function fillcity(){ 
 // this function is used to fill the city list on load


//##########################
addOption(document.drop_list.city, "toyota", "تويوتا","");
addOption(document.drop_list.city, "chevrolet", "شيفروليه","");
addOption(document.drop_list.city, "nissan", "نيسان","");
addOption(document.drop_list.city, "ford", "فورد","");
addOption(document.drop_list.city, "benz", "مرسيدس","");
addOption(document.drop_list.city, "gmc", "جي ام سي","");
addOption(document.drop_list.city, "bmw", "بي ام دبليو","");
addOption(document.drop_list.city, "lexus", "لكزس","");
addOption(document.drop_list.city, "jeep", "جيب","");
addOption(document.drop_list.city, "hyundai", "هونداي","");
addOption(document.drop_list.city, "honda", "هوندا","");
addOption(document.drop_list.city, "hummer", "همر","");
addOption(document.drop_list.city, "infinity", "انفنيتي","");
addOption(document.drop_list.city, "landrover", "لاند روفر","");
addOption(document.drop_list.city, "mazda", "مازدا","");
addOption(document.drop_list.city, "mercury", "ميركوري","");
addOption(document.drop_list.city, "volkswagen", "فولكس واجن","");
addOption(document.drop_list.city, "mitsubishi", "ميتسوبيشي","");
addOption(document.drop_list.city, "lincoln", "لنكولن","");
addOption(document.drop_list.city, "opel", "اوبل","");
addOption(document.drop_list.city, "isuzu", "ايسوزو","");
addOption(document.drop_list.city, "porsche", "بورش","");
addOption(document.drop_list.city, "kia", "كيا","");
addOption(document.drop_list.city, "maserati", "مازيراتي","");
addOption(document.drop_list.city, "austn-martin", "استون مارتن","");
addOption(document.drop_list.city, "cadillac", "كاديلاك","");
addOption(document.drop_list.city, "chrysler", "كرايزلر","");
addOption(document.drop_list.city, "citroen", "سيتروين","");
addOption(document.drop_list.city, "daewoo", "دايو","");
addOption(document.drop_list.city, "dodge", "دودج","");
addOption(document.drop_list.city, "ferrari", "فيراري","");
addOption(document.drop_list.city, "fiat", "فيات","");
addOption(document.drop_list.city, "jaguar", "جاكوار","");
addOption(document.drop_list.city, "lamborghini", "لامبورجيني","");
addOption(document.drop_list.city, "peugeot", "بيجو","");
addOption(document.drop_list.city, "subaru", "سوبارو","");
addOption(document.drop_list.city, "suzuki", "سوزوكي","");
addOption(document.drop_list.city, "volvo", "فولفو","");
addOption(document.drop_list.city, "skoda", "سكودا","");								
addOption(document.drop_list.city, "audi", "اودي","");
//#########################
}

function Selectsubcity(){
// ON selection of city this function will work

removeAllOptions(document.drop_list.subcity);
addOption(document.drop_list.subcity, "", "أختر نوع السيارة", "");

