Digital Workshop

Hi all.
Complete JavaScript newbie here never done any scripting before.
Trying to add a Websocket function to a HTML5. Added a button with left click action and added the javascript:

ws = new WebSocket("ws://localhost:7890")
packet = new Uint8Array([ 0,0,0,0, 255,0,0, 0,255,0, 0,0,255 ]);
ws.send(packet.buffer)
ws.send(packet.buffer)

It's supposed to send RGB led data to the server running on my machine, but needless to say press the button and nothing happens.
I know I'm missing something (probably a lot!) and could do with a few pointers.
Thanks

Are you running the HTML via your webserver? I.e. not using file://

The generated Html5 page is running locally (in chrome) on the same machine the websocket server is running. Server part tested and working fine.

I don't know what you mean by that. You need to be running your webpage from the server as in http://localhost/whatever.htm - the same server you're connecting to with websockets. If you're running it as a local file (which is what the Opus test will do), then websockets won't work.