img = new Array();
img[0] = "/common/images/main_image01.jpg";
img[1] = "/common/images/main_image02.jpg";
img[2] = "/common/images/main_image03.jpg";
img[2] = "/common/images/main_image04.jpg";
img[2] = "/common/images/main_image05.jpg";


function setBanner(){
	amount = img.length;
	No = Math.floor(Math.random()*amount);
	document.write("<img src='" + img[No] + "' />");
}