Improve my video chat with javascript

I have a simple video chat using the Twilio Video API, i need some improvements: You can test it opening [login to view URL] and [login to view URL] simultaneously (dont use the same computer/cellphone) at Google Chrome (android or windows) API DOCS - [login to view URL] ####################### File 1 - [login to view URL] 1. Change the text "waiting for client" to a big text using +- 70% of windows width 2. If the [login to view URL] disconect, go back to "waiting for client" message 3. Fix the video height 100% (remove the vertical scrolbar) 4. Create a hidden textbox with room ID = "1" (i will have many hosts, and i will modify this textbox with "2" ... "3".) ####################### File 2 - [login to view URL] 1. Check if the room ID = "1" is waiting conection, if yes show a button "Start" to initiate the videochat, if [login to view URL] is offline, show a message "Waiting Host" and refresh every 5 seconds to check if the host connected 2. If the host is online and running a videochat with someone, show the button "Start" and a message "Someone is currently connected" 3. If the host goes offline during a videochat, disable the videochat and show a message "host disconnected" and refresh every 5 seconds to check if the host connected #### At [login to view URL] and [login to view URL] - Show a small windows with user webcam (like skype do) ###############