function Validate()
{
	errMsg="";
	isValid(document.forms[0].nickname.value,"login","Nickname",true,2,20);
	if(errMsg!="")
	{
		alert(errMsg);
		document.forms[0].nickname.focus();
		return false;
	}
	isValid(document.forms[0].secretcode.value,"pass","Secretcode",true,2,20);
	if(errMsg!="")
	{
		alert(errMsg);
		document.forms[0].secretcode.focus();
		return false;
	}
	return true;
}