function ValidLogin()
{
	var name = document.getElementById("Login1_txtName");
	var pwd = document.getElementById("Login1_txtPwd");
	if(Trim(name.value)==""||!IsVadCode(name.value)){
		alert("请输入您的用户名！");
		name.focus();
		return false;
	}
	if(Trim(pwd.value)==""||pwd.value.length<6||pwd.value.length>16||!IsVadCode(pwd.value)){
		alert("请填写正确密码！");
		pwd.focus();
		return false;
	}
	return true;
}

function renderImg()
{       
    if(document.getElementById("imgVerify")) document.getElementById("imgVerify").src = "/Include/CodeImage.aspx?" + Math.random();
}