function fillCities(){ 
 // this function is used to fill the category list on first load

addOption(document.getElementById('city'), '1', '台北縣');addOption(document.getElementById('city'), '2', '台北市');addOption(document.getElementById('city'), '3', '基隆市');addOption(document.getElementById('city'), '4', '桃園縣');addOption(document.getElementById('city'), '5', '新竹市');addOption(document.getElementById('city'), '6', '新竹縣');addOption(document.getElementById('city'), '7', '苗栗縣');addOption(document.getElementById('city'), '8', '台中市');addOption(document.getElementById('city'), '9', '台中縣');addOption(document.getElementById('city'), '10', '彰化縣');addOption(document.getElementById('city'), '11', '南投縣');addOption(document.getElementById('city'), '12', '嘉義縣');addOption(document.getElementById('city'), '13', '雲林縣');addOption(document.getElementById('city'), '14', '台南市');addOption(document.getElementById('city'), '15', '台南縣');addOption(document.getElementById('city'), '16', '高雄市');addOption(document.getElementById('city'), '17', '高雄縣');addOption(document.getElementById('city'), '18', '屏東縣');addOption(document.getElementById('city'), '19', '宜蘭縣');addOption(document.getElementById('city'), '20', '花蓮縣');addOption(document.getElementById('city'), '21', '台東縣');addOption(document.getElementById('city'), '22', '澎湖縣');} // end of JS function


function fillFirstAreas(){ 
 // this function is used to fill the areas list on first load

removeAllOptions(document.getElementById('area'));
//addOption(document.getElementById('area'), "-1", "All Areas", "");
addOption(document.getElementById('area'), '-1', '全部區域');addOption(document.getElementById('area'), '14', '金山');addOption(document.getElementById('area'), '13', '萬里');addOption(document.getElementById('area'), '15', '板橋');addOption(document.getElementById('area'), '16', '汐止');addOption(document.getElementById('area'), '17', '深坑');addOption(document.getElementById('area'), '18', '石碇');addOption(document.getElementById('area'), '19', '瑞芳');addOption(document.getElementById('area'), '20', '平溪');addOption(document.getElementById('area'), '21', '雙溪');addOption(document.getElementById('area'), '22', '貢寮');addOption(document.getElementById('area'), '23', '新店');addOption(document.getElementById('area'), '24', '坪林');addOption(document.getElementById('area'), '25', '烏來');addOption(document.getElementById('area'), '26', '永和');addOption(document.getElementById('area'), '27', '中和');addOption(document.getElementById('area'), '28', '土城');addOption(document.getElementById('area'), '29', '三峽');addOption(document.getElementById('area'), '30', '樹林');addOption(document.getElementById('area'), '31', '鶯歌');addOption(document.getElementById('area'), '32', '三重');addOption(document.getElementById('area'), '33', '新莊');addOption(document.getElementById('area'), '34', '泰山');addOption(document.getElementById('area'), '35', '林口');addOption(document.getElementById('area'), '36', '蘆洲');addOption(document.getElementById('area'), '37', '五股');addOption(document.getElementById('area'), '38', '八里');addOption(document.getElementById('area'), '39', '淡水');addOption(document.getElementById('area'), '40', '三芝');addOption(document.getElementById('area'), '41', '石門');} // end of JS function


function fillBuildTypes(){ 
 // this function is used to fill the build types list on first load
 removeAllOptions(document.getElementById('build_type'));
addOption(document.getElementById('build_type'), '-1', '不拘');addOption(document.getElementById('build_type'), '1', '大廈');addOption(document.getElementById('build_type'), '2', '公寓');addOption(document.getElementById('build_type'), '3', '雅房');addOption(document.getElementById('build_type'), '4', '套房');addOption(document.getElementById('build_type'), '5', '別墅');addOption(document.getElementById('build_type'), '6', '車位');addOption(document.getElementById('build_type'), '7', '店面');addOption(document.getElementById('build_type'), '8', '辦公');addOption(document.getElementById('build_type'), '9', '工廠');addOption(document.getElementById('build_type'), '10', '土地');} // end of JS function

