var citycode = {
	"AAT":"Aletai","AKA":"Ankang","AQG":"Anqing","BAV":"Baotou","BHY":"Beihai","BSD":"Baoshan","CAN":"Guangzhou","CGD":"Changde","BPX":"Changdu","CGO":"Zhengzhou","CGQ":"Changchun","CHG":"Chaoyang","CIF":"Chifeng","CIH":"Changzhi","CKG":"Chongqing","NKG":"Nanjing","CSX":"Changsha","CTU":"Chengdu","CZX":"Changzhou","DQA":"Daqing","DAX":"Dazhou","DAT":"Datong","DDG":"Dandong","DLC":"Dalian","DLU":"Dali","DNH":"Dunhuang","DYG":"Zhangjiajie","ENH":"Enshi","ENY":"Yan An","DSN":"Er Duosi","FOC":"Fuzhou","FUG":"Fuyang","GYS":"Guangyuan","GOQ":"Ge Ermu","HAK":"Haikou","HEK":"Heihe","HET":"Huhehaote","HFE":"Hefei","HGH":"Hangzhou","HKG":"Hongkong","HLD":"Hailaer","HLH":"Wulanhaote","HNY":"Hengyang","HRB":"Haerbin",
	"HTN":"Hetian","HYN":"Taizhou","HZG":"Hanzhong","INC":"Yinchuan","JDZ":"Jingdezhen","JGN":"Jiayuguan","JGS":"Jinggangshan","JHG":"Xishuangbanna","JIL":"Jilin","JJN":"Quanzhou","JIU":"Jiujiang","JMU":"Jiamusi","JNZ":"Jinzhou","JUZ":"Quzhou","JZH":"Jiuzhaigou","KHG":"Kashi","KHN":"Nanchang","KMG":"Kunming","KNC":"Ji An","KOW":"Ganzhou","KWE":"Guiyang","KWL":"Guilin","LHW":"Lanzhou","LJG":"Lijiang","LUM":"Mangshi",'LXA':'LASA','LZY':'LINZHI',"LYA":"Luoyang","LYG":"Lianyungang","LYI":"Linyi","LZH":"Liuzhou","LZO":"Luzhou","MIG":"Mianyang","MDG":"Mudanjiang","MXZ":"Meixian","NAO":"Nanchong","NDG":"QIQIHAER","NGB":"Ningbo","NNG":"Nanning","NNY":"Nanyang","NTG":"Nantong","NZH":"Manzhouli",
	"PEK":"Beijing","PVG":"Shanghai Pudong","PZI":"Panzhihua","SHA":"Shanghai Hongqiao","SHE":"Shenyang","SHP":"Qinhuangdao","SHS":"Shashi","SIA":"Xi An","SJW":"Shijiazhuang","SWA":"Shantou","SYM":"Simao","SYX":"Sanya","SZX":"Shenzhen","TAO":"Qingdao","TGO":"Tongliao","TNA":"Jinan","TCZ":"Tengchong","TSN":"Tianjin","TXN":"Huangshan","TYN":"Taiyuan","URC":"Wulumuqi","UYN":"Yulin","WEF":"Weifang","WEH":"Weihai","WNZ":"Wenzhou","WUH":"Wuhan","WUX":"Wuxi","WUS":"Wuyishan","WUZ":"Wuzhou","WXN":"Wanxian","XFN":"Xiangfan","XIC":"Xichang","XIL":"Xilinhaote","XIY":"Xi An","XMN":"Xiamen","XNN":"Xining","XUZ":"Xuzhou","YBP":"Yibin","YCU":"Yuncheng","YIH":"Yichang","YIN":"Yining","YIW":"Yiwu",
	"YNJ":"Yanji","YNT":"Yantai","YNZ":"Yancheng","ZAT":"Zhaotong","ZHA":"Zhanjiang","ZUH":"Zhuhai","ZYI":"Zunyi",
	"BKK":"Bangkok","MAD":"Madrid","DXB":"Dubai","DEL":"Delhi","FRA":"Frankfort","FUK":"Fukuoka","FNJ":"Pyongyang","HIJ":"Hiroshima","SGN":"Ho Chi Minh","HKG":"Hong Kong","JKT":"Jakarta","KHI":"Karachi",'KTM':"Kathmandu","KUL":"Kuala Lumpur","KWI":"Kuwait","LON":"London","LAX":"Los Angeles","MEL":"Melbourne","MIL":"Milan","MOW":"Moscow","MUC":"Munich","NYC":"New York","NGO":"Nagoya","OSA":"Osaka","PAR":"Paris","PUS":"Pusan","RGN":"Rangoon","ROM":"Rome","SFO":"San Francisco","SAO":"Sao Paulo","SDJ":"Sendai","SEL":"Seoul","SIN":"Singapore","STO":"Stockholm","SYD":"Sydney","TAE":"Taegu","TYO":"Tokyo","ULN":"Ulan Bator","ATH":"Athens","YVR":"Vancouver","SPK":"Sapporo","TPE":"Taipei",
	"blue":"------------------------"
}


var domesticcitycode = new Array("PEK","AAT","AKA","AQG","BSD","BAV","BHY","CGD","BPX","CGQ","CSX","CZX","CIH","CHG","CTU","CIF","CKG","DQA","DLU","DLC","DAT","DDG","DAX","DNH","ENH","DSN","FUG","FOC","KOW","GOQ","GYS","CAN","KWL","KWE","HRB","HLD","HAK","HGH","HZG","TXN","HFE","HEK","HNY","HTN","HET","KNC","TNA","JMU","JGN","JIL","JDZ","JGS","JJN","JIU","JZH","JNZ","KHG","KMG",'LXA',"LHW","LJG",'LZY',"LYG","LYI","LZH","LYA","LZO","LUM","NZH","MXZ","MIG","MDG","KHN","NAO","NKG","NNG","NTG","NNY","NGB","PZI","TAO","SHP","NDG","JUZ","PVG","SHA","SYX","SHS","SWA","SHE","SZX","SJW","SYM","TYN","HYN","TCZ","TSN","TGO","WXN","WEF","WEH","WNZ","WUH","HLH","WUH","URC","WUX","WUS","WUZ","XIY","XMN","XFN","XIC","XIL","XNN","JHG","XUZ","ENY","YNZ","YNJ","YNT","YBP","YIH","INC","YIN","YIW","YCU","UYN","ZAT","ZHA","DYG","CGO","ZUH","ZYI"
);
var domesticcitycodestr = domesticcitycode.join(",");

var internationalcitycode = new Array("BKK","MAD","DXB","DEL","FRA","FUK","FNJ","HIJ","SGN","HKG","JKT","KHI",'KTM',"KUL","KWI","LON","LAX","MEL","MIL","MOW","MUC","NYC","NGO","OSA","PAR","PUS","RGN","ROM","SFO","SAO","SDJ","SEL","SIN","STO","SYD","TAE","TYO","ULN","ATH","YVR","SPK","TPE");
var internationalcitycodestr = internationalcitycode.join(",");

