function image() {
};

image = new image();
number = 0;

image[number++] = "<img src='images/random-garden/1.jpg' border='0' alt='Photograph of Forest Field Cottage garden'>"
image[number++] = "<img src='images/random-garden/2.jpg' border='0' alt='Photograph of Forest Field Cottage garden'>"
image[number++] = "<img src='images/random-garden/3.jpg' border='0' alt='Photograph of Forest Field Cottage garden'>"
image[number++] = "<img src='images/random-garden/4.jpg' border='0' alt='Photograph of Forest Field Cottage garden'>"
image[number++] = "<img src='images/random-garden/5.jpg' border='0' alt='Photograph of Forest Field Cottage garden'>"
image[number++] = "<img src='images/random-garden/6.jpg' border='0' alt='Photograph of Forest Field Cottage garden'>"
image[number++] = "<img src='images/random-garden/7.jpg' border='0' alt='Photograph of Forest Field Cottage garden'>"
image[number++] = "<img src='images/random-garden/8.jpg' border='0' alt='Photograph of Forest Field Cottage garden'>"
image[number++] = "<img src='images/random-garden/9.jpg' border='0' alt='Photograph of Forest Field Cottage garden'>"
image[number++] = "<img src='images/random-garden/10.jpg' border='0' alt='Photograph of Forest Field Cottage garden'>"

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

document.write(image[increment]);