function image() {};
image = new image();
number = 0;
image[number++] = "<img src='../../images/add1.gif'>"
image[number++] = "<img src='../../images/add2.gif'>"
image[number++] = "<img src='../../images/add3.gif'>"
increment = Math.floor(Math.random() * number);
document.write(image[increment]);