var alerttpestr="尊敬的旅客：\n\t您好，由于台湾航线具有一定特殊性，请您购票前确认自身条件符合《大陆居民赴台湾地区旅游管理办法》、《大陆居民赴台湾地区旅游注意事项》、《大陆居民赴台湾地区旅游领队人员管理办法》、《<大陆居民赴台湾地区旅游团名单表>管理办法》等相关规定。如因旅客违反此类规定造成的无法乘机等损失，将由旅客自行承担，国航对此不承担任何责任，谢谢您的配合。\n\t\t\t\t\t\t\t\t\t中国国际航空公司\n\t\t\t\t\t\t\t\t\t2008年7月4日";
//单程--北京--到达城市
var oneway_pek = new 
Array('BAV','BHY','CGD','CZX','CGQ','CSX','CTU','CKG','DQA','DLC','DAT','DAX','DDG','DSN','FOC','CAN','KWL','KWE','HRB','HAK','HLD','HGH','HFE','HET','TXN','JGS','JJN','JMU','JZH','KMG','LHW','LXA','MIG','KHN','NKG','NNG','NTG','NDG','NGB','SHP','TAO','SYX','SWA','SHA','PVG','SZX','SHE','TNA','TYN','WEH','WNZ','URC','WUH','WUS','WUX','XIY','XNN','XIL','XMN','XFN','XUZ','YCU','YNZ','YNT','YNJ','YIH','YIW','INC','DYG','CGO','ZUH');
//往返--北京--到达城市
var return_pek = new Array('BAV','BHY','CGD','CGQ','CZX','CSX','CTU','CKG','DQA','DLC','DDG','DAT','DAX','DSN','FOC','CAN','KWL','KWE','HRB','HAK','HLD','HGH','HFE','HET','TXN','JJN','JMU','JZH','KMG','LHW','LXA','MIG','KHN','NKG','NNG','NTG','NGB','TAO','SYX','SWA','SHA','PVG','SZX','SHE','TNA','TYN','WEH','WNZ','URC','WUH','WUX','WUS','XIY','XNN','XIL','XMN','XFN','XUZ','YCU','YNZ','YNJ','YNT','YIH','YIW','INC','DYG','CGO','ZUH');
//单程(国际)--北京--到达城市
var oneway_pek_i = new Array('ATH','BKK','DXB','DEL','FNJ','FRA','FUK','HIJ','SGN','HKG','JKT','KHI','KUL','KWI','LON','LAX','MAD','MEL','MOW','MUC','NYC','NGO','OSA','PAR','PUS','RGN','ROM','SFO','SAO','SDJ','SEL','SIN','SPK','STO','SYD','TAE','TYO','ULN','YVR');
//往返(国际)--北京--到达城市
var return_pek_i = new Array('ATH','BKK','DEL','DXB','FRA','FUK','HIJ','HKG','JKT','KUL','LAX','LON','MAD','MEL','MUC','NGO','NYC','OSA','PAR','PUS','ROM','SAO','SDJ','SEL','SGN','SFO','SPK','SYD','STO','SIN','TAE','TYO','ULN','YVR');

//单程--上海虹桥--到达城市
var oneway_sha = new Array('PEK','BAV','CAN','DSN','KWE','KWL','HLD','HET','TNA','KMG','TAO','SZX','TSN','WUH','XMN','YNT');
//往返--上海虹桥--到达城市
var return_sha = new Array('PEK','CAN','DSN','KWE','KWL','HET','TNA','KMG','TAO','SZX','TSN','WUH','XMN','YNT');
//单程(国际)--上海虹桥--到达城市
var oneway_sha_i = new Array('ATH','FUK','FRA','LAX','LON','MAD',"MEL",'MIL','MOW','MUC','NGO','OSA','PAR',"ROM",'SDJ','SAO','SFO','SYD','STO','TYO','YVR');
//往返(国际)--上海虹桥--到达城市
var return_sha_i = new Array('ATH','FRA','FUK','LAX','LON','MAD','MEL','MIL','OSA','PAR','ROM','SAO','SYD','MUC','NGO','SDJ','SFO','STO','TYO','YVR');

//单程--广州--到达城市
var oneway_can = new Array('PEK','BAV','CSX','CGQ','DLC','CTU','CKG','DAX','DSN','KWL','KWE','HRB','HGH','HET','LZO','MIG','SHA','TSN','NKG','WXN','WNZ','YBP','INC','XIC','XIY','YCU');
//往返--广州--到达城市
var return_can = new Array('PEK','CSX','CTU','CKG','DAX','DSN','KWL','KWE','HGH','HET','LZO','MIG','NKG','SHA','TSN','NKG','WXN','WNZ','YBP','YCU');

//单程--深圳--到达城市
var oneway_szx = itemcode=new Array('PEK','BAV','CGQ','CTU','CKG','DLC','CAN','KWE','HET','HLD','HRB','HGH','JHG','JZH','LJG','KMG','SHA','PVG','TSN','SHE','URC','YNJ','ZUH');
//往返--深圳--到达城市
var return_szx = itemcode=new Array('PEK','CTU','CKG','KWE','HGH','KMG','SHA','PVG','TSN');
//单程(国际)--深圳--到达城市
var oneway_szx_i = itemcode=new Array('OSA','TYO');
//往返(国际)--深圳--到大城市
var return_szx_i = itemcode=new Array('OSA','TYO');

//单程--成都--到达城市
var oneway_ctu = new Array('PEK','BAV','CSX','CIH','CKG','CGQ','DLC','DAX','FOC','CAN','KWL','KWE','HLD','HRB','HAK','HGH','HFE','HET','INC','JZH','KMG','LHW','LXA','LZY','LJG','LZO','LUM','KHN','NKG','NNG','NTG','PZI','TAO','SYX','SHA','PVG','SZX','SHE','TYN','TCZ','TSN','WEH','WNZ','URC','WUH','XIY','XIC','XMN','XNN','JHG','XIL','YNJ','YNT','YBP','YCU','ZHA','CGO');
//往返--成都--到达城市
var return_ctu = new Array('PEK','CGQ','CSX','CIH','CKG','DAX','FOC','CAN','KWL','KWE','HRB','HAK','HGH','HET','INC','JZH','KMG','LHW','LJG','LXA','LZY','LZO','KHN','NKG','NNG','PZI','TAO','SYX','SHA','PVG','SZX','SHE','TCZ','TSN','TYN','WNZ','URC','WUH','XIY','XIC','JHG','XMN','XNN','YBP','CGO');
//单程(国际)--成都--到达城市
var oneway_ctu_i = new Array('BKK','FUK','HKG','KTM','SEL','SIN','TYO');
//往返(国际)--成都--到达城市
var return_ctu_i = new Array('BKK','FUK','KTM','SEL','SIN','TYO');

//单程--重庆--到达城市
var oneway_ckg = new Array('PEK','BAV','CGQ','CSX','CTU','DLC','FOC','CAN','KWL','KWE','HLD','HAK','HGH','HFE','HET','HRB','TNA','JZH','KMG','LHW','LJG','LXA','KHN','NKG','NTG','TAO','SYX','SHA','PVG','SZX','SHE','TSN','WXN','WEH','WNZ','URC','XMN','XNN','XIC','XIL','YNJ','YNT','CGO');
//往返--重庆--到达城市
var return_ckg = new Array('PEK','CSX','CTU','FOC','CAN','KWL','KWE','HAK','HGH','HFE','JZH','KMG','LHW','LXA','NKG','TAO','SYX','SHA','PVG','SZX','SHE','TSN','WNZ','WXN','URC','XMN','CGO');
//单程(国际)--重庆--到达城市
var oneway_ckg_i = new Array('HKG','NGO');
//往返(国际)--重庆--到达城市
var return_ckg_i = new Array('HKG','NGO');