function fillSellPriceMinMax(selectbox,minm){ 
 // this function is used to fill the price_min list on first load

if (minm) {
	addOption(selectbox, 0, 0 );			//0
}

else {
addOption(selectbox, '-1', '以上');}
	var i;
	for(i=1;i<=2;i++)
	{
		addOption(selectbox, i*50, i*50 );			//50-100
	}
	for(i=0;i<=3;i++)
	{
		addOption(selectbox, i*100+200, i*100+200 );	//200-500
	}
	for(i=0;i<=9;i++)
	{
		addOption(selectbox, i*50+550, i*50+550 );		//550-1000
	}
	for(i=0;i<=4;i++)
	{
		addOption(selectbox, i*200+1200, i*200+1200 );
	}
	for(i=0;i<=5;i++)
	{
		addOption(selectbox, i*500+2500, i*500+2500 );
	}
} // end of JS function


function fillRentPriceMinMax(selectbox,minm){ 
 // this function is used to fill the price_min list on first load

if (minm) {
	addOption(selectbox, 0, 0 );			//0
}

else {
addOption(selectbox, '-1', '以上');}
	var i;
	for(i=1;i<=10;i++)
	{
		addOption(selectbox, i*10000, i*10000 );			//10000-100000
	}
	for(i=0;i<=9;i++)
	{
		addOption(selectbox, i*50000+150000, i*50000+150000 );		//150000-600000
	}
} // end of JS function

function fillFirstPingMinMax(selectbox,minm){ 
 // this function is used to fill the price_min list on first load

if (minm) {
	addOption(selectbox, 0, 0 );			//0
}

else {
addOption(selectbox, '-1', '以上');}
	var i;
	for(i=0;i<=18;i++)
	{
		addOption(selectbox, i*5+10, i*5+10 );			//5-100
	}
	for(i=0;i<=9;i++)
	{
		addOption(selectbox, i*10+110, i*10+110 );	//110-200
	}
	for(i=0;i<=4;i++)
	{
		addOption(selectbox, i*50+250, i*50+250 );		//250-500
	}
	
	addOption(selectbox, '1000', '1000' );		//1000

} // end of JS function


function InitializeControlsSell(){
	fillCities();
	fillFirstAreas();
	fillBuildTypes();
	fillSellPriceMinMax(document.getElementById('s_price_min'),true);
	fillSellPriceMinMax(document.getElementById('s_price_max'),false);
	fillFirstPingMinMax(document.getElementById('ping_min'),true);
	fillFirstPingMinMax(document.getElementById('ping_max'),false);
	fillResource();
}

function InitializeControlsRent(){
	fillCities();
	fillFirstAreas();
	fillBuildTypes();
	fillRentPriceMinMax(document.getElementById('r_price_min'),true);
	fillRentPriceMinMax(document.getElementById('r_price_max'),false);
	fillFirstPingMinMax(document.getElementById('ping_min'),true);
	fillFirstPingMinMax(document.getElementById('ping_max'),false);
	fillResource();
}

function fillResource(){ 
 // this function is used to fill the category list on first load
removeAllOptions(document.getElementById('resource'));

addOption(document.getElementById('resource'), '-1', '不拘');addOption(document.getElementById('resource'), '1', '房東自租');addOption(document.getElementById('resource'), '2', '仲介,成交不需付服務');addOption(document.getElementById('resource'), '3', '仲介,成交需付服務費');} // end of JS function

function SelectArea(){
// ON or after selection of Area this function will work

//removeAllOptions(document.drop_list.SubCat);
removeAllOptions(document.getElementById('area'));
//addOption(document.drop_list.SubCat, "", "SubCat", "");
//addOption(document.area, "-1", "All Areas", "");

addOption(document.getElementById('area'), '-1', '全部區域');
// Collect all element of subcategory for various city_id 

