nereden_y"].value;
if (y==null || y=="")
  {
  alert("Pick-up Location must be selected");
  return false;
  }
var y=document.forms["slider-form"]["nereye_y"].value;
if (y==null || y=="")
  {
  alert("Drop-off Location must be selected");
  return false;
  }
}
 
 
 var nereden_bedel = new Array();
 nereden_bedel["Atatürk Airport (IST)"]=0;
 nereden_bedel["Sabiha Gökçen Airport (SAW)"]=0;
 nereden_bedel["Ports - Karaköy, Salıpazarı, Kabataş"]=0;
 nereden_bedel["Old City - Sultanahmet - Sirkeci"]=0;
 nereden_bedel["Taksim - Beyoğlu, Pera, Nişantaşı"]=0;
 nereden_bedel["Beşiktaş - Ortaköy"]=0;
 nereden_bedel["Yenikapı - Aksaray, Laleli"]=0;
 nereden_bedel["Bakırköy - Yenibosna, Zeytinburnu, Sefaköy"]=0;
 nereden_bedel["Otogar - Bayrampaşa, Bağcılar, Esenler"]=0;
 nereden_bedel["Şişli - Maslak, Levent, Etiler"]=0;
 nereden_bedel["Topkapı - Fındıkzade, Vatan Cad"]=0;
 nereden_bedel["Eyüp - Gaziosmanpaşa, Haliç"]=0;
 nereden_bedel["Mecidiyeköy - Bomonti, Çağlayan"]=0;
 nereden_bedel["Kadıköy - Ataşehir, Bostancı"]=0;
 nereden_bedel["Üsküdar - Harem, Haydarpaşa"]=0;
 var Ap_bedel= new Array();
 Ap_bedel["Atatürk Airport (IST)"]=0;
 Ap_bedel["Sabiha Gökçen Airport (SAW)"]=60; 
 Ap_bedel["Ports - Karaköy, Salıpazarı, Kabataş"]=35;
 Ap_bedel["Old City - Sultanahmet - Sirkeci"]=25;
 Ap_bedel["Taksim - Beyoğlu, Pera, Nişantaşı"]=30;
 Ap_bedel["Beşiktaş - Ortaköy"]=40;
 Ap_bedel["Yenikapı - Aksaray, Laleli"]=25;
 Ap_bedel["Bakırköy - Yenibosna, Zeytinburnu, Sefaköy"]=25;
 Ap_bedel["Otogar - Bayrampaşa, Bağcılar, Esenler"]=30;
 Ap_bedel["Şişli - Maslak, Levent, Etiler"]=40;
 Ap_bedel["Topkapı - Fındıkzade, Vatan Cad"]=25;
 Ap_bedel["Eyüp - Gaziosmanpaşa, Haliç"]=35;
 Ap_bedel["Mecidiyeköy - Bomonti, Çağlayan"]=40;
 Ap_bedel["Avcılar - Beylikdüzü, Esenyurt"]=35;
 Ap_bedel["Pendik - Tuzla, Kurtköy"]=70;
 Ap_bedel["Kadıköy - Ataşehir, Bostancı"]=55;
 Ap_bedel["Silivri - Selimpaşa, Kumburgaz"]=100;
 Ap_bedel["Üsküdar - Harem, Haydarpaşa"]=50;
 Ap_bedel["Kartal - Maltepe, Ümraniye"]=60;
 Ap_bedel["Kilyos"]=80;
 Ap_bedel["Şile - Ağva"]=85;
 Ap_bedel["Beykoz - Kavacık, And.Hisarı"]=55;
 Ap_bedel["Sarıyer- Tarabya, Yeniköy"]=45;
 Ap_bedel["Gebze"]=75;
 Ap_bedel["Izmit"]=120;
 Ap_bedel["Bursa - Uludağ"]=320;
 Ap_bedel["Bolu - Abant"]=320;
 Ap_bedel["Yalova"]=220;
 Ap_bedel["Çanakkale - Gelibolu"]=350;
 Ap_bedel["Edirne - Tekirdağ"]=350;
 
 var Bp_bedel= new Array();
 Bp_bedel["Atatürk Airport (IST)"]=60;
 Bp_bedel["Sabiha Gökçen Airport (SAW)"]=0;
 Bp_bedel["Ports - Karaköy, Salıpazarı, Kabataş"]=55;
 Bp_bedel["Old City - Sultanahmet - Sirkeci"]=55;
 Bp_bedel["Taksim - Beyoğlu, Pera, Nişantaşı"]=55;
 Bp_bedel["Beşiktaş - Ortaköy"]=55;
 Bp_bedel["Yenikapı - Aksaray, Laleli"]=55;
 Bp_bedel["Bakırköy - Yenibosna, Zeytinburnu, Sefaköy"]=60;
 Bp_bedel["Otogar - Bayrampaşa, Bağcılar, Esenler"]=60;
 Bp_bedel["Şişli - Maslak, Levent, Etiler"]=55;
 Bp_bedel["Topkapı - Fındıkzade, Vatan Cad"]=55;
 Bp_bedel["Eyüp - Gaziosmanpaşa, Haliç"]=60;
 Bp_bedel["Mecidiyeköy - Bomonti, Çağlayan"]=60;
 Bp_bedel["Avcılar - Beylikdüzü, Esenyurt"]=80;
 Bp_bedel["Pendik - Tuzla, Kurtköy"]=65;
 Bp_bedel["Kadıköy - Ataşehir, Bostancı"]=55;
 Bp_bedel["Silivri - Selimpaşa, Kumburgaz"]=120;
 Bp_bedel["Üsküdar - Harem, Haydarpaşa"]=50;
 Bp_bedel["Kartal - Maltepe, Ümraniye"]=55;
 Bp_bedel["Kilyos"]=95;
 Bp_bedel["Şile - Ağva"]=85;
 Bp_bedel["Beykoz - Kavacık, And.Hisarı"]=55;
 Bp_bedel["Sarıyer- Tarabya, Yeniköy"]=65;
 Bp_bedel["Gebze"]=60;
 Bp_bedel["Izmit"]=95;
 Bp_bedel["Bursa - Uludağ"]=320;
 Bp_bedel["Bolu - Abant"]=320;
 Bp_bedel["Yalova"]=220;
 Bp_bedel["Çanakkale - Gelibolu"]=350;
 Bp_bedel["Edirne - Tekirdağ"]=350;
 
