I need a fade-in or blendtrans effect on a window, please

*waves hand* hello from a newbie!:-)
I’m making my personal website, it has an index window with a link that opens a chromeless popup window (found here [url]http://www.dynamicdrive.com/dynamicindex8/chromeless.htm[/url])
I’d like to add a fade-in or blendtrans effect to the background image in the popup window, so that it will start all black (it has a black background with a css) and gradually the image will appear, on load (that is without “click here to see the image”, but as soon as the windows opens).
Who can write such a script for me please? Or where can I find it? Please don’t laugh, I’m a javascript newbie, currently I take scripts from dynamicdrive or other sites, try to see what’s inside, try and learn the names, attributes and stuff. I’m just at the beninning, but I’m happy about what I’m learning!?
Thank you so much!

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