Getting error in code

[Saama5]

CREATE procedure xyz
@a int,
@b int out,
@c int out,
as
Declare @dbName nvarchar(35)
Declare @SqlStmt nvarchar(255)
Declare @RecNum int
SELECT DatabaseName,RecordNumber FROM Db1.dbo.Table1

DECLARE Cursor_1 CURSOR FOR


OPEN Cursor_1

FETCH NEXT FROM Cursor_1 into @dbName, @RecNum

WHILE @@FETCH_STATUS = 0
BEGIN
set @b = RecNum

select @c = fld1 from @dbName.dbo.Phone where fld2 = @a

if @c <> -1 break
FETCH NEXT FROM Cursor_1 into @dbName, @RecNum
ENd
CLOSE Cursor_1
DEALLOCATE Cursor_1
GO

How to write Select @c= fld1 .... statement. I am facing problem there because databaseName is dynamic