//单程--杭州--到达城市
var oneway_hgh = new Array('PEK','BAV','CGQ','CSX','CTU','CKG','DLC','CAN','KWE','HRB','HAK','HLD','HET','JZH','JHG','KMG','LHW','LZO','LUM','MIG','TAO','SZX','SHE','TYN','WXN','WNZ','WUH','URC','YBP','YNJ','XIY','XIC','XNN','XIL','DYG');
//往返--杭州--到达城市
var return_hgh = new Array('PEK','CSX','CTU','CKG','DLC','CAN','KWE','HRB','HAK','HET','KMG','TAO','SZX','WNZ','WUH','URC','XIY','XNN','DYG');
//单程(国际)--杭州--到达城市
var oneway_hgh_i = new Array('PUS','HKG','SEL','TAE','LON');
//往返(国际)--杭州--到达城市
var return_hgh_i = new Array('HKG','PUS','SEL','TAE','LON');

//单程--昆明--到达城市
var oneway_kmg =new Array('PEK','CTU','CKG','KWL','KWE','HGH','JHG','LUM','LJG','SHA','PVG','SZX','WNZ','XMN');
//往返--昆明--到达城市
var return_kmg = new Array('PEK','CTU','CKG','KWL','KWE','HGH','SHA','PVG','LJG','SZX','WNZ','XMN');
//单程(国际)--昆明--到达城市
var oneway_kmg_i =new Array('RGN');
//往返(国际)--昆明--到达城市
var return_kmg_i =new Array('RGN');

//单程--厦门--到达城市
var oneway_xmn = new Array('PEK','BAV','CGQ','CSX','DLC','CTU','CKG','KWL','KWE','HRB','HET','HLD','KMG','LHW','LUM','KHN','SHA','TSN','XIC','SHE','TYN','URC','XIL','YNJ','YNT');
//往返--厦门--到达城市
var return_xmn =  new Array('PEK','CSX','CTU','CKG','KWL','KWE','KMG','KHN','SHA');
//单程(国际)--厦门--到达城市
var oneway_xmn_i = new Array('JKT','SIN');
//往返(国际)--厦门--到达城市
var return_xmn_i =  new Array('JKT','SIN');

//单程--福州--到达城市
var oneway_foc = new Array('PEK','CSX','CTU','CKG','KWE','KHN');
//往返--福州--到达城市
var return_foc = new Array('PEK','CSX','CTU','CKG','KWE','KHN','JZH','LJG','BAV','CGQ','DLC','HET','HLD','HRB','LHW','NTG','SHE','WEH','XIL','XIY','YNJ','URC');

//单程--沈阳--到达城市
var oneway_she = new Array('PEK','CTU','CKG','LJG','SYX','XIC','BAV','CZX','HET','HFE','HGH','HLD','JGS','NGB','SWA','TYN','CAN','CGO','CSX','DYG','FOC','HAK','JZH','KHN','KMG','KWE','KWL','LHW','NNG','SZX','URC','WNZ','WUH','XIY','XMN');
//往返--沈阳--到达城市
var return_she = new Array('PEK','CTU','CKG');
//单程(国际)--沈阳--到达城市
var oneway_she_i = new Array('FRA','LAX','ROM','SFO','SIN');
//往返(国际)--沈阳--到达城市
var return_she_i = new Array('FRA','LAX','ROM','SFO','SIN');

//单程--西安--到达城市
var oneway_xiy = new Array('PEK','CTU','CKG','KWL','HGH','SHA','PVG','TSN','HAK','KWE','LJG','PZI','SYX','URC','WNZ','XIC','XMN','CAN','SZX','BAV','CGQ','DLC','HET','HLD','TAO','YNJ','YNT','HRB','SHE');
//往返--西安--到达城市
var return_xiy = new Array('PEK','CTU','HGH','SHA','PVG','TSN');

//单程--南京--到达城市
var oneway_nkg = new Array('PEK','CTU','CAN','CKG','KWL','TSN','LJG','JZH','KMG','CGQ','DLC','HLD','HRB','SHE','YNJ','BAV','HET','LHW','URC');
//往返--南京--到达城市
var return_nkg = new Array('PEK','CTU','CKG','CAN','KWL','TSN');

//单程--呼和浩特--到达城市
var oneway_het = new Array('PEK','CTU','CIF','CAN','HLD','HGH','NZH','TGO','XIL','SHA','HLH','WUH','CGO','WXN','YBP','CGQ','CSX','CZX','DLC','DNH','DYG','FOC','HFE','HRB','JGS','KHN','LHW','NGB','NKG','NTG','PVG','XIY','SWA','TAO','TXN','URC','WEH','XFN','XNN','YCU','YNJ','YNT','ZUH','MIG','NNG','HAK','KMG','SZX','CKG','KWE','KWL','WNZ','XMN');
//往返--呼和浩特--到达城市
var return_het = new Array('PEK','CTU','CIF','CAN','HLD','HGH','NZH','TGO','XIL','SHA','HLH','WUH','CGO');

//单程--青岛--到达城市
var oneway_tao = new Array('PEK','CSX','CTU','CKG','KWE','HRB','HGH','SHA','GOQ','PZI','JZH','BAV','CGQ','DNH','HET','HLD','LHW','TYN','XIL','XIY','YNJ','XNN','KMG','URC','KWL');
//往返--青岛--到达城市
var return_tao = new Array('PEK','CSX','CTU','CKG','KWE','HRB','HGH','SHA');
//单程(国际)--青岛--到达城市
var oneway_tao_i = new Array('PUS','SEL','TAE');
//往返(国际)--青岛--到达城市
var return_tao_i = new Array('SEL');

//单程--大连--到达城市
var oneway_dlc = new Array('PEK','CTU','HGH','KHN','KMG','KWE','LHW','KWL','MIG','NKG','NNG','NTG','SWA','SZX','TXN','TYN','URC','WNZ','WUH','XFN','XIL','XIY','XMN','YCU','YNZ');
//往返--大连--到达城市
var return_dlc = new Array('PEK','CTU','HGH');
//单程(国际)--大连--到达城市
var oneway_dlc_i = new Array('FUK','HIJ','HKG','MUC','OSA','SDJ','SEL','TYO');
//往返(国际)--大连--到达城市
var return_dlc_i = new Array('FUK','HIJ','HKG','MUC','OSA','SDJ','SEL','TYO');

//单程--哈尔滨--到达城市
var oneway_hrb = new Array('PEK','HGH','TAO','TSN','JZH','LJG','XIC','DNH','HET','NGB','NTG','XIY','SWA','ZUH','NKG','CGO','HFE','FOC','HAK','KHN','LHW','NNG','TYN','URC','WNZ','BAV','DYG','CSX','KWE','KWL','WUH','CAN','CKG','KMG','SZX','XMN','CTU');
//往返--哈尔滨--到达城市
var return_hrb = new Array('PEK','HGH','TAO','TSN');

//单程--三亚--到达城市
var oneway_syx = new Array('PEK','CTU','CKG','KWE','JZH','LHW','XNN');
//往返--三亚--到达城市
var return_syx = new Array('PEK','CTU','CKG','KWE');

