function validate(thisForm){
	if(thisForm.first_name.value.length == 0){
		alert("姓氏欄位不得空白！");
		thisForm.first_name.focus();
		return false;
	}
	if(thisForm.last_name.value.length == 0){
		alert("名字欄位不得空白！");
		thisForm.last_name.focus();
		return false;
	}
}