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Your browser is completely ignoring the <APPLET> tag! Slider at the bottom controls what you see... you start with seeing all elements filtered to the predominant revisit rate. If you move the right slider to the left you are basically saying you don't want things that never change. The further you move it to the left, you require the document to change more often (range is in the title of the window displayed in seconds). If you leave the right slider all the way on the right, and start moving the left one you get things that change.