Button Help

I need to create 2 buttons { (PREV) - (NEXT) } for the texts that I have on my Flash web page so every time I click on the NEXT or PREV button the text will fade out and then fade in the text as the result of the effect but when I want to add or make changes of the texts it has to be in the layer or on the document. I do not want to edit the texts on the action script panel.

Thanks