if(document.drop_list.city.value == 'toyota'){

//################ toyota


addOption(document.drop_list.subcity,"افالون","افالون");
addOption(document.drop_list.subcity,"اوريون","اوريون");
addOption(document.drop_list.subcity,"ايكو","ايكو");
addOption(document.drop_list.subcity,"اينوفا","اينوفا");
addOption(document.drop_list.subcity,"باص","باص");
addOption(document.drop_list.subcity,"برادو","برادو");
addOption(document.drop_list.subcity,"بريفيا","بريفيا");
addOption(document.drop_list.subcity,"راف فور","راف فور");
addOption(document.drop_list.subcity,"ساكويا","ساكويا");
addOption(document.drop_list.subcity,"سوبرا","سوبرا");
addOption(document.drop_list.subcity,"فورتونر","فورتونر");
addOption(document.drop_list.subcity,"كامري","كامري");
addOption(document.drop_list.subcity,"كرسيدا","كرسيدا");
addOption(document.drop_list.subcity,"كورولا","كورولا");
addOption(document.drop_list.subcity,"لاندكروزر","لاندكروزر");
addOption(document.drop_list.subcity,"يارس","يارس");
addOption(document.drop_list.subcity,"هايلاندر","هايلاندر");
addOption(document.drop_list.subcity,"هايلوكس","هايلوكس");
addOption(document.drop_list.subcity,"شاص","شاص");
addOption(document.drop_list.subcity,"ربع","ربع");
addOption(document.drop_list.subcity,"اف جي","اف جي");
addOption(document.drop_list.subcity,"toyota","نوع آخر");
//#########################################
}
else if(document.drop_list.city.value == 'chevrolet'){
addOption(document.drop_list.subcity,"ابلاندر","ابلاندر");
addOption(document.drop_list.subcity,"ابيكا","ابيكا");
addOption(document.drop_list.subcity,"استروفان","استروفان");
addOption(document.drop_list.subcity,"افلانش","افلانش");
addOption(document.drop_list.subcity,"اكسبرس فان","اكسبرس فان");
addOption(document.drop_list.subcity,"امبالا","امبالا");
addOption(document.drop_list.subcity,"اوبترا","اوبترا");
addOption(document.drop_list.subcity,"بليزر","بليزر");
addOption(document.drop_list.subcity,"بيل أير","بيل أير");
addOption(document.drop_list.subcity,"تاهو","تاهو");
addOption(document.drop_list.subcity,"تريل بليزر","تريل بليزر");
addOption(document.drop_list.subcity,"جي فان","جي فان");
addOption(document.drop_list.subcity,"سوبربان","سوبربان");
addOption(document.drop_list.subcity,"فان","فان");
addOption(document.drop_list.subcity,"فنشر","فنشر");
addOption(document.drop_list.subcity,"كابتيفا","كابتيفا");
addOption(document.drop_list.subcity,"كابريس","كابريس");
addOption(document.drop_list.subcity,"كافالير","كافالير");
addOption(document.drop_list.subcity,"كرفان","كرفان");
addOption(document.drop_list.subcity,"كمارو","كمارو");
addOption(document.drop_list.subcity,"كورفيت","كورفيت");
addOption(document.drop_list.subcity,"لاجونا","لاجونا");
addOption(document.drop_list.subcity,"لومينا","لومينا");
addOption(document.drop_list.subcity,"ماليبو","ماليبو");
addOption(document.drop_list.subcity,"مونتي كارلو","مونتي كارلو");
addOption(document.drop_list.subcity,"chevrolet","نوع آخر");
}
else if(document.drop_list.city.value == 'nissan'){
addOption(document.drop_list.subcity,"مكسيما","مكسيما");
addOption(document.drop_list.subcity,"مورانو","مورانو");
addOption(document.drop_list.subcity,"التيما","التيما");
addOption(document.drop_list.subcity,"جلوريا","جلوريا");
addOption(document.drop_list.subcity,"باثفندر","باثفندر");
addOption(document.drop_list.subcity,"بريميرا","بريميرا");
addOption(document.drop_list.subcity,"سفاري","سفاري");
addOption(document.drop_list.subcity,"سكاي لاين","سكاي لاين");
addOption(document.drop_list.subcity,"صني","صني");
addOption(document.drop_list.subcity,"سوبر سفاري","سوبر سفاري");
addOption(document.drop_list.subcity,"اكس تريل","اكس تريل");
addOption(document.drop_list.subcity,"تيدا","تيدا");
addOption(document.drop_list.subcity,"ارمادا","ارمادا");
addOption(document.drop_list.subcity,"فئة Z","فئة Z");
addOption(document.drop_list.subcity,"nissan","نوع آخر");
}
else if(document.drop_list.city.value == 'ford'){
addOption(document.drop_list.subcity,"كراون فكتوريا","كراون فكتوريا");
addOption(document.drop_list.subcity,"اسكيب","اسكيب");
addOption(document.drop_list.subcity,"اكس كورجن","اكس كورجن");
addOption(document.drop_list.subcity,"اكسبيدشن","اكسبيدشن");
addOption(document.drop_list.subcity,"اكسبلورر","اكسبلورر");
addOption(document.drop_list.subcity,"جالاكسي","جالاكسي");
addOption(document.drop_list.subcity,"جراند ماركيز","جراند ماركيز");
addOption(document.drop_list.subcity,"لنكون","لنكون");
addOption(document.drop_list.subcity,"مونديو","مونديو");
addOption(document.drop_list.subcity,"موستنج","موستنج");
addOption(document.drop_list.subcity,"بيك اب","بيك اب");
addOption(document.drop_list.subcity,"f150","f150");
addOption(document.drop_list.subcity,"رينجر","رينجر");
addOption(document.drop_list.subcity,"سبلاش","سبلاش");
addOption(document.drop_list.subcity,"توروس","توروس");
addOption(document.drop_list.subcity,"ثندربيرد","ثندربيرد");
addOption(document.drop_list.subcity,"فان","فان");
addOption(document.drop_list.subcity,"وندستار","وندستار");
addOption(document.drop_list.subcity,"كوجر","كوجر");
addOption(document.drop_list.subcity,"فوكس","فوكس");
addOption(document.drop_list.subcity,"ford","نوع آخر");