//单程--海口--到达城市
var oneway_hak = itemcode=new Array('PEK','CTU','CKG','KWE','HGH','JZH','HLD','SHE','WEH');
//往返--海口--到达城市
var return_hak = itemcode=new Array('PEK','CTU','CKG','KWE','HGH');

//单程--九寨沟--到达城市
var oneway_jzh = new Array('PEK','CTU','CKG');
//往返--九寨沟--到达城市
var return_jzh = new Array('PEK','CTU','CKG');


//单程--徐州--到达城市
var oneway_xuz = new Array('PEK');
//往返--徐州--到达城市
var return_xuz = new Array('PEK');

//单程--拉萨--到达城市
var oneway_lxa = new Array('PEK','CTU','CKG','XNN');
//往返--拉萨--到达城市
var return_lxa = new Array('PEK','CTU','CKG','XNN');
var oneway_lxa_i = new Array('KTM');
//往返(国际)--拉萨--到达城市
var return_lxa_i = new Array('KTM');

//单程--林芝--到达城市
var oneway_lzy = new Array('CTU');
//往返--林芝--到达城市
var return_lzy = new Array('CTU');

//单程--天津--到达城市
var oneway_tsn = new Array('CTU','CKG','CAN','KWL','NKG','SHA','SZX','URC','XIY','XMN','DYG');
//往返--天津--到达城市
var return_tsn = new Array('CTU','CKG','CAN','KWL','NKG','SHA','SZX','URC','XIY','XMN');
//单程(国际)--天津--到达城市
var oneway_tsn_i = new Array('HKG','SEL');
//往返(国际)--天津--到达城市
var return_tsn_i = new Array('HKG','SEL');

//单程--温州--到达城市
var oneway_wnz = new Array('PEK','CSX','CTU','CKG','CAN','HGH','KMG','PVG','LZO','YBP','JZH','KWL','NNG','BAV','CGQ','DLC','HET','HLD','HRB','SHE','XIL','YNJ','LHW','URC','XIY');
//往返--温州--到达城市
var return_wnz = new Array('PEK','CSX','CTU','CKG','CAN','HGH','KMG','PVG');

//单程--乌鲁木齐--到达城市
var oneway_urc = new Array('PEK','CTU','CKG','HGH','LHW','TSN','XNN','CAN','KMG','KWL','NNG','SYX','SZX','TNA','FOC','KHN','NKG','SHA','XMN','JZH','KWE','LJG','WUH','XIC','BAV','CGQ','DLC','HET','HLD','HRB','NTG','SHE','TAO','WEH','XFN','YNJ','YNT','PVG','TYN','WNZ');
//往返--乌鲁木齐--到达城市
var return_urc = new Array('PEK','CTU','CKG','HGH','LHW','TSN','XNN');

//单程--桂林--到达城市
var oneway_kwl = new Array('PEK','CTU','CKG','CAN','CGO','HGH','KMG','NKG','SHA','WNZ','JZH','LJG','XNN','TSN','BAV','CGQ','HLD','HRB','SHE','TNA','YNJ','URC','HET','TAO','YNT');
//往返--桂林--到达城市
var return_kwl = new Array('PEK','CTU','CKG','CAN','CGO','HGH','KMG','NKG','SHA');

//单程--长沙--到达城市
var oneway_csx = new Array('PEK','CTU','CKG','FOC','CAN','KWE','HGH','TAO','WNZ','XMN','PZI','XIY','XIC','JZH','KMG','LHW','BAV','CGO','CGQ','DAT','DDG','DLC','HET','HLD','HRB','SHE','TNA','TYN','WEH','XIL','YNJ','URC','XNN');
//往返--长沙--到达城市
var return_csx = new Array('PEK','CTU','CKG','FOC','CAN','KWE','HGH','TAO','WNZ','XMN');

//单程--武汉--到达城市
var oneway_wuh = new Array('PEK','CTU','HGH','HET','SHA','PVG','XNN','BAV','CGQ','DLC','HET','HRB','SHE','YNJ','URC');
//往返--武汉--到达城市
var return_wuh = new Array('PEK','CTU','HGH','HET','SHA','PVG');
//单程(国际)--武汉--到达城市
var oneway_wuh_i = new Array('HKG');
//往返(国际)--武汉--到达城市
var return_wuh_i = new Array('HKG');

//单程--贵阳--到达城市
var oneway_kwe = new Array('PEK','CSX','CTU','CKG','FOC','CAN','HAK','HGH','KMG','TAO','SYX','SHA','PVG','SZX','XMN','ZHA','KWL','CGO','DAX','JZH','XIY','URC','XIC','XNN','NKG','WNZ','TSN','BAV','DLC','HLD','TXN','WEH','XIL','YNJ','YCU','CGQ','HRB','LHW','SHE','TYN','HET','YNT');
//往返--贵阳--到达城市
var return_kwe = new Array('PEK','CSX','CTU','CKG','FOC','HAK','HGH','TAO','SYX','SHA','PVG','SZX','XMN');
//单程(国际)--贵阳--到达城市
var oneway_kwe_i = new Array('HKG');
//往返(国际)--贵阳--到达城市
var return_kwe_i = new Array('HKG');

//单程--汕头--到达城市
var oneway_swa = new Array('PEK','BAV','DLC','HET','HLD','HRB','SHE','TNA','WEH','XIL','YNJ','YNT');
//往返--汕头--到达城市
var return_swa = new Array('PEK');

//单程--银川--到达城市
var oneway_inc = new Array('PEK','CAN','HAK','KMG','KWE','LJG','SYX','SZX','CGQ','DLC','HFE','HRB','SHE','TAO','WEH','WNZ','YNJ','YNT','FOC','HGH','NKG','SHA','XMN');
//往返--银川--到达城市
var return_inc = new Array('PEK');

//单程--长春--到达城市
var oneway_cgq = new Array('PEK','CTU','BAV','CAN','CKG','CSX','DAT','DYG','FOC','HAK','HET','HFE','HGH','INC','KHN','KMG','KWE','KWL','LHW','NGB','NKG','NNG','NTG','SHA','SZX','SWA','TYN','URC','WNZ','WUH','XIY','XMN','XNN');
//往返--长春--到达城市
var return_cgq = new Array('PEK','CTU','BAV','CAN','CKG','CSX','DAT','DYG','FOC','HAK','HET','HFE','HGH','INC','KHN','KMG','KWE','KWL','LHW','NGB','NKG','NNG','NTG','SHA','SZX','SWA','TYN','URC','WNZ','WUH','XIY','XMN','XNN');

//单程--郑州--到达城市
var oneway_cgo = new Array('PEK','CTU','CKG','HET','WUH','BAV','CGQ','CSX','DDG','DLC','DYG','HFE','HLD','HRB','JGS','KHN','KMG','KWL','LHW','NKG','NTG','SHE','XIY','TAO','URC','WEH','XIL','YNJ','YNT');
//往返--郑州--到达城市
var return_cgo = new Array('PEK','CTU','CKG','HET','WUH');

//单程--南宁--到达城市
var oneway_nng = new Array('PEK','CTU');
//往返--南宁--到达城市
var return_nng = new Array('PEK','CTU');
//单程(国际)--南宁--到达城市
var oneway_nng_i = new Array('SGN');
//往返(国际)--南宁--到达城市
var return_nng_i = new Array('SGN');

