Lab goes crazy when someone comes to the house

[happyhounds]

Our 5 year old lab goes completely nuts when someone comes up the drive way. She barks and when I try to open the door she is frantic to get out, pulling, jumping, pushing her way through the door. If I try to pull her back she either pushes me out of the way ( she is over 85lbs) or gets loose from her collar and she will run toward who ever is there, barking with her fur up, then pick up a stick for them to play with her. She is very friendly and I don't think she would hurt anyone, besides giving them a heart attack when she charges them.
She is a great friend and mentor to our young lab but I certainly don't want the baby to pick up her terrible habit. I really don't know who to cure her of this unacceptable behavior and any advice is appreciated