}else if(document.drop_list.city.value == 'benz'){
addOption(document.drop_list.subcity,"E","E");
addOption(document.drop_list.subcity,"SE","SE");
addOption(document.drop_list.subcity,"S","S");
addOption(document.drop_list.subcity,"SE","SE");
addOption(document.drop_list.subcity,"SL","SL");
addOption(document.drop_list.subcity,"SEL","SEL");
addOption(document.drop_list.subcity,"SEC","SEC");
addOption(document.drop_list.subcity,"C","C");
addOption(document.drop_list.subcity,"CL","CL");
addOption(document.drop_list.subcity,"CLK","CLK");
addOption(document.drop_list.subcity,"CLS","CLS");
addOption(document.drop_list.subcity,"ML","ML");
addOption(document.drop_list.subcity,"SLK","SLK");
addOption(document.drop_list.subcity,"AMG","AMG");
addOption(document.drop_list.subcity,"A","A");
addOption(document.drop_list.subcity,"benz","نوع آخر");
/////////////////////////////////////////////#################
}else if(document.drop_list.city.value == 'gmc'){
addOption(document.drop_list.subcity,"انفوي","انفوي");
addOption(document.drop_list.subcity,"جيمي","جيمي");
addOption(document.drop_list.subcity,"بيك أب","بيك أب");
addOption(document.drop_list.subcity,"z71","z71");
addOption(document.drop_list.subcity,"سفاري","سفاري");
addOption(document.drop_list.subcity,"سافانا","سافانا");
addOption(document.drop_list.subcity,"سوبربان","سوبربان");
addOption(document.drop_list.subcity,"فان","فان");
addOption(document.drop_list.subcity,"يوكن","يوكن");
addOption(document.drop_list.subcity,"GMC","نوع آخر");
}
else if(document.drop_list.city.value == 'bmw'){
addOption(document.drop_list.subcity,"الفئة الأولى","الفئة الأولى");
addOption(document.drop_list.subcity,"الفئة الثالثة","الفئة الثالثة");
addOption(document.drop_list.subcity,"الفئة الخامسة","الفئة الخامسة");
addOption(document.drop_list.subcity,"الفئة السادسة","الفئة السادسة");
addOption(document.drop_list.subcity,"الفئة السابعة","الفئة السابعة");
addOption(document.drop_list.subcity,"الفئة Z","الفئة Z");
addOption(document.drop_list.subcity,"الفئة M","الفئة M");
addOption(document.drop_list.subcity,"الفئة x","الفئة x");
addOption(document.drop_list.subcity,"BMW","نوع آخر");
}
//###################################lexus###############
else if(document.drop_list.city.value == 'lexus'){
addOption(document.drop_list.subcity,"ES","ES");
addOption(document.drop_list.subcity,"GS","GS");
addOption(document.drop_list.subcity,"IS","IS");
addOption(document.drop_list.subcity,"LS","LS");
addOption(document.drop_list.subcity,"LX","LX");
addOption(document.drop_list.subcity,"RX","RX");
addOption(document.drop_list.subcity,"SC","SC");
addOption(document.drop_list.subcity,"lexus","نوع آخر");
}
//##################################################
else if(document.drop_list.city.value == 'jeep'){
addOption(document.drop_list.subcity,"شيروكي","شيروكي");
addOption(document.drop_list.subcity,"جراند شيروكي","جراند شيروكي");
addOption(document.drop_list.subcity,"رانجلر","رانجلر");
addOption(document.drop_list.subcity,"jeep","نوع آخر");
}
//##################################################
else if(document.drop_list.city.value == 'hyundai'){
addOption(document.drop_list.subcity,"اكسنت","اكسنت");
addOption(document.drop_list.subcity,"سوناتا","سوناتا");
addOption(document.drop_list.subcity,"كوبيه","كوبيه");
addOption(document.drop_list.subcity,"النترا","النترا");
addOption(document.drop_list.subcity,"ازيرا","ازيرا");
addOption(document.drop_list.subcity,"جالوبر","جالوبر");
addOption(document.drop_list.subcity,"تيريكان","تيريكان");
addOption(document.drop_list.subcity,"تسكان","تسكان");
addOption(document.drop_list.subcity,"ماتريكس","ماتريكس");
addOption(document.drop_list.subcity,"جنسس","جنسس");
addOption(document.drop_list.subcity,"hyundai","نوع آخر");

