And now we'll use some javascript to create a button to call some URL, in this case Google.
And in this case, it'll open in a new window.

And now for some javascript to open a pop up window. This window will
display CNN. To open this window just click here.

You probably noticed a few pop ups. Don't worry, nothing happened. I was just testing out the alerts capabilities.

I was also testing the confirmation window capabilities.

And finally I was testing the Prompt field capabilities. All in all, I was just having fun with some simple javascript commands...