Help with pop-up window

Greybox, the pop-up window: [url]http://orangoo.com/labs/GreyBox/[/url]

I’d just like to know how I can get it to pop-up not in the center of the page.
I’d like it to pop-up on the left side of the page.
Is that possible? If so can you help me accomplish this? I looked at the CSS and I, and others, tried to modify without success. it may need some added code. Any help will be appreciated. Thanks.

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