}
//##################################################
else if(document.drop_list.city.value == 'honda'){
addOption(document.drop_list.subcity,"اكورد","اكورد");
addOption(document.drop_list.subcity,"سيفيك","سيفيك");
addOption(document.drop_list.subcity,"CRV","CRV");
addOption(document.drop_list.subcity,"ليجيند","ليجيند");
addOption(document.drop_list.subcity,"اوديسي","اوديسي");
addOption(document.drop_list.subcity,"انتيجرا","انتيجرا");
addOption(document.drop_list.subcity,"بريليود","بريليود");
addOption(document.drop_list.subcity,"honda","نوع آخر");
}
//##################################################
else if(document.drop_list.city.value == 'hummer'){
addOption(document.drop_list.subcity,"H1","H1");
addOption(document.drop_list.subcity,"H2","H2");
addOption(document.drop_list.subcity,"H3","H3");
addOption(document.drop_list.subcity,"hummer","نوع آخر");
}
//##################################################
else if(document.drop_list.city.value == 'infinity'){
addOption(document.drop_list.subcity,"FX","FX");
addOption(document.drop_list.subcity,"G","G");
addOption(document.drop_list.subcity,"Q","Q");
addOption(document.drop_list.subcity,"QX","QX");
addOption(document.drop_list.subcity,"infinity","نوع آخر");
}//##################################################
else if(document.drop_list.city.value == 'landrover'){

addOption(document.drop_list.subcity,"ديسكفري","ديسكفري");
addOption(document.drop_list.subcity,"رنج روفر","رنج روفر");
addOption(document.drop_list.subcity,"فري لاندر","فري لاندر");
addOption(document.drop_list.subcity,"ديفندر","ديفندر");
addOption(document.drop_list.subcity,"landrover","نوع آخر");

