receiving signal: EXC_BAD_ACCESS in my web service call function
===

i am new to iphone.now iam using xcode 4.2.i am getting program received signal: EXC_BAD_ACCESS in my web service call function.



         NSString *val=[WebviewObj stringByEvaluatingJavaScriptFromString:@"save()"];
        NSLog(@"return value:: %@",val);
        [adict setObject:[NSString stringWithFormat:@"%i",userid5] forKey:@"iUser_Id" ];
        [adict setObject:[[val componentsSeparatedByString:@","]objectAtIndex:0] forKey:@"vImage_Url"];
        [adict setObject:[[val componentsSeparatedByString:@","]objectAtIndex:1] forKey:@"IGenre_Id"];
        [adict setObject:[[val componentsSeparatedByString:@","]objectAtIndex:2] forKey:@"vTrack_Name"];
        [adict setObject:[[val componentsSeparatedByString:@","]objectAtIndex:3] forKey:@"vAlbum_Name"];
        [adict setObject:[[val componentsSeparatedByString:@","]objectAtIndex:4] forKey:@"vMusic_Url"];
        [adict setObject:[[val componentsSeparatedByString:@","]objectAtIndex:5] forKey:@"iTrack_Duration_min"];
        [adict setObject:[[val componentsSeparatedByString:@","]objectAtIndex:6] forKey:@"iTrack_Duration_sec"];
        [adict setObject:[[val componentsSeparatedByString:@","]objectAtIndex:7] forKey:@"vDescription"];
        NSLog(@"dict==%@",[adict description]);
     
      NSString *URL2= @"http://184.164.156.55/Music/Track.asmx/AddTrack";
      obj=[[UrlController alloc]init];
      obj.URL=URL2;
      obj.InputParameters = adict;
      [obj WebserviceCall];
     obj.delegate= self;


         -(void)WebserviceCall{
    
    
    webData = [[NSMutableData alloc] init];
	
	NSMutableURLRequest *urlRequest = [[ NSMutableURLRequest alloc ] initWithURL: [ NSURL URLWithString: URL ] ];
	
	NSString *httpBody = @"";
         for(id key in InputParameters)
   {
            if([httpBody length] == 0){
            httpBody=[httpBody stringByAppendingFormat:@"&%@=%@",key,[InputParameters valueForKey:key]];
        }
            else{
            httpBody=[httpBody stringByAppendingFormat:@"&%@=%@",key,[InputParameters valueForKey:key]];
        }
   }
	     httpBody = [httpBody stringByAppendingFormat:httpBody];//Here i am getting  EXC_BAD_ACCESS 
    
         [urlRequest setHTTPMethod: @"POST" ];
	 [urlRequest setHTTPBody:[httpBody dataUsingEncoding:NSUTF8StringEncoding]];
	 [urlRequest setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"content-type"];
	
	
          NSURLConnection *theConnection = [[NSURLConnection alloc] initWithRequest:urlRequest delegate:self];
	

    
	}


can any one help me plz...
thanks in advance

     
