The AP reports: The Atlanta Hawks were fortunate that they were at home and the opponent was the struggling Charlotte Bobcats. Joe Johnson scored 18 of his 28 points in the second half to lead the Hawks to an 83-79 victory over Charlotte on Monday night, extending the Bobcats’ losing streak to seven. Al Horford added 12 points and 14 rebounds for Atlanta (15-9), which won its third straight and improved to 9-1 at home with six straight games at Philips Arena coming up… Boris Diaw led Charlotte (7-18) with a season-high 25 points. Raymond Felton added 15… Johnson led the Hawks’ 15-3 run that gave Atlanta a 74-68 lead with 7:45 left, scoring seven points.