DAYTON - Josh Joyner capped a three-year varsity career at Dayton High School by signing a national letter-of-intent to attend Division II Western Oregon University Wednesday afternoon.The 6-foot-3 275-pound two-way lineman didn't have much time to celebrate because he had to rush off to basketball practice.Joyner estimated that he talked to nearly a dozen DIII and NAIA schools before choosing to go with Western Oregon, which is located in Monmouth."They were the most serious about me; the most excited," Joyner said. "When I went on my college tour of schools over the summer, I really liked the school and they …