Huanglong Trip

Hi..
Would you please help for giving information about :
1. If the route from chengdu to huanglong were affected by the recent earthquake at Jiuzhaigou? So, is Huanglong still open ?
2. How much time will be need for exploring the scenic area (round way by cable car)
3. For going to Hailougou, is there any public buses from Huanglong ?
Thankyou