function makeRandomIllustration() {
// Declare variables
var myTotalImages = 9; // total images to choose a random image from
var myTotalCaptions = 12; // total captions to choose from
var ImagesFolder = "/images/illus/";
var ImageNamePrefix = "illus_";
CaptionArray = new Array();
// Build single dimension array of captions below image
CaptionArray[1] = "The Sprinkler House has the products you need. We have over 2,000 products from Toro, Rain Bird, Irrotrol, Otterbine and Netafim.";
CaptionArray[2] = "Visit a The Sprinkler House store nearest you! We have store locations throughout New England and New York.";
CaptionArray[3] = "Save time and money on irrigation supplies. Take advantage of The Sprinkler House convenient credit and payment terms. Apply today!";
CaptionArray[4] = "Cash in on the benefits of one-stop shopping, with the best customer service. Visit The Sprinkler House nearest you!";
CaptionArray[5] = "The Sprinkler House delivers what you need, when you need it. Speak to our knowledgeable team at a Sprinkler House store location nearest you!";
CaptionArray[6] = "Discover The Sprinkler House store nearest you! The Sprinkler House stores are kept fully stocked so you get what you need, when you need it.";
CaptionArray[7] = "For over 35 years we've been helping our customers get what they need, and our Project Design Assistance team can help you get a large job done right.";
CaptionArray[8] = "At The Sprinkler House, you can count on it. No one provides a more complete lineup of commercial irrigation products from Toro than we do.";
CaptionArray[9] = "Discover Rain Curtain Technology from Rain Bird for superior water distribution, battery operated controllers, or to manage irrigation sites from a personal computer with wireless systems.";
CaptionArray[10] = "True classics never go out of style. Irrotrol irrigation products have been the contractor's choice for dependability in residential and light commercial applications.";
CaptionArray[11] = "Fight algae and weeds with an aerating fountain from Otterbine.";
CaptionArray[12] = "Netafim offers innovative irrigation-based solutions and water technologies that solve problems and raise productivity, while protecting the environment and saving water.";
// Choose a random number from the total images available for this image position
// Choose a random number for caption
var myRandomImageNumber = Math.random() * myTotalImages;
var myRandomCaptionNumber = Math.random() * myTotalCaptions;
// Round the random number to a whole number (integer) because random numbers include decimal values
// (This could be combined with lines above)
var myRoundedImageNumber = Math.round(myRandomImageNumber);
var myRoundedCaptionNumber = Math.round(myRandomCaptionNumber);
// Correct any number rounded less than one
if (myRoundedImageNumber < 1) { myRoundedImageNumber = 1; }
if (myRoundedCaptionNumber < 1) { myRoundedCaptionNumber = 1; }
// assemble image file name and file path
// EXAMPLE: /images/illus/illus_1.jpg
var myImageName = ImagesFolder + ImageNamePrefix + myRoundedImageNumber + '.jpg';
document.images['illustration'].src = myImageName;
// Write caption - This is not in HTML because we don't need it unless they have JavaScript turned on
document.write ("");
document.write (CaptionArray[myRoundedCaptionNumber]);
document.write ("
");
//debug
//document.write ("myRoundedImageNumber = " + myRoundedImageNumber + "
" + "myRoundedCaptionNumber = " + myRoundedCaptionNumber + "
");
}