problem restoring online backup to local installation

hi,

i wanted to make a copy of my online site to my local wordpress installation. so i created a back up using wordpress database backup, and restored it on my online installation.
the thing is, now when i go to the wp-admin on my local installation, it directs me to the adress of my onlibe site… which i guess makes sense, since i restored it from my online site.
but how can i change this, and have my local site directing to my local adress?