var ac_image;
var ac_delay;
var ac_timer;

function authcodeRefresh() {
	if (ac_delay > 0) return;
	ac_image = new Image();
	ac_image.src = "../common/authcode.jsp?ver=" + Math.random();
	ac_delay = 0;
	ac_timer = setInterval("reloadImg()", 100);
}

function reloadImg() {
	if (ac_image.readyState == "complete" || ac_image.complete || ac_delay >= 10) {
		if (ac_delay < 10) obj("ac").src = ac_image.src;
		clearInterval(ac_timer);
		ac_delay = 0;
	}
	else ac_delay ++;
}