i've got a site abc.com i integrate user registration this site with my wordpress blog when user register during my abc.com younger crowd registered during my wordpress blog that path is abc.com/news. my website customers give there username and password in blog login area they are succefuuly login . now i've problem that my requirment is if some user effectively login in abc.com as he go abc.com/news he should auto login. it is going to be use cookie as well as other function . any suggetion or source how do i do that ?