EX-99.1 2 y29783exv99w1.htm EX-99.1: JOINT FILING AGREEMENT EX-99.1
 

Exhibit 99.1
JOINT FILING AGREEMENT
The undersigned hereby agree that the foregoing statement on Schedule 13G is filed on behalf of each of the undersigned in accordance with the provisions of Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended, and that all subsequent amendments to this statement on Schedule 13G may be filed on behalf of each of the undersigned without the necessity of filing additional joint filing agreements.
Dated: January 31, 2007
S.A.C. CAPITAL ADVISORS, LLC
         
 
        
By:
   /s/  Peter Nussbaum    
Name:
 
 
Peter Nussbaum 		   
Title:   Authorized Person    
S.A.C. CAPITAL MANAGEMENT, LLC
         
 
        
By:
   /s/  Peter Nussbaum    
Name:
 
 
Peter Nussbaum 		   
Title:   Authorized Person    
S.A.C. CAPITAL ASSOCIATES, LLC
         
 
        
By:
   /s/  Peter Nussbaum    
Name:
 
 
Peter Nussbaum 		   
Title:   Authorized Person    
CR INTRINSIC INVESTORS, LLC
         
 
        
By:
   /s/  Peter Nussbaum    
Name:
 
 
Peter Nussbaum 		   
Title:   Authorized Person    
SIGMA CAPITAL MANAGEMENT, LLC
         
 
        
By:
   /s/  Peter Nussbaum    
Name:
 
 
Peter Nussbaum 		   
Title:   Authorized Person    

 

 

STEVEN A. COHEN
         
 
        
By:
   /s/  Peter Nussbaum    
Name:
 
 
Peter Nussbaum 		   
Title:   Authorized Person