'import class' statement not working inside a function

Hi, I have a function declaration. In that function I add .NET library. When I try to use import, Matlab gives error 'function writem() not found'. On debugging I find that the debugger does not go to that line statement 'import..' but bypasses it leading to ther error. Any ideas why?

However, once I remove function definition and run it as a script everything works. Or else if I write 'something_hello.writem()', it works- obviously.

I am running R2009a.

Thanks

Here is the code

 function something()
 try
    NET.addAssembly('something_hello.dll');
 catch e
    e.message
    if(isa(e, 'NET.NetException'))
        e.ExceptionObject
    end
 end
 import something_hello.*;

 dev=writem();