/* Name: randomImage.js
 * Description: JavaScript code for choosing a random image from a designated set.
 * Copyright: None, Public domain.
 */

var imageFiles = new Array() // Set up the array that will hold the image files
// Modify the following to suit your needs.
imageFiles[0] = 'example.1'
imageFiles[1] = 'example.2'
imageFiles[2] = 'example.3'
imageFiles[3] = 'example.4'

// End modification

// There is no need to modify anything after this.

var counter = imageFiles.length;
var preBuffer = new Array()

for (i = 0; i < counter; i++)
{
   preBuffer[i] = new Image()
   preBuffer[i].src = imageFiles[i]
}

var whichImage = Math.round(Math.random() * (counter-1));

function showImage()
{
    // This code should be modified to suit your needs. Change and/or remove the height, width and alt tags.
    document.write('<img src="'+imageFiles[whichImage]+' height="change this" width="change this" alt="Change this"">');
}