// Random Image Generator
function image() {
};
image = new image();
number = 0;
// imageArray
image[number++] = "<img src='images/mast_residential_01.jpg' width='226' height='122'>"
image[number++] = "<img src='images/mast_residential_02.jpg' width='226' height='122'>"
image[number++] = "<img src='images/mast_residential_03.jpg' width='226' height='122'>"
image[number++] = "<img src='images/mast_residential_04.jpg' width='226' height='122'>"
image[number++] = "<img src='images/mast_residential_05.jpg' width='226' height='122'>"
image[number++] = "<img src='images/mast_residential_06.jpg' width='226' height='122'>"
image[number++] = "<img src='images/mast_residential_07.jpg' width='226' height='122'>"
image[number++] = "<img src='images/mast_residential_08.jpg' width='226' height='122'>"
image[number++] = "<img src='images/mast_residential_09.jpg' width='226' height='122'>"
// keep adding items here...
increment = Math.floor(Math.random() * number);
document.write(image[increment]);