//单程--兰州--到达城市
var oneway_lhw = new Array('PEK','CTU','CKG','URC','CAN','HAK','KWE','LJG','NNG','PVG','SYX','SZX','BAV','CGQ','DLC','FOC','HET','HRB','SHA','SHE','TAO','WNZ','YNT','HGH','NKG','XMN');
//往返--兰州--到达城市
var return_lhw = new Array('PEK','CTU','CKG','URC');

//单程--南昌--到达城市
var oneway_khn = new Array('PEK','CKG','CTU','FOC','XMN','PZI','BAV','DLC','HLD','NTG','NGB','WEH','XFN','XIL','YCU','YNJ','YNT','CGO','CGQ','HET','HRB','SHE','URC','WUH');
//往返--南昌--到达城市
var return_khn = new Array('PEK','CKG','CTU','FOC','NGB','XMN');

//单程--西宁--到达城市
var oneway_xnn = new Array('PEK','URC','GOQ','CAN','CKG','CSX','CTU','HAK','KMG','KWE','KWL','LJG','NNG','PVG','SYX','SZX','WUH','XIC','CGQ','DLC','TYN','FOC','HFE','HGH','HRB','KHN','NKG','SHE','WNZ','TAO','XMN');
//往返--西宁--到达城市
var return_xnn = new Array('PEK','URC','GOQ','CTU');

//单程--烟台--到达城市
var oneway_ynt = new Array('BAV','PEK','CGQ','LHW','SHA','PVG','SHE','CSX','HAK','HET','HGH','HLD','HRB','KHN','KMG','NKG','NNG','SWA','TYN','URC','WUH','XIY','YNJ','CAN','CKG','CTU','KWE','KWL','SZX','XMN');
//往返--烟台--到达城市
var return_ynt = new Array('PEK','SHA','PVG');
//单程(国际)--烟台--到达城市
var oneway_ynt_i = new Array('SEL');
//往返(国际)--烟台--到达城市
var return_ynt_i = new Array('SEL');

//单程--丽江--到达城市
var oneway_ljg = new Array('CKG','CTU','KMG');
//往返--丽江--到达城市
var return_ljg = new Array('CKG','CTU','KMG');

//单程--威海--到达城市
var oneway_weh = new Array('PEK','BAV','CAN','CGQ','CKG','CSX','CTU','FOC','HAK','HET','HGH','HLD','HRB','INC','KHN','KMG','KWE','LHW','MIG','NKG','NNG','SHE','SWA','SZX','TYN','URC','WUH','XIY','XMN','YNJ');
//往返--威海--到达城市
var return_weh = new Array('PEK');
//单程(国际)--威海--到达城市
var oneway_weh_i = new Array('SEL');
//往返(国际)--威海--到达城市
var return_weh_i = new Array('SEL');

//单程--武夷山--到达城市
var oneway_wus = new Array('PEK','CGQ','HRB','HET','SHE','YNJ');
//往返--武夷山--到达城市
var return_wus = new Array('PEK');

//单程--屯溪--到达城市
var oneway_txn = new Array('PEK','CGQ','INC','URC','XNN','YNJ');
//往返--屯溪--到达城市
var return_txn = new Array('PEK');

//单程--张家界--到达城市
var oneway_dyg = new Array('BAV','PEK','CGQ','HGH','HET','HLD','TAO','TSN','WEH','XIL','YNJ','CGO');
//往返--张家界--到达城市
var return_dyg = new Array('PEK','HGH','TSN');

//单程--西双版纳--到达城市
var oneway_jhg = new Array('KMG','LJG');
//往返--西双版纳--到达城市
var return_jhg = new Array('KMG','LJG');

//单程--太原--到达城市
var oneway_tyn = new Array('PEK','CTU');
//往返--太原--到达城市
var return_tyn = new Array('PEK','CTU');

//单程--襄樊--到达城市
var oneway_xfn = new Array('PEK');
//往返--襄樊--到达城市
var return_xfn = new Array('PEK');

//单程--盐城--到达城市
var oneway_ynz = new Array('BAV','PEK','CGQ','LHW','SHA','PVG','SHE');
//往返--盐城--到达城市
var return_ynz = new Array('PEK');

//单程--宁波--到达城市
var oneway_ngb = new Array('PEK','BAV','CTU','HLD','HRB','LHW','KHN','SHE','URC','XIL','YNJ');
//往返--宁波--到达城市
var return_ngb = new Array('CTU','KHN','PEK');

//单程--南通--到达城市
var oneway_ntg = new Array('PEK','DLC','HET','HLD','HRB','INC','LHW','SHE','TYN','URC','XNN','YNJ');
//往返--南通--到达城市
var return_ntg = new Array('PEK');

//单程--格尔木--到达城市
var oneway_goq = new Array('XNN');
//往返--格尔木--到达城市
var return_goq = new Array('XNN');

//单程--海拉尔--到达城市
var oneway_hld = new Array('PEK','CTU','HRB','HGH','HET');
//往返--海拉尔--到达城市
var return_hld = new Array('PEK','CTU','HRB','HGH','HET');

//单程--包头--到达城市
var oneway_bav = itemcode=new Array('PEK','CAN','CGO','CGQ','CKG','CSX','CTU','CZX','DDG','DLC','FOC','HAK','HFE','HGH','HRB','INC','JGS','KHN','KMG','KWE','KWL','LHW','MIG','NGB','NKG','NNG','NTG','PVG','SHA','SHE','XIY','SWA','SYX','SZX','TAO','TXN','URC','WEH','WNZ','WUH','WUS','XFN','XMN','XNN','YCU','YIW','YNJ','YNT','ZUH');
//往返--包头--到达城市
var return_bav = itemcode=new Array('CAN','PEK','SHA');

//单程--锡林浩特--到达城市
var oneway_xil = new Array('PEK','CTU','HET');
//往返--锡林浩特--到达城市
var return_xil = new Array('PEK','HET');

//单程--攀枝花--到达城市
var oneway_pzi = new Array('PEK','CTU','CAN','CGO','CKG','CSX','FOC','HFE','HGH','JZH','KHN','KMG','LHW','LJG','SHA','PVG','SZX','TAO','TSN','WNZ','URC','XIC','XIY');
//往返--攀枝花--到达城市
var return_pzi = new Array('CTU');

//单程--西昌--到达城市
var oneway_xic = new Array('PEK','CTU','CAN','CGO','CKG','CSX','HAK','HFE','HGH','HRB','JZH','KHN','KMG','KWE','KWL','LHW','LJG','NKG','NNG','SHA','PVG','SZX','SHE','TAO','SYX','TNA','TSN','WNZ','URC','WUH','XIY','XMN');
//往返--西昌--到达城市
var return_xic = new Array('CTU');

//单程--运城--到达城市
var oneway_ycu = new Array('PEK','BAV','CGQ','DLC','CTU','CAN','HET','HRB','SHE','YNT','YNJ');
//往返--运城--到达城市
var return_ycu = new Array('CAN');


//单程--上海浦东--到达城市
var oneway_pvg = new Array('PEK','BAV','CTU','CKG','KWE','KMG','SZX','WNZ','WUH','XIY','YNT','YIH','HET','HLD');
//往返--上海浦东--到达城市
var return_pvg = new Array('PEK','CTU','CKG','KWE','KMG','SZX','WNZ','WUH','XIY','YNT','YIH');

//单程--大同--到达城市
var oneway_dat = new Array('PEK');
//往返--大同--到达城市
var return_dat = new Array('PEK');

