function validate(){
	if (!document.forms[0]["login"].value.replace(/^\s+/,'').length>0){
		alert("Please enter your user ID.");
		document.forms[0]["login"].focus();
		return false;
	}
	if (!document.forms[0]["password"].value.replace(/^\s+/,'').length>0){
		alert("Please enter your password.");
		document.forms[0]["password"].focus();
		return false;
	}
	return true;
}