function image() {};

var image = new image();
number = 0;
// image[number++] = "<a href='http://www.2tempi.it'><img src='http://www.2tempi.it/mkportal/templates/default/images/top_image_kappa.jpg' border='0' alt='Torna in homepage!' /></a>"
image[number++] = "<a href='http://www.2tempi.it'><img src='http://www.2tempi.it/mkportal/templates/default/images/top_image_nitro2.jpg' border='0' alt='Torna in homepage!' /></a>"
image[number++] = "<a href='http://www.2tempi.it'><img src='http://www.2tempi.it/mkportal/templates/default/images/top_image_nitro.jpg' border='0' alt='Torna in homepage!' /></a>"
image[number++] = "<a href='http://www.2tempi.it'><img src='http://www.2tempi.it/mkportal/templates/default/images/top_image.jpg' border='0' alt='Torna in homepage!' /></a>"
image[number++] = "<a href='http://www.2tempi.it'><img src='http://www.2tempi.it/mkportal/templates/default/images/top_image_zip.jpg' border='0' alt='Torna in homepage!' /></a>"

increment = Math.floor(Math.random() * number);