//单程--达县--到达城市
var oneway_dax = new Array('CTU','CAN','PEK','DLC','FOC','HAK','HET','HRB','LJG','NNG','SHA','PVG','SHE','SZX','WEH');
//往返--达县--到达城市
var return_dax = new Array('CTU','CAN','PEK');

//单程--万县--到达城市
var oneway_wxn = new Array('CKG','CAN');
//往返--万县--到达城市
var return_wxn = new Array('CKG','CAN');

//单程--宜宾--到达城市
var oneway_ybp = new Array('CTU','CAN');
//往返--宜宾--到达城市
var return_ybp = new Array('CTU','CAN');

//单程--绵阳--到达城市
var oneway_mig = new Array('PEK','CAN');
//往返--绵阳--到达城市
var return_mig = new Array('PEK','CAN');

//单程--合肥--到达城市
var oneway_hfe = new Array('PEK','BAV','CGQ','CKG','CTU','DLC','HET','HRB','JZH','KMG','KWE','LHW','SHE','XIY','TYN','URC','XNN','YNJ');
//往返--合肥--到达城市
var return_hfe = new Array('PEK','CKG');

//单程--泸州--到达城市
var oneway_lzo = new Array('CTU','CAN');
//往返--泸州--到达城市
var return_lzo = new Array('CTU','CAN');

//单程--赤峰--到达城市
var oneway_cif = new Array('HET','CTU','SHA');
//往返--赤峰--到达城市
var return_cif = new Array('HET');

//单程--满洲里--到达城市
var oneway_nzh = new Array('HET');
//往返--满洲里--到达城市
var return_nzh = new Array('HET');

//单程--通辽--到达城市
var oneway_tgo = new Array('HET');
//往返--通辽--到达城市
var return_tgo = new Array('HET');

//单程--乌兰浩特--到达城市
var oneway_hlh = new Array('HET');
//往返--乌兰浩特--到达城市
var return_hlh = new Array('HET');

//单程--济南--到达城市
var oneway_tna = new Array('PEK','SHA');
//往返--济南--到达城市
var return_tna = new Array('PEK','SHA');
//单程(国际)--济南--到达城市
var oneway_tna_i = new Array('SEL');
//往返(国际)--济南--到达城市
var return_tna_i = new Array('SEL');

//单程--宜昌--到达城市
var oneway_yih = new Array('PEK','DLC','HRB','PVG','SHE','URC','YNJ','YNT');
//往返--宜昌--到达城市
var return_yih = new Array('PEK','PVG');

//单程--丹东--到达城市
var oneway_ddg = new Array('PEK');
//往返--丹东--到达城市
var return_ddg = new Array('PEK');

//单程--珠海--到达城市
var oneway_zuh = new Array('PEK','BAV','HET','HRB','SHE','TAO','YNT');
//往返--珠海--到达城市
var return_zuh = new Array('PEK');

//单程(国际)--延吉--到达城市
var oneway_ynj = new Array('PEK');
var return_ynj = new Array('PEK');
var oneway_ynj_i = new Array('SEL');
//往返(国际)--延吉--到达城市
var return_ynj_i = new Array('SEL');

//单程(国际)--香港--到达城市
var oneway_hkg_i = new Array('PEK','CTU','CKG','DLC','KWE','HGH','TSN','WUH');
//往返(国际)--香港--到达城市
var return_hkg_i = new Array('PEK','CTU','CKG','DLC','KWE','HGH','TSN','WUH');

//单程--常州--到达城市
var oneway_czx = new Array('PEK','BAV','CGQ','DLC','HET','HLD','HLD','INC','LHW','SHE','TYN','XNN','YNJ');
//往返--常州--到达城市
var return_czx = new Array('PEK');

//单程--常州--到达城市
var oneway_cgd = new Array('PEK');
//往返--常州--到达城市
var return_cgd = new Array('PEK');

//单程--鄂尔多斯--到达城市
var oneway_dsn = new Array('CAN','PEK','SHA');
//往返--鄂尔多斯--到达城市
var return_dsn = new Array('CAN','PEK','SHA');

//单程--晋江--到达城市
var oneway_jjn = new Array('PEK');
//往返--晋江--到达城市
var return_jjn = new Array('PEK');

//单程--齐齐哈尔--到达城市
var oneway_ndg = new Array('PEK');
//往返--齐齐哈尔--到达城市
var return_ndg = new Array('PEK');

//单程--佳木斯--到达城市
var oneway_jmu = new Array('PEK');
//往返--佳木斯--到达城市
var return_jmu = new Array('PEK');

//单程--义乌--到达城市
var oneway_yiw = new Array('PEK');
//往返--义乌--到达城市
var return_yiw = new Array('PEK');

//单程--无锡--到达城市
var oneway_wux = new Array('PEK');
//往返--无锡--到达城市
var return_wux = new Array('PEK');


//单程--北海--到达城市
var oneway_bhy = new Array('PEK');
//往返--北海--到达城市
var return_bhy = new Array('PEK');


//单程--芒市--到达城市
var oneway_lum = new Array('KMG');
//往返--芒市--到达城市
var return_lum = new Array('KMG');


//单程(国际)--曼谷--到达城市
var oneway_bkk_i = new Array('PEK','CTU');
//往返(国际)--曼谷--到达城市
var return_bkk_i = new Array('PEK','CTU');

//单程(国际)--德里--到达城市
var oneway_del_i = new Array('PEK');
//往返(国际)--德里--到达城市
var return_del_i = new Array('PEK');


//单程(国际)--福冈--到达城市
var oneway_fuk_i = new Array('PEK','CTU','DLC','SHA');
//往返(国际)--福冈--到达城市
var return_fuk_i = new Array('PEK','CTU','DLC','SHA');

//单程(国际)--广岛--到达城市
var oneway_hij_i = new Array('PEK','DLC');
//往返(国际)--广岛--到达城市
var return_hij_i = new Array('PEK','DLC');

//单程(国际)--胡志明市--到达城市
var oneway_sgn_i = new Array('PEK','NNG');
//往返(国际)--胡志明市--到达城市
var return_sgn_i = new Array('PEK','NNG');

//单程(国际)--雅加达--到达城市
var oneway_jkt_i = new Array('PEK','XMN');
//往返(国际)--雅加达--到达城市
var return_jkt_i = new Array('PEK','XMN');

//单程(国际)--吉隆坡--到达城市
var oneway_kul_i = new Array('PEK');
//往返(国际)--吉隆坡--到达城市
var return_kul_i = new Array('PEK');

//单程(国际)--洛杉矶--到达城市
var oneway_lax_i = new Array('PEK','SHA','SHE');
//往返(国际)--洛杉矶--到达城市
var return_lax_i = new Array('PEK','SHA','SHE');

//单程(国际)--名古屋--到达城市
var oneway_ngo_i = new Array('PEK','CKG','SHA');
//往返(国际)--名古屋--到达城市
var return_ngo_i = new Array('PEK','CKG','SHA');

//单程(国际)--纽约--到达城市
var oneway_nyc_i = new Array('PEK','SHA');
//往返(国际)--纽约--到达城市
var return_nyc_i = new Array('PEK','SHA');

//单程(国际)--大阪--到达城市
var oneway_osa_i = new Array('PEK','DLC','SHA','SZX');
//往返(国际)--大阪--到达城市
var return_osa_i = new Array('PEK','DLC','SHA','SZX');

