Is there a project to generate a widget like uservoice?

I want to build a widget like uservoice that it lays on the left side or ri开发者_JS百科ght side of the page. And when user click the widget, a dialog will popup and user can do anything we provide.

Is there an exist open source project to implement this widget?

Do you mean the feedback button that hovers on the edge of the page?

I don't know of an open source project, but its not very hard to implement this your self. A quick google search found several tutorials. Here's a good one:

http://mediaformations.com/creating-a-simple-feedback-button/

A widget is nothing, but some HTML code or JavaScript code that loads some HTML code. A simple solution will be iFrames that gets content from another URL.