//Random Image
// Type the number of images you are rotating.
NumberOfImages = 40;

// Specify the first and last part of the image tag.
FirstPart = '<img src="../Images/katzen/random/katze';
LastPart = '.jpg" width="600" class="figure_center" />';

function printImage() 
{
	var r = Math.ceil(Math.random() * NumberOfImages);
	document.write(FirstPart + r + LastPart);
}