 var Cp_bedel= new Array();
 Cp_bedel["Atatürk Airport (IST)"]=35;
 Cp_bedel["Sabiha Gökçen Airport (SAW)"]=55;
 Cp_bedel["Ports - Karaköy, Salıpazarı, Kabataş"]=0;
 Cp_bedel["Old City - Sultanahmet - Sirkeci"]=25;
 Cp_bedel["Taksim - Beyoğlu, Pera, Nişantaşı"]=30;
 Cp_bedel["Beşiktaş - Ortaköy"]=30;
 Cp_bedel["Yenikapı - Aksaray, Laleli"]=25;
 Cp_bedel["Bakırköy - Yenibosna, Zeytinburnu, Sefaköy"]=30;
 Cp_bedel["Otogar - Bayrampaşa, Bağcılar, Esenler"]=30;
 Cp_bedel["Şişli - Maslak, Levent, Etiler"]=40;
 Cp_bedel["Topkapı - Fındıkzade, Vatan Cad"]=30;
 Cp_bedel["Eyüp - Gaziosmanpaşa, Haliç"]=45;
 Cp_bedel["Mecidiyeköy - Bomonti, Çağlayan"]=40;
 Cp_bedel["Avcılar - Beylikdüzü, Esenyurt"]=45;
 Cp_bedel["Pendik - Tuzla, Kurtköy"]=55;
 Cp_bedel["Kadıköy - Ataşehir, Bostancı"]=50;
 Cp_bedel["Silivri - Selimpaşa, Kumburgaz"]=80;
 Cp_bedel["Üsküdar - Harem, Haydarpaşa"]=50;
 Cp_bedel["Kartal - Maltepe, Ümraniye"]=50;
 Cp_bedel["Kilyos"]=80;
 Cp_bedel["Şile - Ağva"]=85;
 Cp_bedel["Beykoz - Kavacık, And.Hisarı"]=55;
 Cp_bedel["Sarıyer- Tarabya, Yeniköy"]=40;
 Cp_bedel["Gebze"]=75;
 Cp_bedel["Izmit"]=110;
 Cp_bedel["Bursa - Uludağ"]=320;
 Cp_bedel["Bolu - Abant"]=320;
 Cp_bedel["Yalova"]=220;
 Cp_bedel["Çanakkale - Gelibolu"]=350;
 Cp_bedel["Edirne - Tekirdağ"]=350;
 
 var Dp_bedel= new Array();
 Dp_bedel["Atatürk Airport (IST)"]=25;
 Dp_bedel["Sabiha Gökçen Airport (SAW)"]=55;
 Dp_bedel["Ports - Karaköy, Salıpazarı, Kabataş"]=25;
 Dp_bedel["Old City - Sultanahmet - Sirkeci"]=0;
 Dp_bedel["Taksim - Beyoğlu, Pera, Nişantaşı"]=30;
 Dp_bedel["Beşiktaş - Ortaköy"]=30;
 Dp_bedel["Yenikapı - Aksaray, Laleli"]=25;
 Dp_bedel["Bakırköy - Yenibosna, Zeytinburnu, Sefaköy"]=25;
 Dp_bedel["Otogar - Bayrampaşa, Bağcılar, Esenler"]=25;
 Dp_bedel["Şişli - Maslak, Levent, Etiler"]=30;
 Dp_bedel["Topkapı - Fındıkzade, Vatan Cad"]=25;
 Dp_bedel["Eyüp - Gaziosmanpaşa, Haliç"]=35;
 Dp_bedel["Mecidiyeköy - Bomonti, Çağlayan"]=35;
 Dp_bedel["Avcılar - Beylikdüzü, Esenyurt"]=45;
 Dp_bedel["Pendik - Tuzla, Kurtköy"]=55;
 Dp_bedel["Kadıköy - Ataşehir, Bostancı"]=50;
 Dp_bedel["Silivri - Selimpaşa, Kumburgaz"]=80;
 Dp_bedel["Üsküdar - Harem, Haydarpaşa"]=50;
 Dp_bedel["Kartal - Maltepe, Ümraniye"]=50;
 Dp_bedel["Kilyos"]=80;
 Dp_bedel["Şile - Ağva"]=85;
 Dp_bedel["Beykoz - Kavacık, And.Hisarı"]=55;
 Dp_bedel["Sarıyer- Tarabya, Yeniköy"]=45;
 Dp_bedel["Gebze"]=75;
 Dp_bedel["Izmit"]=110;
 Dp_bedel["Bursa - Uludağ"]=320;
 Dp_bedel["Bolu - Abant"]=320;
 Dp_bedel["Yalova"]=220;
 Dp_bedel["Çanakkale - Gelibolu"]=350;
 Dp_bedel["Edirne - Tekirdağ"]=350;
 
