is there a way to customize url alias by content type? I have several contentypes, url alias are working fine, by default if there is a space in node title (or another token) is replaced with a dash "-", is it posible to change that beheavior by contentype and only on this special contentype replace spaces with nothing? example: my special contentype node title is= "word1 word2", this is replaced by "word1-word2", and i need to be "word1word2".

EDIT: i have allready pathauto module installed and working, path aliases are working fine, i need to change de default separator settings from a dash to "nothing" in one contentype only. Both answers bellow do not help me.
Yes. You can use the pathauto module.

http://dgo.to/pathauto