function image() { 
}; 
image = new image(); 
number = 0; 
// imageArray 
image[number++] = '<IMG SRC="img/ban/banner1.jpg" WIDTH=804 HEIGHT=155>';
image[number++] = '<IMG SRC="img/ban/banner2.jpg" WIDTH=804 HEIGHT=155>';
image[number++] = '<IMG SRC="img/ban/banner3.jpg" WIDTH=804 HEIGHT=155>';
image[number++] = '<IMG SRC="img/ban/banner4.jpg" WIDTH=804 HEIGHT=155>';
image[number++] = '<IMG SRC="img/ban/banner5.jpg" WIDTH=804 HEIGHT=155>';
image[number++] = '<IMG SRC="img/ban/banner6.jpg" WIDTH=804 HEIGHT=155>';
image[number++] = '<IMG SRC="img/ban/banner7.jpg" WIDTH=804 HEIGHT=155>';
// keep adding items here... 
increment = Math.floor(Math.random() * number);