if(document.getElementById('city').value == '1'){addOption(document.getElementById('area'),'14', '金山');addOption(document.getElementById('area'),'13', '萬里');addOption(document.getElementById('area'),'15', '板橋');addOption(document.getElementById('area'),'16', '汐止');addOption(document.getElementById('area'),'17', '深坑');addOption(document.getElementById('area'),'18', '石碇');addOption(document.getElementById('area'),'19', '瑞芳');addOption(document.getElementById('area'),'20', '平溪');addOption(document.getElementById('area'),'21', '雙溪');addOption(document.getElementById('area'),'22', '貢寮');addOption(document.getElementById('area'),'23', '新店');addOption(document.getElementById('area'),'24', '坪林');addOption(document.getElementById('area'),'25', '烏來');addOption(document.getElementById('area'),'26', '永和');addOption(document.getElementById('area'),'27', '中和');addOption(document.getElementById('area'),'28', '土城');addOption(document.getElementById('area'),'29', '三峽');addOption(document.getElementById('area'),'30', '樹林');addOption(document.getElementById('area'),'31', '鶯歌');addOption(document.getElementById('area'),'32', '三重');addOption(document.getElementById('area'),'33', '新莊');addOption(document.getElementById('area'),'34', '泰山');addOption(document.getElementById('area'),'35', '林口');addOption(document.getElementById('area'),'36', '蘆洲');addOption(document.getElementById('area'),'37', '五股');addOption(document.getElementById('area'),'38', '八里');addOption(document.getElementById('area'),'39', '淡水');addOption(document.getElementById('area'),'40', '三芝');addOption(document.getElementById('area'),'41', '石門');}if(document.getElementById('city').value == '2'){addOption(document.getElementById('area'),'3', '中正區');addOption(document.getElementById('area'),'4', '大同區');addOption(document.getElementById('area'),'5', '中山區');addOption(document.getElementById('area'),'6', '松山區');addOption(document.getElementById('area'),'7', '大安區');addOption(document.getElementById('area'),'8', '萬華區');addOption(document.getElementById('area'),'9', '信義區');addOption(document.getElementById('area'),'10', '士林區');addOption(document.getElementById('area'),'11', '北投區');addOption(document.getElementById('area'),'12', '內湖區');}if(document.getElementById('city').value == '3'){addOption(document.getElementById('area'),'42', '仁愛區');addOption(document.getElementById('area'),'43', '信義區');addOption(document.getElementById('area'),'44', '中正區');addOption(document.getElementById('area'),'45', '中山區');addOption(document.getElementById('area'),'46', '安樂區');addOption(document.getElementById('area'),'47', '暖暖區');addOption(document.getElementById('area'),'48', '七堵區');}if(document.getElementById('city').value == '4'){addOption(document.getElementById('area'),'49', '中壢');addOption(document.getElementById('area'),'50', '平鎮');addOption(document.getElementById('area'),'51', '龍潭');addOption(document.getElementById('area'),'52', '楊梅');addOption(document.getElementById('area'),'53', '新屋');addOption(document.getElementById('area'),'54', '觀音');addOption(document.getElementById('area'),'55', '桃園');addOption(document.getElementById('area'),'56', '龜山');addOption(document.getElementById('area'),'57', '八德');addOption(document.getElementById('area'),'58', '大溪');addOption(document.getElementById('area'),'59', '復興');addOption(document.getElementById('area'),'60', '大園');addOption(document.getElementById('area'),'61', '蘆竹');}if(document.getElementById('city').value == '5'){addOption(document.getElementById('area'),'62', '新竹市');}if(document.getElementById('city').value == '6'){addOption(document.getElementById('area'),'63', '竹北');addOption(document.getElementById('area'),'64', '湖口');addOption(document.getElementById('area'),'65', '新豐');addOption(document.getElementById('area'),'66', '新埔');addOption(document.getElementById('area'),'67', '關西');addOption(document.getElementById('area'),'68', '芎林');addOption(document.getElementById('area'),'69', '寶山');addOption(document.getElementById('area'),'70', '竹東');addOption(document.getElementById('area'),'71', '五峰');addOption(document.getElementById('area'),'72', '橫山');addOption(document.getElementById('area'),'73', '尖石');addOption(document.getElementById('area'),'74', '北埔');addOption(document.getElementById('area'),'75', '峨眉');}if(document.getElementById('city').value == '7'){addOption(document.getElementById('area'),'76', '竹南');addOption(document.getElementById('area'),'77', '頭份');addOption(document.getElementById('area'),'78', '三灣');addOption(document.getElementById('area'),'79', '南庄');addOption(document.getElementById('area'),'80', '獅潭');addOption(document.getElementById('area'),'81', '後龍');addOption(document.getElementById('area'),'82', '通霄');addOption(document.getElementById('area'),'83', '苑裡');addOption(document.getElementById('area'),'84', '苗栗');addOption(document.getElementById('area'),'85', '造橋');addOption(document.getElementById('area'),'86', '頭屋');addOption(document.getElementById('area'),'87', '公館');addOption(document.getElementById('area'),'88', '大湖');addOption(document.getElementById('area'),'89', '泰安');addOption(document.getElementById('area'),'90', '銅鑼');addOption(document.getElementById('area'),'91', '三義');addOption(document.getElementById('area'),'92', '西湖');addOption(document.getElementById('area'),'93', '卓蘭');}if(document.getElementById('city').value == '8'){addOption(document.getElementById('area'),'94', '中區');addOption(document.getElementById('area'),'95', '東區');addOption(document.getElementById('area'),'96', '南區');addOption(document.getElementById('area'),'97', '西區');addOption(document.getElementById('area'),'98', '北區');addOption(document.getElementById('area'),'99', '北屯區');addOption(document.getElementById('area'),'100', '西屯區');addOption(document.getElementById('area'),'101', '南屯區');}if(document.getElementById('city').value == '9'){addOption(document.getElementById('area'),'102', '太平');addOption(document.getElementById('area'),'103', '大里');addOption(document.getElementById('area'),'104', '霧峰');addOption(document.getElementById('area'),'105', '烏日');addOption(document.getElementById('area'),'106', '豐原');addOption(document.getElementById('area'),'107', '后里');addOption(document.getElementById('area'),'108', '石岡');addOption(document.getElementById('area'),'109', '東勢');addOption(document.getElementById('area'),'110', '和平');addOption(document.getElementById('area'),'111', '新社');addOption(document.getElementById('area'),'112', '潭子');addOption(document.getElementById('area'),'113', '大雅');addOption(document.getElementById('area'),'114', '神岡');addOption(document.getElementById('area'),'115', '大肚');addOption(document.getElementById('area'),'116', '沙鹿');addOption(document.getElementById('area'),'117', '龍井');addOption(document.getElementById('area'),'118', '梧棲');addOption(document.getElementById('area'),'119', '清水');addOption(document.getElementById('area'),'120', '大甲');addOption(document.getElementById('area'),'121', '外埔');addOption(document.getElementById('area'),'122', '大安');}if(document.getElementById('city').value == '10'){addOption(document.getElementById('area'),'123', '彰化');addOption(document.getElementById('area'),'124', '芬園');addOption(document.getElementById('area'),'125', '花壇');addOption(document.getElementById('area'),'126', '秀水');addOption(document.getElementById('area'),'127', '鹿港');addOption(document.getElementById('area'),'128', '福興');addOption(document.getElementById('area'),'129', '線西');addOption(document.getElementById('area'),'130', '和美');addOption(document.getElementById('area'),'131', '伸港');addOption(document.getElementById('area'),'132', '員林');addOption(document.getElementById('area'),'133', '社頭');addOption(document.getElementById('area'),'134', '永靖');addOption(document.getElementById('area'),'135', '埔心');addOption(document.getElementById('area'),'136', '溪湖');addOption(document.getElementById('area'),'137', '大村');addOption(document.getElementById('area'),'138', '埔鹽');addOption(document.getElementById('area'),'139', '田中');addOption(document.getElementById('area'),'140', '北斗');addOption(document.getElementById('area'),'141', '田尾');addOption(document.getElementById('area'),'142', '埤頭');addOption(document.getElementById('area'),'143', '溪州');addOption(document.getElementById('area'),'144', '竹塘');addOption(document.getElementById('area'),'145', '二林');addOption(document.getElementById('area'),'146', '大城');addOption(document.getElementById('area'),'147', '芳苑');addOption(document.getElementById('area'),'148', '二水');}if(document.getElementById('city').value == '11'){addOption(document.getElementById('area'),'149', '南投');addOption(document.getElementById('area'),'150', '中寮');addOption(document.getElementById('area'),'151', '草屯');addOption(document.getElementById('area'),'152', '國姓');addOption(document.getElementById('area'),'153', '埔里');addOption(document.getElementById('area'),'154', '仁愛');addOption(document.getElementById('area'),'155', '名間');addOption(document.getElementById('area'),'156', '集集');addOption(document.getElementById('area'),'157', '水里');addOption(document.getElementById('area'),'158', '魚池');addOption(document.getElementById('area'),'159', '信義');addOption(document.getElementById('area'),'160', '竹山');addOption(document.getElementById('area'),'161', '鹿谷');}if(document.getElementById('city').value == '12'){addOption(document.getElementById('area'),'162', '嘉義市');addOption(document.getElementById('area'),'163', '番路');addOption(document.getElementById('area'),'164', '梅山');addOption(document.getElementById('area'),'165', '竹崎');addOption(document.getElementById('area'),'166', '阿里山');addOption(document.getElementById('area'),'167', '中埔');addOption(document.getElementById('area'),'168', '大埔');addOption(document.getElementById('area'),'169', '水上');addOption(document.getElementById('area'),'170', '鹿草');addOption(document.getElementById('area'),'171', '太保');addOption(document.getElementById('area'),'172', '朴子');addOption(document.getElementById('area'),'173', '東石');addOption(document.getElementById('area'),'174', '六腳');addOption(document.getElementById('area'),'175', '新港');addOption(document.getElementById('area'),'176', '民雄');addOption(document.getElementById('area'),'177', '大林');addOption(document.getElementById('area'),'178', '溪口');addOption(document.getElementById('area'),'179', '義竹');addOption(document.getElementById('area'),'180', '布袋');}if(document.getElementById('city').value == '13'){addOption(document.getElementById('area'),'181', '斗南');addOption(document.getElementById('area'),'182', '大埤');addOption(document.getElementById('area'),'183', '虎尾');addOption(document.getElementById('area'),'184', '土庫');addOption(document.getElementById('area'),'185', '褒忠');addOption(document.getElementById('area'),'186', '東勢');addOption(document.getElementById('area'),'187', '臺西');addOption(document.getElementById('area'),'188', '崙背');addOption(document.getElementById('area'),'189', '麥寮');addOption(document.getElementById('area'),'190', '斗六');addOption(document.getElementById('area'),'191', '林內');addOption(document.getElementById('area'),'192', '古坑');addOption(document.getElementById('area'),'193', '莿桐');addOption(document.getElementById('area'),'194', '西螺');addOption(document.getElementById('area'),'195', '二崙');addOption(document.getElementById('area'),'196', '北港');addOption(document.getElementById('area'),'197', '水林');addOption(document.getElementById('area'),'198', '口湖');addOption(document.getElementById('area'),'199', '四湖');addOption(document.getElementById('area'),'200', '元長');}if(document.getElementById('city').value == '14'){addOption(document.getElementById('area'),'201', '中區');addOption(document.getElementById('area'),'202', '東區');addOption(document.getElementById('area'),'203', '南區');addOption(document.getElementById('area'),'204', '西區');addOption(document.getElementById('area'),'205', '北區');addOption(document.getElementById('area'),'206', '安平區');addOption(document.getElementById('area'),'207', '安南區');}if(document.getElementById('city').value == '15'){addOption(document.getElementById('area'),'208', '永康');addOption(document.getElementById('area'),'209', '歸仁');addOption(document.getElementById('area'),'210', '新化');addOption(document.getElementById('area'),'211', '左鎮');addOption(document.getElementById('area'),'212', '玉井');addOption(document.getElementById('area'),'213', '楠西');addOption(document.getElementById('area'),'214', '南化');addOption(document.getElementById('area'),'215', '仁德');addOption(document.getElementById('area'),'216', '關廟');addOption(document.getElementById('area'),'217', '龍崎');addOption(document.getElementById('area'),'218', '官田');addOption(document.getElementById('area'),'219', '麻豆');addOption(document.getElementById('area'),'220', '佳里');addOption(document.getElementById('area'),'221', '西港');addOption(document.getElementById('area'),'222', '七股');addOption(document.getElementById('area'),'223', '將軍');addOption(document.getElementById('area'),'224', '學甲');addOption(document.getElementById('area'),'225', '北門');addOption(document.getElementById('area'),'226', '新營');addOption(document.getElementById('area'),'227', '後壁');addOption(document.getElementById('area'),'228', '白河');addOption(document.getElementById('area'),'229', '東山');addOption(document.getElementById('area'),'230', '六甲');addOption(document.getElementById('area'),'231', '下營');addOption(document.getElementById('area'),'232', '柳營');addOption(document.getElementById('area'),'233', '鹽水');addOption(document.getElementById('area'),'234', '善化');addOption(document.getElementById('area'),'235', '大內');addOption(document.getElementById('area'),'236', '山上');addOption(document.getElementById('area'),'237', '新市');addOption(document.getElementById('area'),'238', '安定');}if(document.getElementById('city').value == '16'){addOption(document.getElementById('area'),'239', '新興區');addOption(document.getElementById('area'),'240', '前金區');addOption(document.getElementById('area'),'241', '苓雅區');addOption(document.getElementById('area'),'242', '鹽埕區');addOption(document.getElementById('area'),'243', '鼓山區');addOption(document.getElementById('area'),'244', '旗津區');addOption(document.getElementById('area'),'245', '前鎮區');addOption(document.getElementById('area'),'246', '三民區');addOption(document.getElementById('area'),'247', '楠梓區');addOption(document.getElementById('area'),'248', '小港區');addOption(document.getElementById('area'),'249', '左營區');}if(document.getElementById('city').value == '17'){addOption(document.getElementById('area'),'250', '仁武');addOption(document.getElementById('area'),'251', '大社');addOption(document.getElementById('area'),'252', '岡山');addOption(document.getElementById('area'),'253', '路竹');addOption(document.getElementById('area'),'254', '阿蓮');addOption(document.getElementById('area'),'255', '田寮');addOption(document.getElementById('area'),'256', '燕巢');addOption(document.getElementById('area'),'257', '橋頭');addOption(document.getElementById('area'),'258', '梓官');addOption(document.getElementById('area'),'259', '彌陀');addOption(document.getElementById('area'),'260', '永安');addOption(document.getElementById('area'),'261', '湖內');addOption(document.getElementById('area'),'262', '鳳山');addOption(document.getElementById('area'),'263', '大寮');addOption(document.getElementById('area'),'264', '林園');addOption(document.getElementById('area'),'265', '鳥松');addOption(document.getElementById('area'),'266', '大樹');addOption(document.getElementById('area'),'267', '旗山');addOption(document.getElementById('area'),'268', '美濃');addOption(document.getElementById('area'),'269', '六龜');addOption(document.getElementById('area'),'270', '內門');addOption(document.getElementById('area'),'271', '杉林');addOption(document.getElementById('area'),'272', '甲仙');addOption(document.getElementById('area'),'273', '桃源');addOption(document.getElementById('area'),'274', '三民');addOption(document.getElementById('area'),'275', '茂林');addOption(document.getElementById('area'),'276', '茄萣');}if(document.getElementById('city').value == '18'){addOption(document.getElementById('area'),'277', '屏東');addOption(document.getElementById('area'),'278', '三地');addOption(document.getElementById('area'),'279', '霧臺');addOption(document.getElementById('area'),'280', '瑪家');addOption(document.getElementById('area'),'281', '九如');addOption(document.getElementById('area'),'282', '里港');addOption(document.getElementById('area'),'283', '高樹');addOption(document.getElementById('area'),'284', '鹽埔');addOption(document.getElementById('area'),'285', '長治');addOption(document.getElementById('area'),'286', '麟洛');addOption(document.getElementById('area'),'287', '竹田');addOption(document.getElementById('area'),'288', '內埔');addOption(document.getElementById('area'),'289', '萬丹');addOption(document.getElementById('area'),'290', '潮州');addOption(document.getElementById('area'),'291', '泰武');addOption(document.getElementById('area'),'292', '來義');addOption(document.getElementById('area'),'293', '萬巒');addOption(document.getElementById('area'),'294', '崁頂');addOption(document.getElementById('area'),'295', '新埤');addOption(document.getElementById('area'),'296', '南州');addOption(document.getElementById('area'),'297', '林邊');addOption(document.getElementById('area'),'298', '東港');addOption(document.getElementById('area'),'299', '琉球');addOption(document.getElementById('area'),'300', '佳冬');addOption(document.getElementById('area'),'301', '新園');addOption(document.getElementById('area'),'302', '枋寮');addOption(document.getElementById('area'),'303', '枋山');addOption(document.getElementById('area'),'304', '春日');addOption(document.getElementById('area'),'305', '獅子');addOption(document.getElementById('area'),'306', '車城');addOption(document.getElementById('area'),'307', '牡丹');addOption(document.getElementById('area'),'308', '恆春');addOption(document.getElementById('area'),'309', '滿州');}if(document.getElementById('city').value == '19'){addOption(document.getElementById('area'),'310', '宜蘭');addOption(document.getElementById('area'),'311', '頭城');addOption(document.getElementById('area'),'312', '礁溪');addOption(document.getElementById('area'),'313', '壯圍');addOption(document.getElementById('area'),'314', '員山');addOption(document.getElementById('area'),'315', '羅東');addOption(document.getElementById('area'),'316', '三星');addOption(document.getElementById('area'),'317', '大同');addOption(document.getElementById('area'),'318', '五結');addOption(document.getElementById('area'),'319', '冬山');addOption(document.getElementById('area'),'320', '蘇澳');addOption(document.getElementById('area'),'321', '南澳');}if(document.getElementById('city').value == '20'){addOption(document.getElementById('area'),'322', '花蓮');addOption(document.getElementById('area'),'323', '新城');addOption(document.getElementById('area'),'324', '秀林');addOption(document.getElementById('area'),'325', '吉安');addOption(document.getElementById('area'),'326', '壽豐');addOption(document.getElementById('area'),'327', '鳳林');addOption(document.getElementById('area'),'328', '光復');addOption(document.getElementById('area'),'329', '豐濱');addOption(document.getElementById('area'),'330', '瑞穗');addOption(document.getElementById('area'),'331', '萬榮');addOption(document.getElementById('area'),'332', '玉里');addOption(document.getElementById('area'),'333', '卓溪');addOption(document.getElementById('area'),'334', '富里');}if(document.getElementById('city').value == '21'){addOption(document.getElementById('area'),'335', '臺東');addOption(document.getElementById('area'),'336', '鹿野');addOption(document.getElementById('area'),'337', '成功');addOption(document.getElementById('area'),'338', '達仁');}if(document.getElementById('city').value == '22'){addOption(document.getElementById('area'),'339', '馬公');addOption(document.getElementById('area'),'340', '西嶼');addOption(document.getElementById('area'),'341', '望安');addOption(document.getElementById('area'),'342', '七美');addOption(document.getElementById('area'),'343', '白沙');addOption(document.getElementById('area'),'344', '湖西');}
}
////////////////// 

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);
}