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\n\n\n'); } } function showLayer(layerName) /* ** showLayer(layerName) makes layerName visible. */ { eval(layerRef + '["' + layerName + '"]' + styleRef + '.visibility="visible"'); } function hideLayer(layerName) /* ** hideLayer(layerName) makes layerName hidden. */ { eval(layerRef + '["' + layerName + '"]' + styleRef + '.visibility="hidden"'); } var nrSlides = 4; /* ** nrSlides is a global variable for the total number of slides. */ var currentSlideNr = 1; /* ** currentSlideNr is a global variable for the current slide. */ var slideRate = 5000; /* ** slideRate is the length of time (in milliseconds) each slide ** is displayed for. */ function nextSlide() /* ** nextSlide() shows the next slide after the current one. */ { var nextSlideNr; nextSlideNr = currentSlideNr + 1; if (nextSlideNr > nrSlides) { nextSlideNr = 1; } hideLayer(eval('"slideLayer' + currentSlideNr +'"')); showLayer(eval('"slideLayer' + nextSlideNr + '"')); currentSlideNr = nextSlideNr; } function prevSlide() /* ** prevSlide() shows the previous slide before the current one. */ { var prevSlideNr; prevSlideNr = currentSlideNr + 1; if (prevSlideNr < 1) { prevSlideNr = nrSlides; } hideLayer(eval('"slideLayer' + currentSlideNr +'"')); showLayer(eval('"slideLayer' + prevSlideNr + '"')); currentSlideNr = prevSlideNr; } function startSlideShow() /* ** startSlideShow() starts the automatically running slideshow. */ { nextSlide(); setTimeout("startSlideShow()", slideRate); } // -->