}//##################################################
else if(document.drop_list.city.value == 'mazda'){
addOption(document.drop_list.subcity,"323","323");
addOption(document.drop_list.subcity,"626","626");
addOption(document.drop_list.subcity,"MPV","MPV");
addOption(document.drop_list.subcity,"مازدا 3","مازدا 3");
addOption(document.drop_list.subcity,"مازدا 6","مازدا 6");
addOption(document.drop_list.subcity,"RX8","RX8");
addOption(document.drop_list.subcity,"CX9","CX9");
addOption(document.drop_list.subcity,"mazda","نوع آخر");

}//##################################################
else if(document.drop_list.city.value == 'mercury'){
addOption(document.drop_list.subcity,"مونتنير","مونتنير");
addOption(document.drop_list.subcity,"mercury","نوع آخر");

}//##################################################
else if(document.drop_list.city.value == 'volkswagen'){
addOption(document.drop_list.subcity,"بيتل","بيتل");
addOption(document.drop_list.subcity,"جولف","جولف");
addOption(document.drop_list.subcity,"باسات","باسات");
addOption(document.drop_list.subcity,"بولو","بولو");
addOption(document.drop_list.subcity,"طوارق","طوارق");
addOption(document.drop_list.subcity,"volkswagen","نوع آخر");

}//##################################################
else if(document.drop_list.city.value == 'mitsubishi'){
addOption(document.drop_list.subcity,"كولت","كولت");
addOption(document.drop_list.subcity,"جالنت","جالنت");
addOption(document.drop_list.subcity,"لانسر","لانسر");
addOption(document.drop_list.subcity,"ماجنا","ماجنا");
addOption(document.drop_list.subcity,"ناتيفا","ناتيفا");
addOption(document.drop_list.subcity,"باجيرو","باجيرو");
addOption(document.drop_list.subcity,"L200","L200");
addOption(document.drop_list.subcity,"سقما","سقما");
addOption(document.drop_list.subcity,"mitsubishi","نوع آخر");
}//##################################################
else if(document.drop_list.city.value == 'lincoln'){
addOption(document.drop_list.subcity,"نافيجتور","نافيجتور");
addOption(document.drop_list.subcity,"ال اس","ال اس");
addOption(document.drop_list.subcity,"lincoln","نوع آخر");
}//##################################################
else if(document.drop_list.city.value == 'opel'){
addOption(document.drop_list.subcity,"استرا","استرا");
addOption(document.drop_list.subcity,"ريكورد","ريكورد");
addOption(document.drop_list.subcity,"opel","opel");
}//##################################################
else if(document.drop_list.city.value == 'isuzu'){
addOption(document.drop_list.subcity,"اسندر","اسندر");
addOption(document.drop_list.subcity,"isuzu","نوع آخر");
}//##################################################
else if(document.drop_list.city.value == 'porsche'){
addOption(document.drop_list.subcity,"911","911");
addOption(document.drop_list.subcity,"كايين","كايين");
addOption(document.drop_list.subcity,"بوكستر","بوكستر");
addOption(document.drop_list.subcity,"كاريرا","كاريرا");
addOption(document.drop_list.subcity,"كايمن","كايمن");
addOption(document.drop_list.subcity,"توربو","توربو");
addOption(document.drop_list.subcity,"GT","GT");
addOption(document.drop_list.subcity,"porsche","نوع آخر");
}//##################################################
else if(document.drop_list.city.value == 'kia'){
addOption(document.drop_list.subcity,"كانز","كانز");
addOption(document.drop_list.subcity,"كارنيفال","كارنيفال");
addOption(document.drop_list.subcity,"اوبتيما","اوبتيما");
addOption(document.drop_list.subcity,"سبورتاج","سبورتاج");
addOption(document.drop_list.subcity,"سيفيا","سيفيا");
addOption(document.drop_list.subcity,"kia","نوع آخر");