 var Ep_bedel= new Array();
 Ep_bedel["Atatürk Airport (IST)"]=30;
 Ep_bedel["Sabiha Gökçen Airport (SAW)"]=55;
 Ep_bedel["Ports - Karaköy, Salıpazarı, Kabataş"]=30;
 Ep_bedel["Old City - Sultanahmet - Sirkeci"]=30;
 Ep_bedel["Taksim - Beyoğlu, Pera, Nişantaşı"]=0;
 Ep_bedel["Beşiktaş - Ortaköy"]=30;
 Ep_bedel["Yenikapı - Aksaray, Laleli"]=25;
 Ep_bedel["Bakırköy - Yenibosna, Zeytinburnu, Sefaköy"]=30;
 Ep_bedel["Otogar - Bayrampaşa, Bağcılar, Esenler"]=30;
 Ep_bedel["Şişli - Maslak, Levent, Etiler"]=30;
 Ep_bedel["Topkapı - Fındıkzade, Vatan Cad"]=25;
 Ep_bedel["Eyüp - Gaziosmanpaşa, Haliç"]=45;
 Ep_bedel["Mecidiyeköy - Bomonti, Çağlayan"]=35;
 Ep_bedel["Avcılar - Beylikdüzü, Esenyurt"]=45;
 Ep_bedel["Pendik - Tuzla, Kurtköy"]=55;
 Ep_bedel["Kadıköy - Ataşehir, Bostancı"]=50;
 Ep_bedel["Silivri - Selimpaşa, Kumburgaz"]=80;
 Ep_bedel["Üsküdar - Harem, Haydarpaşa"]=50;
 Ep_bedel["Kartal - Maltepe, Ümraniye"]=50;
 Ep_bedel["Kilyos"]=80;
 Ep_bedel["Şile - Ağva"]=85;
 Ep_bedel["Beykoz - Kavacık, And.Hisarı"]=55;
 Ep_bedel["Sarıyer- Tarabya, Yeniköy"]=40;
 Ep_bedel["Gebze"]=75;
 Ep_bedel["Izmit"]=110;
 Ep_bedel["Bursa - Uludağ"]=320;
 Ep_bedel["Bolu - Abant"]=320;
 Ep_bedel["Yalova"]=220;
 Ep_bedel["Çanakkale - Gelibolu"]=350;
 Ep_bedel["Edirne - Tekirdağ"]=350;
 
 var Fp_bedel= new Array();
 Fp_bedel["Atatürk Airport (IST)"]=40;
 Fp_bedel["Sabiha Gökçen Airport (SAW)"]=55;
 Fp_bedel["Ports - Karaköy, Salıpazarı, Kabataş"]=30;
 Fp_bedel["Old City - Sultanahmet - Sirkeci"]=30;
 Fp_bedel["Taksim - Beyoğlu, Pera, Nişantaşı"]=30;
 Fp_bedel["Beşiktaş - Ortaköy"]=0;
 Fp_bedel["Yenikapı - Aksaray, Laleli"]=25;
 Fp_bedel["Bakırköy - Yenibosna, Zeytinburnu, Sefaköy"]=40;
 Fp_bedel["Otogar - Bayrampaşa, Bağcılar, Esenler"]=35;
 Fp_bedel["Şişli - Maslak, Levent, Etiler"]=30;
 Fp_bedel["Topkapı - Fındıkzade, Vatan Cad"]=30;
 Fp_bedel["Eyüp - Gaziosmanpaşa, Haliç"]=0;
 Fp_bedel["Mecidiyeköy - Bomonti, Çağlayan"]=15;
 Fp_bedel["Avcılar - Beylikdüzü, Esenyurt"]=45;
 Fp_bedel["Pendik - Tuzla, Kurtköy"]=55;
 Fp_bedel["Kadıköy - Ataşehir, Bostancı"]=50;
 Fp_bedel["Silivri - Selimpaşa, Kumburgaz"]=85;
 Fp_bedel["Üsküdar - Harem, Haydarpaşa"]=50;
 Fp_bedel["Kartal - Maltepe, Ümraniye"]=55;
 Fp_bedel["Kilyos"]=80;
 Fp_bedel["Şile - Ağva"]=85;
 Fp_bedel["Beykoz - Kavacık, And.Hisarı"]=0;
 Fp_bedel["Sarıyer- Tarabya, Yeniköy"]=40;
 Fp_bedel["Gebze"]=75;
 Fp_bedel["Izmit"]=110;
 Fp_bedel["Bursa - Uludağ"]=320;
 Fp_bedel["Bolu - Abant"]=320;
 Fp_bedel["Yalova"]=220;
 Fp_bedel["Çanakkale - Gelibolu"]=350;
 Fp_bedel["Edirne - Tekirdağ"]=350;
 
 var Gp_bedel= new Array();
 Gp_bedel["Atatürk Airport (IST)"]=25;
 Gp_bedel["Sabiha Gökçen Airport (SAW)"]=55;
 Gp_bedel["Ports - Karaköy, Salıpazarı, Kabataş"]=25;
 Gp_bedel["Old City - Sultanahmet - Sirkeci"]=25;
 Gp_bedel["Taksim - Beyoğlu, Pera, Nişantaşı"]=35;
 Gp_bedel["Beşiktaş - Ortaköy"]=0;
 Gp_bedel["Yenikapı - Aksaray, Laleli"]=25;
 Gp_bedel["Bakırköy - Yenibosna, Zeytinburnu, Sefaköy"]=25;
 Gp_bedel["Otogar - Bayrampaşa, Bağcılar, Esenler"]=30;
 Gp_bedel["Şişli - Maslak, Levent, Etiler"]=30;
 Gp_bedel["Topkapı - Fındıkzade, Vatan Cad"]=25;
 Gp_bedel["Eyüp - Gaziosmanpaşa, Haliç"]=0;
 Gp_bedel["Mecidiyeköy - Bomonti, Çağlayan"]=0;
 Gp_bedel["Avcılar - Beylikdüzü, Esenyurt"]=45;
 Gp_bedel["Pendik - Tuzla, Kurtköy"]=60;
 Gp_bedel["Kadıköy - Ataşehir, Bostancı"]=55;
 Gp_bedel["Silivri - Selimpaşa, Kumburgaz"]=80;
 Gp_bedel["Üsküdar - Harem, Haydarpaşa"]=50;
 Gp_bedel["Kartal - Maltepe, Ümraniye"]=50;
 Gp_bedel["Kilyos"]=80;
 Gp_bedel["Şile - Ağva"]=85;
 Gp_bedel["Beykoz - Kavacık, And.Hisarı"]=0;
 Gp_bedel["Sarıyer- Tarabya, Yeniköy"]=45;
 Gp_bedel["Gebze"]=75;
 Gp_bedel["Izmit"]=110;
 Gp_bedel["Bursa - Uludağ"]=320;
 Gp_bedel["Bolu - Abant"]=320;
 Gp_bedel["Yalova"]=220;
 Gp_bedel["Çanakkale - Gelibolu"]=350;
 Gp_bedel["Edirne - Tekirdağ"]=350;
 
