What website will tell me how to get to Garfield Park, IL by Cta from the Flossmoor Station Metra?

I live in Flossmoor and I need to find a way to get to Garfield park for a summer job. Now I know there is a website that will tell me how to get there by getting off at any metra stop and then walking to a cta line because I've used it before, I just cannot remember what website it is. Help me? Please ..