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Advertising on this website is inserted by Yahoo.   This funds the free webpage hosting provided by Yahoo GeoCities.   The content of the ads and of the webpages they link to is beyond my control.   I do not endorse any of the material or products presented therein, and I discourage you from clicking on the ads.   If you do, please exercise due care and responsibility when following any of the links that this may lead to.   Your response to any ad is entirely at your own risk.   After about 20 seconds, you can close down the ad panel by clicking on the tab at its top-left corner.