 var Hp_bedel= new Array();
 Hp_bedel["Atatürk Airport (IST)"]=25;
 Hp_bedel["Sabiha Gökçen Airport (SAW)"]=60;
 Hp_bedel["Ports - Karaköy, Salıpazarı, Kabataş"]=30;
 Hp_bedel["Old City - Sultanahmet - Sirkeci"]=25;
 Hp_bedel["Taksim - Beyoğlu, Pera, Nişantaşı"]=30;
 Hp_bedel["Beşiktaş - Ortaköy"]=40;
 Hp_bedel["Yenikapı - Aksaray, Laleli"]=25;
 Hp_bedel["Bakırköy - Yenibosna, Zeytinburnu, Sefaköy"]=0;
 Hp_bedel["Otogar - Bayrampaşa, Bağcılar, Esenler"]=30;
 Hp_bedel["Şişli - Maslak, Levent, Etiler"]=40;
 Hp_bedel["Topkapı - Fındıkzade, Vatan Cad"]=25;
 Hp_bedel["Eyüp - Gaziosmanpaşa, Haliç"]=0;
 Hp_bedel["Mecidiyeköy - Bomonti, Çağlayan"]=30;
 Hp_bedel["Avcılar - Beylikdüzü, Esenyurt"]=35;
 Hp_bedel["Pendik - Tuzla, Kurtköy"]=75;
 Hp_bedel["Kadıköy - Ataşehir, Bostancı"]=65;
 Hp_bedel["Silivri - Selimpaşa, Kumburgaz"]=70;
 Hp_bedel["Üsküdar - Harem, Haydarpaşa"]=65;
 Hp_bedel["Kartal - Maltepe, Ümraniye"]=65;
 Hp_bedel["Kilyos"]=80;
 Hp_bedel["Şile - Ağva"]=85;
 Hp_bedel["Beykoz - Kavacık, And.Hisarı"]=0;
 Hp_bedel["Sarıyer- Tarabya, Yeniköy"]=45;
 Hp_bedel["Gebze"]=85;
 Hp_bedel["Izmit"]=120;
 Hp_bedel["Bursa - Uludağ"]=320;
 Hp_bedel["Bolu - Abant"]=320;
 Hp_bedel["Yalova"]=220;
 Hp_bedel["Çanakkale - Gelibolu"]=350;
 Hp_bedel["Edirne - Tekirdağ"]=350;
 
 var Ip_bedel= new Array();
 Ip_bedel["Atatürk Airport (IST)"]=30;
 Ip_bedel["Sabiha Gökçen Airport (SAW)"]=60;
 Ip_bedel["Ports - Karaköy, Salıpazarı, Kabataş"]=30;
 Ip_bedel["Old City - Sultanahmet - Sirkeci"]=25;
 Ip_bedel["Taksim - Beyoğlu, Pera, Nişantaşı"]=30;
 Ip_bedel["Beşiktaş - Ortaköy"]=35;
 Ip_bedel["Yenikapı - Aksaray, Laleli"]=25;
 Ip_bedel["Bakırköy - Yenibosna, Zeytinburnu, Sefaköy"]=30;
 Ip_bedel["Otogar - Bayrampaşa, Bağcılar, Esenler"]=0;
 Ip_bedel["Şişli - Maslak, Levent, Etiler"]=40;
 Ip_bedel["Topkapı - Fındıkzade, Vatan Cad"]=25;
 Ip_bedel["Eyüp - Gaziosmanpaşa, Haliç"]=0;
 Ip_bedel["Mecidiyeköy - Bomonti, Çağlayan"]=25;
 Ip_bedel["Avcılar - Beylikdüzü, Esenyurt"]=45;
 Ip_bedel["Pendik - Tuzla, Kurtköy"]=55;
 Ip_bedel["Kadıköy - Ataşehir, Bostancı"]=60;
 Ip_bedel["Silivri - Selimpaşa, Kumburgaz"]=80;
 Ip_bedel["Üsküdar - Harem, Haydarpaşa"]=60;
 Ip_bedel["Kartal - Maltepe, Ümraniye"]=55;
 Ip_bedel["Kilyos"]=80;
 Ip_bedel["Şile - Ağva"]=85;
 Ip_bedel["Beykoz - Kavacık, And.Hisarı"]=80;
 Ip_bedel["Sarıyer- Tarabya, Yeniköy"]=50;
 Ip_bedel["Gebze"]=80;
 Ip_bedel["Izmit"]=110;
 Ip_bedel["Bursa - Uludağ"]=320;
 Ip_bedel["Bolu - Abant"]=320;
 Ip_bedel["Yalova"]=220;
 Ip_bedel["Çanakkale - Gelibolu"]=350;
 Ip_bedel["Edirne - Tekirdağ"]=350;
 