//单程(国际)--釜山--到达城市
var oneway_pus_i = new Array('PEK','HGH');
//往返(国际)--釜山--到达城市
var return_pus_i = new Array('PEK','HGH');

//单程(国际)--旧金山--到达城市
var oneway_sfo_i = new Array('PEK','SHA','SHE');
//往返(国际)--旧金山--到达城市
var return_sfo_i = new Array('PEK','SHA','SHE');

//单程(国际)--仙台--到达城市
var oneway_sdj_i = new Array('PEK','DLC','SHA');
//往返(国际)--仙台--到达城市
var return_sdj_i = new Array('PEK','DLC','SHA');

//单程(国际)--首尔--到达城市
var oneway_sel_i = new Array('PEK','DLC','HGH','TNA','TSN','WEH','YNJ','YNT');
//往返(国际)--首尔--到达城市
var return_sel_i = new Array('PEK','DLC','HGH','TNA','TSN','WEH','YNJ','YNT');


//单程(国际)--新加坡--到达城市
var oneway_sin_i = new Array('PEK','CTU','XMN');
//往返(国际)--新加坡--到达城市
var return_sin_i = new Array('PEK','CTU','XMN');


//单程(国际)--札幌--到达城市
var oneway_spk_i = new Array('PEK');
//往返(国际)--札幌--到达城市
var return_spk_i = new Array('PEK');

//单程(国际)--大邱--到达城市
var oneway_tae_i = new Array('PEK','HGH');
//往返(国际)--大邱--到达城市
var return_tae_i = new Array('PEK','HGH');


//单程(国际)--东京--到达城市
var oneway_tyo_i = new Array('PEK','CTU','DLC','SHA','SZX');
//往返(国际)--东京--到达城市
var return_tyo_i = new Array('PEK','CTU','DLC','SHA','SZX');


//单程(国际)--乌兰巴托--到达城市
var oneway_uln_i = new Array('PEK');
//往返(国际)--乌兰巴托--到达城市
var return_uln_i = new Array('PEK');

//单程(国际)--加德满都--到达城市
var oneway_ktm_i = new Array('CTU');
//往返(国际)--加德满都--到达城市
var return_ktm_i = new Array('CTU');

//单程(国际)--温哥华--到达城市
var oneway_yvr_i = new Array('PEK');
//往返(国际)--温哥华--到达城市
var return_yvr_i = new Array('PEK');

//单程(国际)--台北--到达城市
var oneway_tpe_i = new Array('PEK','SHA');
//往返(国际)--台北--到达城市
var return_tpe_i = new Array('PEK','SHA');

//单程(国际)--blue--到达城市
var blue = new Array();
//往返(国际)--blue--到达城市
var return_blue_i = new Array();

//单程(国际)--罗马--到达城市
var oneway_rom_i = new Array('PEK','SHA');
//往返(国际)--罗马--到达城市
var return_rom_i = new Array('PEK','SHA');

//单程(国际)--米兰--到达城市
var oneway_mil_i = new Array('PEK','SHA');
//往返(国际)--米兰--到达城市
var return_mil_i = new Array('PEK','SHA');

//单程(国际)--马德里--到达城市
var oneway_mad_i = new Array('PEK','SHA');
//往返(国际)--马德里--到达城市
var return_mad_i = new Array('PEK','SHA');

//单程(国际)--巴黎--到达城市
var oneway_par_i = new Array('PEK','SHA');
//往返(国际)--巴黎--到达城市
var return_par_i = new Array('PEK','SHA');

//单程(国际)--伦敦--到达城市
var oneway_lon_i = new Array('PEK','SHA');
//往返(国际)--伦敦--到达城市
var return_lon_i = new Array('PEK','SHA');

//单程(国际)--法兰克福--到达城市
var oneway_fra_i = new Array('PEK','SHA');
//往返(国际)--法兰克福--到达城市
var return_fra_i = new Array('PEK','SHA');

//单程(国际)--慕尼黑--到达城市
var oneway_muc_i = new Array('PEK','SHA');
//往返(国际)--慕尼黑--到达城市
var return_muc_i = new Array('PEK','SHA');

//单程(国际)--莫斯科--到达城市
var oneway_mow_i = new Array('PEK','SHA');
//往返(国际)--莫斯科--到达城市
var return_mow_i = new Array('PEK','SHA');

//单程(国际)--斯德哥尔摩--到达城市
var oneway_sto_i = new Array('PEK','SHA');
//往返(国际)--斯德哥尔摩--到达城市
var return_sto_i = new Array('PEK','SHA');

//单程(国际)--墨尔本--到达城市
var oneway_mel_i = new Array('PEK','CAN','SHA');
//往返(国际)--墨尔本--到达城市
var return_mel_i = new Array('PEK','CAN','SHA');

//单程(国际)-- 悉尼--到达城市
var oneway_syd_i = new Array('PEK','CAN','SHA');
//往返(国际)--悉尼--到达城市
var return_syd_i = new Array('PEK','CAN','SHA');

/**单程，往返两种情况下不同出发城市对应的到达城市*/
function kindselect(type)
{
	var kind;
	if(type!=null){
		var kind = type.toLowerCase();	
	}
	else{
		kind = getAirkind();
	}
	if(document.form1.actionkind!=null){
		document.form1.actionkind.value=kind;
	}
	if(kind=="multiseg")kind="oneway";//对于多段，城市对同单程
	if(kind=="roundtrip")kind="airreturn";//对国际票往返做出的修正
	var cfcity = document.form1.org.options[document.form1.org.selectedIndex].value;
	switch (kind.toLowerCase()) 
	{
		case "oneway":
			ddchange(cfcity,0);
			try{
				setOnewayCond();//Add by liaoxu,隐藏显示
			}catch(e){}
			break;
		case "airreturn": 
			ddchange(cfcity,1);
			try{
				setReturnCond();
			}catch(e){}
			break;
		case "roundtrip": 
			ddchange(cfcity,1);
			try{
				setReturnCond();
			}catch(e){}
			break;
		default://默认选中单程 
			if(document.getElementById("oneway_airkind")!=null){
				document.getElementById("oneway_airkind").checked = true;
			}
			break;
	}	
}
/*只改变行程种类，不重置城市*/
function kindchange()
{
	document.form1.actionkind.value=getAirkind();
	switch (getAirkind()) {
		case "oneway":setOnewayCond();kindselect();break;
		case "airreturn":setReturnCond();kindselect();break;
		case "multiseg":setOnewayCond();kindselect();break;
		/*case "oneway":setOnewayCond();break;
		case "airreturn":setReturnCond();break;
		case "multiseg":setOnewayCond();break;*/
	}
}

//公用函数
function cleardst(){
	var len = document.form1.dst.options.length;
	for(var i = (len-1); i >= 0; i--) {
		if (document.form1.dst.options[i] != null) {
			document.form1.dst.options[i] = null;
		}
	}
}

function filldst(itemno,itemcode){
	var length = itemno.length;
	var option = document.form1.dst;
	for(var i=0;i<length;i++){
		if(international&&itemcode[i]=="SHA"){
			itemno[i] == "SHANGHAI";//国际票显示上海而不是上海虹桥
		}
		option.options[i]=new Option(itemno[i],itemcode[i]); 
    }
}

Array.prototype.clone = function(){
 	var tmp=new Array();
 	for(ob in this)tmp[ob]=this[ob];
 	return tmp;
}

