function checkNick() {

	var nick = document.getElementById("UserName").value;

	if (nick == "") {

		return false;

	}

	//if (nick == lastNick) {

		//return false;

	//}

	document.checkNickForm.TPL_NICK.value = nick;

	document.getElementById("check_username_info").innerHTML = "检测中，请稍等...";

	document.getElementById("check_username_info").className = "WarningMsg";

	document.checkNickForm.submit();

	return true;

}