// JScript 文件

function CheckInfo()
{
    if($F("txt_name")=="")
    {
        alert("Please enter your name!");
        $("txt_name").focus();
        return false;
    }
    if($F("txt_tel")=="")
    {
        alert("Please enter your phone number!");
        $("txt_tel").focus();
        return false;
    }
    if($F("txt_mail")=="")
    {
        alert("Please enter your E-mail!");
        $("txt_mail").focus();
        return false;
    }
    if(!validateEmail($F("txt_mail")))
    {
        alert("The email address does not exist, please reenter your email address!");
        $("txt_mail").focus();
        return false;
    }
    if($F("txt_content")=="")
    {
        alert("Please leave your words!");
        $("txt_content").focus();
        return false;
    }       
    if($F("txt_mobile")!="")
    {
        if(isNaN($F("txt_mobile")))
        {
            alert("The phone number does not exist, please check and reenter!");
            return false;
        }
    }
    if($F("txt_poster")!="")
    {
        if(isNaN($F("txt_poster")))
        {
            alert("The zip code is not correct, please check and reenter!");
            return false;
        }
    }
    return true;
}   

function $(obj)
{
    return document.getElementById(obj);
}
function $F(obj)
{
    return $(obj).value;
}