Switching directories

Quick question, and sorry in advanced if it is a dumb/easy question. I currently have my wordpress installation on “www.mh-grafix.com/wordpress” directory on my site, which points to my domain “www.mh-grafix.com” I just switched build a new site (just a new theme with a few modifications) on http://www.mh-grafix.com/website. I now want to go live with the “website” directory and have it setup on the http://www.mh-grafix.com domain like I currently have. What do I all need to change for this process to happen. Any details would be greatly appreciated. Thank you in advance.