I don't know what this is called so I've put a picture to help explain

What I need is to make an iframe to embed. In it, there'll be more than three streams and those play in same iframe. When I choose stream 1, it'll play, and if I choose stream 2, it'll play at the same frame instead of stream one so play at same iframe as same page. I want to put it in my blogspot, or if you do not want to create a code for me, just tell me how i can search and will do