Text RollOvers?

Okay here is what i have:

I have a dynamic text box inside of a movie clip that is set to display whatever header the company new press release is. This will be loaded using a flash based CMS but for now to show the client i am using text. Here is the code i have to display the text.


onClipEvent (load) {
	header = "Charting Your Financial Future";
}

Header is the var name on the text box inside the MC with the instance name of headerMC.

now next to the text box, outside of the movie clip is a button that when you rollover it the text should change to “Read More” and then when you roll out it should change back.

This is where i am having trouble coding. I don’t know where to start. I have been able to get the text to switch using some AS but when i rollOut the text doesn’t change back.

www.versusmediagroup.com/soi

this is the link and the page i am talking about is “Information & News”

If someone can help me i would be greatful.