Create add-in toolbar for Firefox, IE, and Safari

Create a toolbar for IE, Firefox, and Safari that will let users submit the web page they are currently looking at to my web site. This is similar to the Digg toolbar. As the user is browsing, they should be able to click a button on the toolbar, that button will open a new window containing a form. I will develop all of the backend logic, you are responsible for only the toolbar. The toolbar code must be handed over to me at the end of the project. If you only know how to develop toolbars for Firefox, just bid on that part of the project. Please send me samples of previous toolbars that you've developed.