Description:
To get a popup window to close it is common to add an image link that will allow
the user to "Close Window".
Directions:
Below you will find the code required to create a "Close
Window Image". You can use whatever image you would like.
Use the 'Grab Text' buttons to select the code within the
adjacent textarea. Then use Control-C or Edit -> Copy to
buffer the text for pasting into your document.