 var Jp_bedel= new Array();
 Jp_bedel["Atatürk Airport (IST)"]=40;
 Jp_bedel["Sabiha Gökçen Airport (SAW)"]=55;
 Jp_bedel["Ports - Karaköy, Salıpazarı, Kabataş"]=40;
 Jp_bedel["Old City - Sultanahmet - Sirkeci"]=30;
 Jp_bedel["Taksim - Beyoğlu, Pera, Nişantaşı"]=30;
 Jp_bedel["Beşiktaş - Ortaköy"]=30;
 Jp_bedel["Yenikapı - Aksaray, Laleli"]=30;
 Jp_bedel["Bakırköy - Yenibosna, Zeytinburnu, Sefaköy"]=40;
 Jp_bedel["Otogar - Bayrampaşa, Bağcılar, Esenler"]=40;
 Jp_bedel["Şişli - Maslak, Levent, Etiler"]=0;
 Jp_bedel["Topkapı - Fındıkzade, Vatan Cad"]=30;
 Jp_bedel["Eyüp - Gaziosmanpaşa, Haliç"]=30;
 Jp_bedel["Mecidiyeköy - Bomonti, Çağlayan"]=0;
 Jp_bedel["Avcılar - Beylikdüzü, Esenyurt"]=50;
 Jp_bedel["Pendik - Tuzla, Kurtköy"]=80;
 Jp_bedel["Kadıköy - Ataşehir, Bostancı"]=40;
 Jp_bedel["Silivri - Selimpaşa, Kumburgaz"]=80;
 Jp_bedel["Üsküdar - Harem, Haydarpaşa"]=50;
 Jp_bedel["Kartal - Maltepe, Ümraniye"]=110;
 Jp_bedel["Kilyos"]=110;
 Jp_bedel["Şile - Ağva"]=100;
 Jp_bedel["Beykoz - Kavacık, And.Hisarı"]=80;
 Jp_bedel["Sarıyer- Tarabya, Yeniköy"]=50;
 Jp_bedel["Gebze"]=110;
 Jp_bedel["Izmit"]=120;
 Jp_bedel["Bursa - Uludağ"]=320;
 Jp_bedel["Bolu - Abant"]=320;
 Jp_bedel["Yalova"]=220;
 Jp_bedel["Çanakkale - Gelibolu"]=350;
 Jp_bedel["Edirne - Tekirdağ"]=350;
 
 var Kp_bedel= new Array();
 Kp_bedel["Atatürk Airport (IST)"]=25;
 Kp_bedel["Sabiha Gökçen Airport (SAW)"]=55;
 Kp_bedel["Ports - Karaköy, Salıpazarı, Kabataş"]=30;
 Kp_bedel["Old City - Sultanahmet - Sirkeci"]=25;
 Kp_bedel["Taksim - Beyoğlu, Pera, Nişantaşı"]=25;
 Kp_bedel["Beşiktaş - Ortaköy"]=30;
 Kp_bedel["Yenikapı - Aksaray, Laleli"]=25;
 Kp_bedel["Bakırköy - Yenibosna, Zeytinburnu, Sefaköy"]=25;
 Kp_bedel["Otogar - Bayrampaşa, Bağcılar, Esenler"]=25;
 Kp_bedel["Şişli - Maslak, Levent, Etiler"]=30;
 Kp_bedel["Topkapı - Fındıkzade, Vatan Cad"]=0;
 Kp_bedel["Eyüp - Gaziosmanpaşa, Haliç"]=30;
 Kp_bedel["Mecidiyeköy - Bomonti, Çağlayan"]=30;
 Kp_bedel["Avcılar - Beylikdüzü, Esenyurt"]=45;
 Kp_bedel["Pendik - Tuzla, Kurtköy"]=60;
 Kp_bedel["Kadıköy - Ataşehir, Bostancı"]=55;
 Kp_bedel["Silivri - Selimpaşa, Kumburgaz"]=80;
 Kp_bedel["Üsküdar - Harem, Haydarpaşa"]=55;
 Kp_bedel["Kartal - Maltepe, Ümraniye"]=60;
 Kp_bedel["Kilyos"]=80;
 Kp_bedel["Şile - Ağva"]=85;
 Kp_bedel["Beykoz - Kavacık, And.Hisarı"]=80;
 Kp_bedel["Sarıyer- Tarabya, Yeniköy"]=40;
 Kp_bedel["Gebze"]=80;
 Kp_bedel["Izmit"]=115;
 Kp_bedel["Bursa - Uludağ"]=320;
 Kp_bedel["Bolu - Abant"]=320;
 Kp_bedel["Yalova"]=220;
 Kp_bedel["Çanakkale - Gelibolu"]=350;
 Kp_bedel["Edirne - Tekirdağ"]=350;
 
