//This script and many more are available free online at The JavaScript Source, javascript.internet.com

                    // Set up the image files to be used.
                    var theImages = new Array() // do not change this
                    // To add more image files, continue with the
                    // pattern below, adding to the array.

                    theImages[0] = '/_styles/images/3Horses.gif'
                    theImages[1] = '/_styles/images/banner2.jpg'
                    theImages[2] = '/_styles/images/banner3.jpg'
                    theImages[3] = '/_styles/images/banner4.jpg'


                    // do not edit anything below this line

                    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]+'">');
                    }

                    showImage();