Do dogs go to heaven?

Today was a sad day for our family. We had to put our pet Rottweiler named Angel to sleep this morning. She hasn't been herself lately and hasn't been eating well. Broc took her to the vet this morning and found out that she had a tumor in her mouth and there was nothing that could be done for her. Angel has been a part of our family since 9-11-01. We got her when she was just 6 months old. She was our house dog for awhile when we first moved into our house. Then she became an outside dog during the summer and a inside the porch dog during the winter and at night. She will be missed for her friendly nature. The kids loved playing with Angel and were never scared of her. We have told the kids that Angel was sick and that daddy took her to the animal doctor and that because she was very sick, now she is in heaven with Jesus. They don't question that - they just occasionally ask "Where's Angel - in heaven with Jesus?" Broc being the great guy he is took it upon himself to dig a hole in the yard and bury her.