 var Mp_bedel= new Array();
 Mp_bedel["Atatürk Airport (IST)"]=40;
 Mp_bedel["Sabiha Gökçen Airport (SAW)"]=60;
 Mp_bedel["Ports - Karaköy, Salıpazarı, Kabataş"]=40;
 Mp_bedel["Old City - Sultanahmet - Sirkeci"]=35;
 Mp_bedel["Taksim - Beyoğlu, Pera, Nişantaşı"]=35;
 Mp_bedel["Beşiktaş - Ortaköy"]=0;
 Mp_bedel["Yenikapı - Aksaray, Laleli"]=15;
 Mp_bedel["Bakırköy - Yenibosna, Zeytinburnu, Sefaköy"]=0;
 Mp_bedel["Otogar - Bayrampaşa, Bağcılar, Esenler"]=30;
 Mp_bedel["Şişli - Maslak, Levent, Etiler"]=0;
 Mp_bedel["Topkapı - Fındıkzade, Vatan Cad"]=30;
 Mp_bedel["Eyüp - Gaziosmanpaşa, Haliç"]=40;
 Mp_bedel["Mecidiyeköy - Bomonti, Çağlayan"]=0;
 Mp_bedel["Avcılar - Beylikdüzü, Esenyurt"]=50;
 Mp_bedel["Pendik - Tuzla, Kurtköy"]=60;
 Mp_bedel["Kadıköy - Ataşehir, Bostancı"]=55;
 Mp_bedel["Silivri - Selimpaşa, Kumburgaz"]=85;
 Mp_bedel["Üsküdar - Harem, Haydarpaşa"]=55;
 Mp_bedel["Kartal - Maltepe, Ümraniye"]=55;
 Mp_bedel["Kilyos"]=85;
 Mp_bedel["Şile - Ağva"]=90;
 Mp_bedel["Beykoz - Kavacık, And.Hisarı"]=60;
 Mp_bedel["Sarıyer- Tarabya, Yeniköy"]=45;
 Mp_bedel["Gebze"]=80;
 Mp_bedel["Izmit"]=115;
 Mp_bedel["Bursa - Uludağ"]=320;
 Mp_bedel["Bolu - Abant"]=320;
 Mp_bedel["Yalova"]=220;
 Mp_bedel["Çanakkale - Gelibolu"]=350;
 Mp_bedel["Edirne - Tekirdağ"]=350;
 
 var Pp_bedel= new Array();
 Pp_bedel["Atatürk Airport (IST)"]=55;
 Pp_bedel["Sabiha Gökçen Airport (SAW)"]=55;
 Pp_bedel["Ports - Karaköy, Salıpazarı, Kabataş"]=50;
 Pp_bedel["Old City - Sultanahmet - Sirkeci"]=50;
 Pp_bedel["Taksim - Beyoğlu, Pera, Nişantaşı"]=50;
 Pp_bedel["Beşiktaş - Ortaköy"]=50;
 Pp_bedel["Yenikapı - Aksaray, Laleli"]=55;
 Pp_bedel["Bakırköy - Yenibosna, Zeytinburnu, Sefaköy"]=65;
 Pp_bedel["Otogar - Bayrampaşa, Bağcılar, Esenler"]=60;
 Pp_bedel["Şişli - Maslak, Levent, Etiler"]=40;
 Pp_bedel["Topkapı - Fındıkzade, Vatan Cad"]=55;
 Pp_bedel["Eyüp - Gaziosmanpaşa, Haliç"]=0;
 Pp_bedel["Mecidiyeköy - Bomonti, Çağlayan"]=55;
 Pp_bedel["Avcılar - Beylikdüzü, Esenyurt"]=80;
 Pp_bedel["Pendik - Tuzla, Kurtköy"]=55;
 Pp_bedel["Kadıköy - Ataşehir, Bostancı"]=0;
 Pp_bedel["Silivri - Selimpaşa, Kumburgaz"]=120;
 Pp_bedel["Üsküdar - Harem, Haydarpaşa"]=50;
 Pp_bedel["Kartal - Maltepe, Ümraniye"]=50;
 Pp_bedel["Kilyos"]=95;
 Pp_bedel["Şile - Ağva"]=85;
 Pp_bedel["Beykoz - Kavacık, And.Hisarı"]=0;
 Pp_bedel["Sarıyer- Tarabya, Yeniköy"]=65;
 Pp_bedel["Gebze"]=75;
 Pp_bedel["Izmit"]=110;
 Pp_bedel["Bursa - Uludağ"]=320;
 Pp_bedel["Bolu - Abant"]=320;
 Pp_bedel["Yalova"]=220;
 Pp_bedel["Çanakkale - Gelibolu"]=350;
 Pp_bedel["Edirne - Tekirdağ"]=350;
 
 var Rp_bedel= new Array();
 Rp_bedel["Atatürk Airport (IST)"]=50;
 Rp_bedel["Sabiha Gökçen Airport (SAW)"]=50;
 Rp_bedel["Ports - Karaköy, Salıpazarı, Kabataş"]=50;
 Rp_bedel["Old City - Sultanahmet - Sirkeci"]=50;
 Rp_bedel["Taksim - Beyoğlu, Pera, Nişantaşı"]=50;
 Rp_bedel["Beşiktaş - Ortaköy"]=50;
 Rp_bedel["Yenikapı - Aksaray, Laleli"]=50;
 Rp_bedel["Bakırköy - Yenibosna, Zeytinburnu, Sefaköy"]=65;
 Rp_bedel["Otogar - Bayrampaşa, Bağcılar, Esenler"]=60;
 Rp_bedel["Şişli - Maslak, Levent, Etiler"]=45;
 Rp_bedel["Topkapı - Fındıkzade, Vatan Cad"]=55;
 Rp_bedel["Eyüp - Gaziosmanpaşa, Haliç"]=75;
 Rp_bedel["Mecidiyeköy - Bomonti, Çağlayan"]=60;
 Rp_bedel["Avcılar - Beylikdüzü, Esenyurt"]=80;
 Rp_bedel["Pendik - Tuzla, Kurtköy"]=55;
 Rp_bedel["Kadıköy - Ataşehir, Bostancı"]=50;
 Rp_bedel["Silivri - Selimpaşa, Kumburgaz"]=120;
 Rp_bedel["Üsküdar - Harem, Haydarpaşa"]=55;
 Rp_bedel["Kartal - Maltepe, Ümraniye"]=50;
 Rp_bedel["Kilyos"]=95;
 Rp_bedel["Şile - Ağva"]=85;
 Rp_bedel["Beykoz - Kavacık, And.Hisarı"]=0;
 Rp_bedel["Sarıyer- Tarabya, Yeniköy"]=65;
 Rp_bedel["Gebze"]=75;
 Rp_bedel["Izmit"]=110;
 Rp_bedel["Bursa - Uludağ"]=320;
 Rp_bedel["Bolu - Abant"]=320;
 Rp_bedel["Yalova"]=220;
 Rp_bedel["Çanakkale - Gelibolu"]=350;
 Rp_bedel["Edirne - Tekirdağ"]=350;
 
