1999 Pontiac Sunfire starting problem

I have a 1999 Pontiac Sunfire with about 118K miles on it. It has been sitting for about a year. It was driven from one address to another , about 3 miles about 4 months ago. Recently we have wanted to use it, so a new battery was purchased. It was inspected and registered. For the large portion of the day it was used. It was then left to sit for about 2 weeks. When we went to start it , there was no juice..nothing..no dash lights, headlights anything. We jumped it and let it idle. We moved the jump vehicle and turned the trouble car off. We turned the ingition back on, and no juice...nothing...back to what it was....any ideas?....cleaned connections, new battery...any help would be appreciated