var theImages = new Array();theImages[0] = 'http://www.totech.eu.com/de/products/images/frog1r.jpg';theImages[1] = 'http://www.totech.eu.com/de/products/images/frog2r.jpg';theImages[2] = 'http://www.totech.eu.com/de/products/images/frog3r.jpg';theImages[3] = 'http://www.totech.eu.com/de/products/images/frog4r.jpg';theImages[4] = 'http://www.totech.eu.com/de/products/images/frog5r.jpg';var j = 0;var p = theImages.length;var preBuffer = new Array();for (i = 0; i < p; i++){   preBuffer[i] = new Image();   preBuffer[i].src = theImages[i];}var whichImage = Math.round(Math.random()*(p-1));function showImage(){document.write('<img src="'+theImages[whichImage]+'">');}