function image() {
};

image = new image();
number = 0;

// imageArray
image[number++] = "<img src='images/header-1.jpg' border='0'>"
image[number++] = "<img src='images/header-2.jpg' border='0'>"
image[number++] = "<img src='images/header-3.jpg' border='0'>"
image[number++] = "<img src='images/header-4.jpg' border='0'>"
image[number++] = "<img src='images/header-5.jpg' border='0'>"
image[number++] = "<img src='images/header-6.jpg' border='0'>"
image[number++] = "<img src='images/header-7.jpg' border='0'>"
image[number++] = "<img src='images/header-8.jpg' border='0'>"
image[number++] = "<img src='images/header-9.jpg' border='0'>"
image[number++] = "<img src='images/header-10.jpg' border='0'>"
image[number++] = "<img src='images/header-11.jpg' border='0'>"
image[number++] = "<img src='images/header-12.jpg' border='0'>"
image[number++] = "<img src='images/header-13.jpg' border='0'>"
image[number++] = "<img src='images/header-14.jpg' border='0'>"
image[number++] = "<img src='images/header-15.jpg' border='0'>"
image[number++] = "<img src='images/header-16.jpg' border='0'>"
image[number++] = "<img src='images/header-17.jpg' border='0'>"
image[number++] = "<img src='images/header-18.jpg' border='0'>"
image[number++] = "<img src='images/header-19.jpg' border='0'>"


// keep adding items here...

increment = Math.floor(Math.random() * number);

document.write(image[increment]);
