rewrite get variables in url

I'm working on a website and now i want to edit the htaccess file to change a url with get variable. But i look on the internet for information without any success.

http://ift.tt/1F96Ggv{massageName}

this is the link and i want it to look like this

http://ift.tt/1HJjO2I{massageName}

Can someone help me with that??

Martijn