function randomContent()
{
var chosenImage=new Array();
// filenames of images in this array
chosenImage[1]="/banner-0.jpg";
chosenImage[2]="/banner-1.jpg";
chosenImage[3]="/banner-2.jpg";
chosenImage[4]="/banner-3.jpg";
chosenImage[5]="/banner-4.jpg";

var getRan=Math.floor(Math.random()*chosenImage.length);
if (getRan==0)
getRan=1;

document.write('<img src=\"\images'+chosenImage[getRan]+'" alt=\"\" width=\"361\" height=\"241\" class=\"imageBorder\" />');
}