function image() {};
image = new image();
number = 0;
same = "<div id='contentInnerBackground' style='background-image:url";
image[number++] = same + "(images/homeImg_1.gif);'>"
image[number++] = same + "(images/homeImg_2.gif);'>"
image[number++] = same + "(images/homeImg_3.gif);'>"
image[number++] = same + "(images/homeImg_4.gif);'>"
image[number++] = same + "(images/homeImg_5.gif);'>"
increment = Math.floor(Math.random() * number);
document.write(image[increment]);