 var kisi_bedel= new Array();
 kisi_bedel["Standart 4 Pax"]=0;
 kisi_bedel["Minibus 8 pax"]=15;
 kisi_bedel["Midibus 13 pax"]=25;
	 
function getCakeSizePrice()
{  
    var cakeSizePrice=0;
    var theForm = document.forms["slider-form"];
    var snereden = theForm.elements["nereden_y"];
    var snereye = theForm.elements["nereye_y"];
    var sorgu = document.getElementById("nereden_y");
    
    if(sorgu[sorgu.selectedIndex].value=="Atatürk Airport (IST)")
        {
            cakeSizePrice = nereden_bedel[snereden.value] + Ap_bedel[snereye.value];
        }
    if(sorgu[sorgu.selectedIndex].value=="Sabiha Gökçen Airport (SAW)")
        {
            cakeSizePrice = nereden_bedel[snereden.value] + Bp_bedel[snereye.value];
        }
    if(sorgu[sorgu.selectedIndex].value=="Ports - Karaköy, Salıpazarı, Kabataş")
        {
            cakeSizePrice = nereden_bedel[snereden.value] + Cp_bedel[snereye.value];
        }
    if(sorgu[sorgu.selectedIndex].value=="Old City - Sultanahmet - Sirkeci")
        {
            cakeSizePrice = nereden_bedel[snereden.value] + Dp_bedel[snereye.value];
        }
    if(sorgu[sorgu.selectedIndex].value=="Taksim - Beyoğlu, Pera, Nişantaşı")
        {
            cakeSizePrice = nereden_bedel[snereden.value] + Ep_bedel[snereye.value];
        }
    if(sorgu[sorgu.selectedIndex].value=="Beşiktaş - Ortaköy")
        {
            cakeSizePrice = nereden_bedel[snereden.value] + Fp_bedel[snereye.value];
        }
    if(sorgu[sorgu.selectedIndex].value=="Yenikapı - Aksaray, Laleli")
        {
            cakeSizePrice = nereden_bedel[snereden.value] + Gp_bedel[snereye.value];
        }
    if(sorgu[sorgu.selectedIndex].value=="Bakırköy - Yenibosna, Zeytinburnu, Sefaköy")
        {
            cakeSizePrice = nereden_bedel[snereden.value] + Hp_bedel[snereye.value];
        }
    if(sorgu[sorgu.selectedIndex].value=="Otogar - Bayrampaşa, Bağcılar, Esenler")
        {
            cakeSizePrice = nereden_bedel[snereden.value] + Ip_bedel[snereye.value];
        }
    if(sorgu[sorgu.selectedIndex].value=="Şişli - Maslak, Levent, Etiler")
        {
            cakeSizePrice = nereden_bedel[snereden.value] + Jp_bedel[snereye.value];
        }
    if(sorgu[sorgu.selectedIndex].value=="Topkapı - Fındıkzade, Vatan Cad")
        {
            cakeSizePrice = nereden_bedel[snereden.value] + Kp_bedel[snereye.value];
        }
    if(sorgu[sorgu.selectedIndex].value=="Eyüp - Gaziosmanpaşa, Haliç")
        {
            cakeSizePrice = nereden_bedel[snereden.value] + Lp_bedel[snereye.value];
        }
    if(sorgu[sorgu.selectedIndex].value=="Mecidiyeköy - Bomonti, Çağlayan")
        {
            cakeSizePrice = nereden_bedel[snereden.value] + Mp_bedel[snereye.value];
        }
    if(sorgu[sorgu.selectedIndex].value=="Kadıköy - Ataşehir, Bostancı")
        {
            cakeSizePrice = nereden_bedel[snereden.value] + Pp_bedel[snereye.value];
        }
    if(sorgu[sorgu.selectedIndex].value=="Üsküdar - Harem, Haydarpaşa")
        {
            cakeSizePrice = nereden_bedel[snereden.value] + Rp_bedel[snereye.value];
        }
    return cakeSizePrice;
}
function getkisi_yPrice()
{
    var cakekisi_yPrice=0;
    var theForm = document.forms["slider-form"];
    var selectedkisi_y = theForm.elements["kisi_y"];
    cakekisi_yPrice = kisi_bedel[selectedkisi_y.value];
    return cakekisi_yPrice;
}
        
function calculateTotal()
{
    var cakePrice = getCakeSizePrice() + getkisi_yPrice();
    if(isNaN(cakePrice)) {
              	cakePrice = '0';
               	}  
    
    var divobj = document.getElementById('totalPrice');
    divobj.style.display='block';
    
    divobj.innerHTML = Math.abs(cakePrice)+"€";
}
function hideTotal()
{
    var divobj = document.getElementById('totalPrice');
    divobj.style.display='block';
}

<form id="slider-form" class="main-form" action="http://istanbulprivateservice.com/bookit.php" onsubmit="return validateForm()" method="POST">
		<div class="main_form_navigation">
			<div id="book_car" class="title-form current">BOOKING ONLINE</div>
		</div>
		<div id="book_car_content" class="content-form ">
			