}//##################################################
else if(document.drop_list.city.value == 'maserati'){
addOption(document.drop_list.subcity,"3200GT","3200GT");
addOption(document.drop_list.subcity,"شاماي","شاماي");
addOption(document.drop_list.subcity,"سبايدر","سبايدر");
addOption(document.drop_list.subcity,"maserati","maserati");
}//##################################################
else if(document.drop_list.city.value == 'austn-martin'){
addOption(document.drop_list.subcity,"دي بي 7","دي بي 7");
addOption(document.drop_list.subcity,"austn-martin","نوع آخر");
}//##################################################
else if(document.drop_list.city.value == 'cadillac'){
addOption(document.drop_list.subcity,"كونكورس","كونكورس");
addOption(document.drop_list.subcity,"ديفيل","ديفيل");
addOption(document.drop_list.subcity,"ديفل دي تي اس","الدورادو");
addOption(document.drop_list.subcity,"اسكاليدا","اسكاليدا");
addOption(document.drop_list.subcity,"فليتوود","فليتوود");
addOption(document.drop_list.subcity,"STS","STS");
addOption(document.drop_list.subcity,"cadillac","نوع آخر");
}//##################################################
else if(document.drop_list.city.value == 'chrysler'){
addOption(document.drop_list.subcity,"كونكود","كونكود");
addOption(document.drop_list.subcity,"امبيريال","امبيريال");
addOption(document.drop_list.subcity,"جراند فوياجر","جراند فوياجر");
addOption(document.drop_list.subcity,"M300","M300");
addOption(document.drop_list.subcity,"بي تي كروزر","بي تي كروزر");
addOption(document.drop_list.subcity,"بلايموث","بلايموث");
addOption(document.drop_list.subcity,"كروس فاير","كروس فاير");
addOption(document.drop_list.subcity,"chrysler","نوع آخر");
}
//##################################################
else if(document.drop_list.city.value == 'citroen'){
addOption(document.drop_list.subcity,"ريجنسي","ريجنسي");
addOption(document.drop_list.subcity,"C2","C2");
addOption(document.drop_list.subcity,"C3","C3");
addOption(document.drop_list.subcity,"C1","C1");
addOption(document.drop_list.subcity,"C4","C4");
addOption(document.drop_list.subcity,"C5","C5");
addOption(document.drop_list.subcity,"C6","C6");
addOption(document.drop_list.subcity,"C6","C6");
addOption(document.drop_list.subcity,"اكسارا","اكسارا");
addOption(document.drop_list.subcity,"citroen","نوع آخر");
}//##################################################
else if(document.drop_list.city.value == 'daewoo'){
addOption(document.drop_list.subcity,"لانوس","لانوس");
addOption(document.drop_list.subcity,"نوبيرا","نوبيرا");
addOption(document.drop_list.subcity,"ليجانزا","ليجانزا");
addOption(document.drop_list.subcity,"ماتز","ماتز");
addOption(document.drop_list.subcity,"daewoo","نوع آخر");
}//##################################################
else if(document.drop_list.city.value == 'dodge'){
addOption(document.drop_list.subcity,"كارافان","كارافان");
addOption(document.drop_list.subcity,"جالينجر","جالينجر");
addOption(document.drop_list.subcity,"جارجر ماجنم","جارجر ماجنم");
addOption(document.drop_list.subcity,"دورانجو","دورانجو");
addOption(document.drop_list.subcity,"انتربيد","انتربيد");
addOption(document.drop_list.subcity,"بيك أب","بيك أب");
addOption(document.drop_list.subcity,"رام","رام");
addOption(document.drop_list.subcity,"فيبر","فيبر");
addOption(document.drop_list.subcity,"فوياجر","فوياجر");
addOption(document.drop_list.subcity,"كاليبير","كاليبير");
addOption(document.drop_list.subcity,"كاليبير","كاليبير");
addOption(document.drop_list.subcity,"dodge","نوع آخر");
}//##################################################
else if(document.drop_list.city.value == 'ferrari'){
addOption(document.drop_list.subcity,"355","355");
addOption(document.drop_list.subcity,"575 مورانيلو","575 مورانيلو");
addOption(document.drop_list.subcity,"360 مودينا","360 مودينا");
addOption(document.drop_list.subcity,"ferrari","نوع آخر");

