// Random image JavaScript. This script selects an image at random from
// a list of possible choices. This script is tested in Netscape and IE for Mac
// and PC. Lachie.

// © 2002, Couch Design Studio.


var numImages = 3;				// Number of different images for random selection.
var imageWidth = 357;				// The width, in pixels, of the images.
var imageHeight = 92;				// The height, in pixels, of the imaes.
var imageAltText = "car on road, satellite dish, waterfall, sunlight, beach, clouds";	// Alt text to be displayed if an image doesn't load.


var imageList = new Array( numImages );

// Enter URLs for randomly selected images below. URLs are relative to the
// page that will run this script. Not the script itself.

imageList[0] = "images/index/photos_1.jpg";
imageList[1] = "images/index/photos_2.jpg";
imageList[2] = "images/index/photos_3.jpg";


// This function writes HTML code to the page to display a randomly selected
// image. Insert the function call in the HTML document where you would
// normally have put the image tag.

function RandomImage()
{
	randomNum = RandomInt( numImages );
	imageName = imageList[randomNum];
	imageString = "<IMG SRC=\"" + imageName + "\" WIDTH=\"" + imageWidth +
				 "\" HEIGHT=\"" + imageHeight + "\" ALT=\"" + imageAltText + "\">";
	document.write( imageString );
}


// This function returns a random integer between 0 and one less than the value
// passed for <range>.

function RandomInt( range ) {return Math.floor( Math.random() * range );}