function refreshCc() {
	var now=new Date();
	var verifycode=now.getSeconds();
	var ccImg = document.getElementById("checkCodeImg");
	var ccImgSrc = "";
	if (ccImg) {
		if (document.all) {
			ccImgSrc = "js/passcode.php?verifycode="+verifycode;
		} else {
			nowTime = new Date()
			ccImgSrc = "js/passcode.php?verifycode="+verifycode+"&r=" + nowTime.getTime();
		}
		ccImg.src = ccImgSrc;
	}
}