}
else if(document.drop_list.city.value == 'fiat'){
addOption(document.drop_list.subcity,"كوبيه","");
addOption(document.drop_list.subcity,"fiat","fiat");
}
else if(document.drop_list.city.value == 'jaguar'){
addOption(document.drop_list.subcity,"XJ","XJ");
addOption(document.drop_list.subcity,"ديملر","ديملر");
addOption(document.drop_list.subcity,"سوفيرجن","سوفيرجن");
addOption(document.drop_list.subcity,"S type","S type");
addOption(document.drop_list.subcity,"X type","X type");
addOption(document.drop_list.subcity,"Jaguar","نوع آخر");
}else if(document.drop_list.city.value == 'lamborghini'){
addOption(document.drop_list.subcity,"ديابلو","ديابلو");
addOption(document.drop_list.subcity,"جالاردو","جالاردو");
addOption(document.drop_list.subcity,"lamborghini","lamborghini");
}else if(document.drop_list.city.value == 'peugeot'){
addOption(document.drop_list.subcity,"206","206");
addOption(document.drop_list.subcity,"307","307");
addOption(document.drop_list.subcity,"406","406");
addOption(document.drop_list.subcity,"407","407");
addOption(document.drop_list.subcity,"607","607");
addOption(document.drop_list.subcity,"بارتنر","بارتنر");
addOption(document.drop_list.subcity,"404","404");
addOption(document.drop_list.subcity,"peugeot","نوع آخر");
}else if(document.drop_list.city.value == 'subaru'){
addOption(document.drop_list.subcity,"امبريزا","امبريزا");
addOption(document.drop_list.subcity,"ليجاسي","ليجاسي");
addOption(document.drop_list.subcity,"subaru","نوع آخر");
}
else if(document.drop_list.city.value == 'volvo'){
addOption(document.drop_list.subcity,"850","850");
addOption(document.drop_list.subcity,"960","960");
addOption(document.drop_list.subcity,"S 40","S 40");
addOption(document.drop_list.subcity,"S 60R","S 60R");
addOption(document.drop_list.subcity,"S 70","S 70");
addOption(document.drop_list.subcity,"S 80","S 80");
addOption(document.drop_list.subcity,"V 70XC","V 70XC");
addOption(document.drop_list.subcity,"C 70","C 70");
addOption(document.drop_list.subcity,"volvo","نوع آخر");
}
else if(document.drop_list.city.value == 'skoda'){
addOption(document.drop_list.subcity,"سوبر بي","سوبر بي");
addOption(document.drop_list.subcity,"فابيا","فابيا");
addOption(document.drop_list.subcity,"skoda","نوع آخر");
}else if(document.drop_list.city.value == 'audi'){
addOption(document.drop_list.subcity,"A4","A4");
addOption(document.drop_list.subcity,"A3","A3");
addOption(document.drop_list.subcity,"A6","A6");
addOption(document.drop_list.subcity,"A8","A8");
addOption(document.drop_list.subcity,"S8","S8");
addOption(document.drop_list.subcity,"TT","TT");
addOption(document.drop_list.subcity,"audi","نوع آخر");
}



else if(document.drop_list.city.value == 'suzuki'){
addOption(document.drop_list.subcity,"فيتارا","فيتارا");
addOption(document.drop_list.subcity,"ساموراي","ساموراي");
addOption(document.drop_list.subcity,"سويفت","سويفت");
addOption(document.drop_list.subcity,"ليانا","ليانا");
addOption(document.drop_list.subcity,"suzuki","نوع آخر");
}

}
////////////////// 

function removeAllOptions(selectbox)
{
	var i;
	for(i=selectbox.options.length-1;i>=0;i--)
	{
		//selectbox.options.remove(i);
		selectbox.remove(i);
	}
}


function addOption(selectbox, value, text )
{
	var optn = document.createElement("option");
	optn.text = text;
	optn.value = value;

	selectbox.options.add(optn);
}