DENVER— The Blackhawks were stumbling two weeks ago. Six straight wins later they’re confident and on the verge of having home-ice advantage throughout the playoffs.Colin Fraser scored twice, Jonathan Toews had a goal and an assist and the Hawks moved closer to clinching first place in the Western Conference with a 5-2 win over the Colorado Avalanche on Friday.Antti Niemi had 30 saves, Patrick Sharp and Kris Versteeg also scored and Tomas Kopecky had two assists for the Blackhawks who moved into a tie with San Jose for first in the Western Conference with 111 points and both teams have one game remaining.Thw Hawks can clinch the No. 1 seed with a win Sunday against Detroit or by tying the Sharks in points. The Blackhawks hold the tiebreaker by having more wins than San Jose. The Sharks host Phoenix on Saturday.A win by the Coyotes in regulation would make Sunday’s game meaningless for the Blackhawks, but they’re not worried about the Sharks’ outcome because they control their fate.The Blackhawks are peaking after dropping three straight at the end of March. Since then they’ve won six in a row, four of them coming on the road.If the Blackhawks hold on to the top seed, Friday’s game was a preview of their first-round opponent. The Avalanche are locked into the eighth and final playoff spot, a big improvement from last year when they finished in the conference cellar.Although Chicago won the season series 3-1, the four games between the teams have been close. The first three games went to a shootout, with Colorado winning one at home and the Blackhawks both games at the United Center.Thw Hawks made sure the final game between the clubs didn’t reach a shootout with an early flurry of goals. Fraser scored 6:20 into the game when he took a rebound off the back boards and beat Peter Budaj to make it 1-0.Toews made it 2-0 4:35 later when he scored on the power play, his 25th goal of the season. It was the Hawks first power-play goal since March 25, a span of seven games.Sharp made it 3-0 with his 25th goal 7:21 into the second period before the Avalanche struck. Ryan O’Reilly was stopped on a point-blank shot on the power play before Ryan Stoa got Colorado on the scoreboard with his first NHL goal with 2:24 left in the second and the teams skating 4-on-4.Tucker made it 3-2 with 7:11 left, but Fraser scored his sixth goal of the season and second of the game 38 seconds later to make it a two-goal game. Versteeg scored an empty-net goal with 1:21 left to seal the win.The Avalanche could be limping into the playoffs after losing rookie Matt Duchene to a torso injury in the first period and he didn’t return.