Dragable iFRAME LOADS URL INTO IT

I was wondering if there any examples out there that create a Draggable ifram
that display another URL in it. In this iFRAME before loading the URL it
will display a progress bar once the url has loaded the progress bar will
disappear.

Thanks to everyone that helps.

There are progress bar premade stuff out there, yes, I don't know any offhand,
but there are some, check in google.

Danny