Passing variable from HTML (or PHP) to Flash from in an onClick event?

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Hi, I was wondering, say I had a Flash movie on one side of a page, and a list of links on the other side, say the links were like “image1”, “image2”, “image3”, etc, is there a way that I can pass a variable into the Flash movie on the onClick event, with like “image1” as the passed variable, so that I can dynamically load image1 when it’s clicked, and the same for the other images? Basically I wanna do this so I can have the images completely dynamically loaded in the Flash file, so that I just have to update the HTML if something new gets added, as opposed to having to update the whole SWF file, any help?