//显示可到达城市
function ddchange(cfcity,isreturn){
	cleardst();
	var arrayname;
	var theone= -1;
	var tmpitemno;
	var tmpitemcode;
	if(international){//国际票
		if(domesticcitycodestr.indexOf(cfcity.toUpperCase())>=0){
			arrayname = "internationalcitycode";
		}
		else if(isreturn == 1){
			arrayname = "return_"+cfcity.toLowerCase()+"_i";
		}
		else{
			arrayname = "oneway_"+cfcity.toLowerCase()+"_i";
		}
	}
	else{
		arrayname = "domesticcitycode";	
	}
	try{
		if(cfcity.toLowerCase()=="tpe"){alert(alerttpestr);}
		itemcode = eval(arrayname);
		var length = itemcode.length;
		var itemno = new Array();
		for(var i=0;i<length;i++){
			if(itemcode[i]==cfcity){
				theone = i;
			}
			itemno[i] = citycode[itemcode[i]];
		}
		if(theone!=-1){
			//alert(itemno);
			tmpitemno = itemno.clone();
			tmpitemcode = itemcode.clone();
			//alert(tmpitemno);
			tmpitemno.splice(theone,1);
			tmpitemcode.splice(theone,1);
			filldst(tmpitemno,tmpitemcode);
		}
		else{
			filldst(itemno,itemcode);
		}
	}
	catch(e){
		filldst(new Array(),null);
		return;
	}
}

//单程--北京--到达城市
function ddchange_oneway(){
	itemno=new Array(
    'Baotou','Changzhou','Changchun','Changsha','Chengdu','Chongqing','Dalian','Datong','Dazhou','Fuzhou','Guangzhou','Guilin','Guiyang','Haerbin','Haikou','Hailaer','Hangzhou','Hefei','Huhehaote','Huangshan','Jinggangshan','Kunming','Lasa','Lanzhou','Mianyang','Nanchang','Nanjing','Nanning','Nantong','Ningbo','Qinhuangdao','Qingdao','Sanya','Shantou','Shanghaihongqiao','Shanghaipudong','Shenzhen','Shenyang','Taiyuan','Weihai','Wenzhou','Wulumuqi','Wuhan','Wuyishan','Xi an','Xining','Xilinhaote','Xiamen','Xiangfan','Yancheng','Yantai','Yanji','Yinchuan','Zhangjiajie','Zhengzhou','Zhuhai');
    itemcode=new Array(
    'BAV','CZX','CGQ','CSX','CTU','CKG','DLC','DAT','DAX','FOC','CAN','KWL','KWE','HRB','HAK','HLD','HGH','HFE','HET','TXN','JGS','KMG','LHW','MIG','KHN','NKG','NNG','NTG','NGB','SHP','TAO','SYX','SWA','SHA','PVG','SZX','SHE','TYN','WEH','WNZ','URC','WUH','WUS','XIY','XNN','XIL','XMN','XFN','YNZ','YNT','YNJ','INC','DYG','CGO','ZUH');
	filldst(itemno,itemcode);
}

function getAirkind(){
	var kind = "";
	var airkind = document.getElementsByName("airkind");
	for (var i=0;i<airkind.length;i++){
		if(airkind[i].checked){
			kind = airkind[i].value;
			break;
		}	
	}
	return kind;
}

/**国际票使用：单程，往返两种情况下时间显示控件*/
function dateDisplay()
{
	switch (getAirkind()) 
	{
		case "oneway": 
			document.form1.actionkind.value="oneway";//赋值给将传递到下一个页面的参数"actionkind"
			//隐藏往返情况下的返城日期
			document.form1.sectime.value = "";
			document.getElementById("backdate_checkbox").style.display = 'none';
			break;
		case "airreturn": 
			document.form1.actionkind.value="airreturn";//赋值给将传递到下一个页面的参数"actionkind"
			document.form1.sectime.value = "返程日期:";
			document.getElementById("backdate_checkbox").style.display = 'block';
			break;
		default:
			document.getElementsById("oneway_airkind").checked = true;
			document.form1.dstcity.value = "To:";
			document.form1.fsttime.value = "Departing";
			document.form1.sectime.value = "";
			document.form1.back_year.disabled = false;
			document.form1.back_month.disabled = false;
			document.form1.back_date.disabled= false ;
			break;
	}
	
}

//起飞城市
function cfcityDisplay(formname)
{
	var operationform=document.form1;
	if(arguments.length==1){
		operationform=formname;
	}
	
	//清空列表
	var len = operationform.org.options.length;
	for(var i = len-1; i >= 0; i--) {
		operationform.org.options[i] = null;
	}
	
	if(!international){//国内起飞城市
		//itemcode=new Array('PEK','BAV','BHY','CGQ','CSX','CGD','CTU','CIF','CKG','DLC','DDG','DAT','DAX','DSN','FOC','CAN','KWL','KWE','GOQ','HRB','HAK','HLD','HGH','HFE','HET','TXN','TNA','JJN','JMU','JZH','KMG','LHW','LUM','LXA','LZO','LZY','NZH','MIG','KHN','NDG','NKG','NNG','NTG','NGB','PZI','TAO','SYX','SWA','SHA','PVG','SZX','SHE','TYN','TSN','TGO','WXN','WEH','WNZ','URC','HLH','WUH','WUS','WUX','XFN','XIY','XIC','XNN','XIL','XMN','XUZ','JHG','YNT','YNZ','INC','YBP','YIH','YIW','YCU','YNJ','DYG','CGO','ZUH');
		itemcode = domesticcitycode;
	}
    else {//国际起飞城市
		//itemcode=new Array('PEK','CTU','CKG','DLC','KWE','HGH','TNA','KMG','LXA','NNG','TAO','SHA','SHE','SZX','TSN','WEH','WUH','XMN','YNJ','YNT','blue','HKG','BKK','DEL','FUK','HIJ','JKT','KUL','KTM','LAX','OSA','NGO','NYC','PUS','SDJ','SEL','SFO','SGN','SIN','SPK','TAE','TYO','TPE','ULN','YVR');
		itemcode = domesticcitycode.concat(new Array('blue','HKG','BKK','DEL','FUK','HIJ','JKT','KUL','KTM','LAX','OSA','NGO','NYC','PUS','SDJ','SEL','SFO','SGN','SIN','SPK','TAE','TYO','TPE','ULN','YVR','ROM','MIL','MAD','MEL','PAR','LON','FRA','MUC','MOW','STO','SYD'));
	}
	for(var i=0;i<itemcode.length;i++){
		if (itemcode[i]=='SHA'&&international){
			//operationform.org.options[operationform.org.length]=new Option('Shanghai','SHA');
			continue;
		}
		if (itemcode[i]=='blue'&&international){
			var blueline_option = new Option(citycode[itemcode[i]],itemcode[i]);
			blueline_option.style.color ="blue";
			operationform.org.options[operationform.org.length]=blueline_option;
			continue;
		}
		operationform.org.options[operationform.org.length]=new Option(citycode[itemcode[i]],itemcode[i]); 
	}
    setdv(operationform.org,"PEK");
}

function detectdstcity(formname){
	var operationform=document.form1;
	if(arguments.length==1){
		operationform=formname;
	}
	if(operationform.dst.value == "TPE"){
		alert(alerttpestr);
	}
}