Loading a video component from anywhere in my site

Hello.
I have a site for my short movies that has a video component that is constant throughout the site. No matter what page you are on, the video player is there playing video.
What I want to do is have a video play right when the player opens, which I know how to do, and also have videos load into the same player from any spot in the site. This could be buttons or text links. The problem is that all other pages are inside of symbols. Can you help me with how to load this player from inside of other symbols?
Thanks a ton!

If your video component is on the main timeline you would point to it using _parent.instancename then the rest of the code. _parent and _root point to the main timeline, though I have learned that generally _parent is better practice than _root. You then say what you want to point to that is on that timeline, so if your video is called myvideo, then you would say _parent.myvideo.play(); or whatever it is that you want it to do. So if you were to put this on a button that is inside a symbol on the main timeline, it would look like this

on(Release){
_parent.myvideo.play();
}

Hope this helps.