var _img;
var _delay;

function authcode() {
	_img = new Image();
	_img.src = "../common/authcode.jsp?ver="+Math.random();
	_delay = 0;
	repeat("reloadImg()", 0.1);
}

function reloadImg() {
	if (_img.readyState == "complete" || _delay >= 100) {
		document.getElementById("ac").src = _img.src;
		stop();
	}
	else _delay ++;
}