function onsubmited()
{
	if(document.form1.user.value == "")
	{
		alert("请输入帐号!");
		document.form1.user.focus();
		return false;
	}
	var name = document.form1.user.value;
	if(name.length < 2 || name.length > 16)
	{
		alert("帐号不能大于16或小于4个字符！");
		document.form1.user.focus();
		return false;
	}
	if(document.form1.psw.value == "")
	{
		alert("请输入密码！");
		document.form1.psw.focus();
		return false;
	}
	name = document.form1.psw.value;
	if(name.length < 2 || name.length > 16)
	{
		alert("密码不能大于16或小于4个字符！");
		document.form1.psw.focus();
		return false;
	}
	
	return true;
}