RELATED PARTY TRANSACTIONS (Amounts Due from Related Parties) (Details) (CNY)
Dec. 31, 2013
Dec. 31, 2012
Related Party Transaction [Line Items]    
Amounts due from related parties 66,143,414 23,638,777
Egencia Shanghai (refer to a2) [Member]
   
Related Party Transaction [Line Items]    
Amounts due from related parties 18,983,877 5,215,706
EAN (refer to a4) [Member]
   
Related Party Transaction [Line Items]    
Amounts due from related parties 6,913,654 4,040,987
Expedia (refer to a5) [Member]
   
Related Party Transaction [Line Items]    
Amounts due from related parties 97,319 236,001
Kuxun (refer to b4) [Member]
   
Related Party Transaction [Line Items]    
Amounts due from related parties    185,375
Tencent (refer to c1) [Member]
   
Related Party Transaction [Line Items]    
Amounts due from related parties 20,327,198 8,024,273
Tencent (refer to c2) [Member]
   
Related Party Transaction [Line Items]    
Amounts due from related parties 5,000,000 5,000,000
Tencent (refer to c3) [Member]
   
Related Party Transaction [Line Items]    
Amounts due from related parties 300,000 300,000
Expedia (refer to d2) [Member]
   
Related Party Transaction [Line Items]    
Amounts due from related parties 865,678 374,575
Jiuyou (refer to e) [Member]
   
Related Party Transaction [Line Items]    
Amounts due from related parties 13,547,426   
2012 Second Affiliate Company (refer to g) [Member]
   
Related Party Transaction [Line Items]    
Amounts due from related parties 100,000   
Other [Member]
   
Related Party Transaction [Line Items]    
Amounts due from related parties 8,262 261,860