<div class="form-block car-type">
<div class="car-type-select">
<h4>Pick Up Location</h4>
<select class="select" id="nereden_y" name="nereden_y" onchange="calculateTotal()" >
<option value="">Select</option>
<option value="Atatürk Airport (IST)" selected="selected">Atatürk Airport (IST)</option>
<option value="Sabiha Gökçen Airport (SAW)">Sabiha Gökçen Airport (SAW)</option>
<option value="Ports - Karaköy, Salıpazarı, Kabataş">Ports - Karaköy, Salıpazarı, Kabataş</option>
<option value="Old City - Sultanahmet - Sirkeci">Old City - Sultanahmet - Sirkeci</option>
<option value="Taksim - Beyoğlu, Pera, Nişantaşı">Taksim - Beyoğlu, Pera, Nişantaşı</option>
<option value="Beşiktaş - Ortaköy">Beşiktaş - Ortaköy</option>
<option value="Yenikapı - Aksaray, Laleli">Yenikapı - Aksaray, Laleli</option>
<option value="Bakırköy - Yenibosna, Zeytinburnu, Sefaköy">Bakırköy - Yenibosna, Zeytinburnu, Sefaköy</option>
<option value="Otogar - Bayrampaşa, Bağcılar, Esenler">Otogar - Bayrampaşa, Bağcılar, Esenler</option>
<option value="Şişli - Maslak, Levent, Etiler">Şişli - Maslak, Levent, Etiler</option>
<option value="Topkapı - Fındıkzade, Vatan Cad">Topkapı - Fındıkzade, Vatan Cad</option>
<option value="Eyüp - Gaziosmanpaşa, Haliç">Eyüp - Gaziosmanpaşa, Haliç</option>
<option value="Mecidiyeköy - Bomonti, Çağlayan">Mecidiyeköy - Bomonti, Çağlayan</option>
<option value="Kadıköy - Ataşehir, Bostancı">Kadıköy - Ataşehir, Bostancı</option>
<option value="Üsküdar - Harem, Haydarpaşa">Üsküdar - Harem, Haydarpaşa</option>
</select>
</div>
			
<div class="form-block car-type">
<div class="car-type-select">
<h4>Drop Off Location</h4>
<select class="select" id="nereye_y" name="nereye_y" onchange="calculateTotal()" sb="88701315" >
<option value="" selected="selected">Select</option>
<option value="Atatürk Airport (IST)" selected="selected">Atatürk Airport (IST)</option>
<option value="Sabiha Gökçen Airport (SAW)" selected="selected">Sabiha Gökçen Airport (SAW)</option>
<option value="Ports - Karaköy, Salıpazarı, Kabataş">Ports - Karaköy, Salıpazarı, Kabataş</option>
<option value="Old City - Sultanahmet - Sirkeci">Old City - Sultanahmet - Sirkeci</option>
<option value="Taksim - Beyoğlu, Pera, Nişantaşı">Taksim - Beyoğlu, Pera, Nişantaşı</option>
<option value="Beşiktaş - Ortaköy">Beşiktaş - Ortaköy</option>
<option value="Yenikapı - Aksaray, Laleli">Yenikapı - Aksaray, Laleli</option>
<option value="Bakırköy - Yenibosna, Zeytinburnu, Sefaköy" selected="selected">Bakırköy - Yenibosna, Zeytinburnu, Sefaköy</option>
<option value="Otogar - Bayrampaşa, Bağcılar, Esenler">Otogar - Bayrampaşa, Bağcılar, Esenler</option>
<option value="Şişli - Maslak, Levent, Etiler">Şişli - Maslak, Levent, Etiler</option>
<option value="Topkapı - Fındıkzade, Vatan Cad" selected="selected">Topkapı - Fındıkzade, Vatan Cad</option>
<option value="Eyüp - Gaziosmanpaşa, Haliç">Eyüp - Gaziosmanpaşa, Haliç</option>
<option value="Mecidiyeköy - Bomonti, Çağlayan">Mecidiyeköy - Bomonti, Çağlayan</option>
<option value="Avcılar - Beylikdüzü, Esenyurt">Avcılar - Beylikdüzü, Esenyurt</option>
<option value="Pendik - Tuzla, Kurtköy">Pendik - Tuzla, Kurtköy</option>
<option value="Kadıköy - Ataşehir, Bostancı">Kadıköy - Ataşehir, Bostancı</option>
<option value="Silivri - Selimpaşa, Kumburgaz">Silivri - Selimpaşa, Kumburgaz</option>
<option value="Üsküdar - Harem, Haydarpaşa" selected="selected">Üsküdar - Harem, Haydarpaşa</option>
<option value="Kartal - Maltepe, Ümraniye">Kartal - Maltepe, Ümraniye</option>
<option value="Kilyos">Kilyos</option>
<option value="Şile - Ağva">Şile - Ağva</option>
<option value="Beykoz - Kavacık, And.Hisarı">Beykoz - Kavacık, And.Hisarı</option>
<option value="Sarıyer- Tarabya, Yeniköy">Sarıyer- Tarabya, Yeniköy</option>
<option value="Gebze">Gebze</option>
<option value="Izmit">Izmit</option>
<option value="Bursa - Uludağ">Bursa - Uludağ</option>
<option value="Bolu - Abant">Bolu - Abant</option>
<option value="Yalova">Yalova</option>
<option value="Çanakkale - Gelibolu">Çanakkale - Gelibolu</option>
<option value="Edirne - Tekirdağ">Edirne - Tekirdağ</option>
</select>
</div>
	
<h4>Passenger</h4>
<div class="car-type-select">
	<select class="select" id="kisi_y" name="kisi_y" onchange="calculateTotal()"> 
		<option selected="selected" value="Standart 4 Pax">Standart 4 Pax</option>
		<option value="Minibus 8 pax" selected="selected">Minibus 8 pax</option>
		<option value="Midibus 13 pax" selected="selected">Midibus 13 pax</option>
	</select>
			
  	<h4>Price</h4>
<textarea class="price-text" id="totalPrice" name="totalPrice" readonly="" style="display: block;">65€</textarea>