Your plugin is very simple and works great. However, the only way to dismiss the popup is by clicking off of it, AND this does not work on mobile devices like the iphone. There is no way to dismiss it on a mobile device, unless I provide a link to my home page embedded in the text of the popup. And it might be confusing for some users that don't know to click off the window on regular desktop browsers.
How can I add an close button to the top right corner? Just a small "X" box would suffice.