How to Macro, by Vattel

[Erethas]

Does anyone know a macro (or most probably an add-on), that lets me copy spells from one spec to the other?

Let me explain. You get to level 30, and hurrah! you get a second spec. You activate it, and you find that you have to fill all your bars from scratch again. Is there a way to automatically copy all the spells from the other spec and then make adjustments, or do I have to write it myself?