Below is the Google Maps Street View for Frederick MD. Use the camera rotation slider to pan the camera left and right. After rotating the image a bit, click the button to add a message to it. There's a couple different messages that appear randomly on each click.
To keep things simple, I'm using an HTML5 slider control, rather than a jQuery slider. It should work in modern verions of Chrome, Safari and Opera. IE and Firefox users can type a number between 1 and 360 and then tab out to change camera rotation. One final caveat: this is sample code; for brevity some error handling, magic-number hiding, etc has been left out.