//邮箱格式检查
function emailCheck() {
	var email = document.getElementById("email").value;
	document.getElementById('emailDiv').style.visibility = "visible";
	if (email != "") {
		var re = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(.[a-zA-Z0-9_-])+/;
		var result = re.test(email);
		if (result) {
			document.getElementById('emailDiv').className = "yes";
			$("#emailError").html("格式正确！");
			return true;
		} else {
			document.getElementById('emailDiv').className = "wrong";
			$("#emailError").html("邮箱格式错误！");
			return false;
		}
	} else {
		document.getElementById('emailDiv').className = "wrong";
		$("#emailError").html("请填写邮箱！");
		return false;
	}
}