bug : switch tab but comment owner photo is still there.

i click discuss tab, then show all comments. Then i click description tab, all comments are hidden but owner photo didnt hide. Please fix the bug. I think just apply css display:none on #comment when discuss tab is inactive. Where to put the code? Screenshot : https://3.bp.blogspot.com/-0ybvYerWCaU/WqZ9b-HR_gI/AAAAAAAAGkw/XXYnJsyEK6gIucV1BFm_9V-ypZp27KoCQCLcBGAs/s1600/dss.jpg