Is there a list of "commands"?

Where is there a reference of commands?
I stumble onto commands like window.open(), onLoad, all the mouse stuff, etc.
My understand that these are called commands.
I am particularly interested in delaying an image or text from appearing until the page is fully loaded.

I just realized that some of the things I listed are "events" and some are "commands".
I would like a reference for both of these.
Thanks.

Go to NS DevEdge Online.

http://developer.netscape.com/docs/manuals/index.html?content=javascript.html

Spookster

Thanks, I appreciate your quick response.
I've only been fooling with this stuff for a few months. It seems like one question opens another.