'Close' button rather than [i]javascript:window.close()[/i]

[kiwibrit]

Should javascript:window.close() show at the bottom left hand corner of the larger image window? 
I would rather have nothing or a close button - and wonder if it should be there, or whether I have corrupted a file .

[kiwibrit]

Actually, looking at this further, I can see what is happening - with the tool tip coming up with the mouse hovering over the larger picture.  When I get a roundtuit, I might play with the javascript to get a close button - some like it.  If that's already been done, I'd appreciate a link to the reference.  Otherwise, not to worry.