My question involves criminal records for the state of: VIRGINIA

hello, i was arrested 3 years ago for public intoxication, spend the night(5hours) in jail. when i went to court my case was dismissed. I was wondering if i can get it expunged from my record? if i do, will the arrest(spend the night in jail) be expunged too? or do i have to get 2 expungements*? also i checked my name on inteligatorcom.com criminalpages.com-- (my name show up, and you are able to buy full access for a few bucks)-- if i get expunged will it disappear/not be visible online for the public?? location: virginia

oh, thats the only thing on my record(i dont even have speeding tickets),.
thank you for your help.. any other options/tips are welcome..