function signIN() {

    if (signin.uid.value=="") {
        alert("Please Enter Your User ID.");
        signin.uid.focus();
        signin.uid.select();
        return false;
    }
    if (signin.pwd.value=="") {
        alert("Please Enter Your Password.");
        signin.pwd.focus();
        signin.pwd.select();
        return false;
   }
    return true;
}

function siReminder() {
    str1=/\@/g;
    if (sireminder.email.value=="") {
        alert("Please Enter Your Email Address.");
        sireminder.email.focus();
        sireminder.email.select();
        return false;
    }
    if (sireminder.email.value.length < 5) {
        alert("Please Enter Your Valid Email Address.");
        sireminder.email.focus();
        sireminder.email.select();
        return false;
    }
    
    if (sireminder.email.value.match(str1) == null) {
        alert("Please Enter Your Valid Email Address\nIncluding the @ Sign.");
        sireminder.email.focus();
        sireminder.email.select();
        return false;
    }
    return true;
}