Hi,

You can do this using fancybox very easily. Check the post below-

http://forums.asp.net/p/1758046/4776901.aspx/1?Re+light+box+javascript

In the post the popup is done using an inline div. You can use iFrame for this purpose.

You can find the detail of fancybox in the following link. Check the use of iframe there-

http://fancybox.net/#various5