function validate(frm) 
{
if (frm.First_Name.value.length == 0)
    {alert("Fields marked with an asterisk are mandatory. Please enter your first name.");
        frm.First_Name.focus();
        return false;}
if (frm.Last_Name.value.length == 0)
    {alert("There are a lot of us with that first name. Please enter your last name.");
        frm.Last_Name.focus();
        return false;}
if (frm.Affiliation.value.length < 3)
    {alert("Fields marked with an asterisk are mandatory. Please enter your affiliation.");
        frm.Affiliation.focus();
        return false;}
if (frm.Street1.value.length < 10)
    {alert("How will we be able to send you mail if we don't know where you live? Please enter your street address.");
        frm.Street1.focus();
        return false;}
if (frm.City.value.length < 2)
    {alert("There are a lot of streets with that name. Please enter your city.");
        frm.City.focus();
        return false;}
if (frm.Postal_or_ZIP_Code.value.length < 3)
    {alert("The post office won't deliver mail without a postal code. Please enter your postal or ZIP code.");
        frm.Postal_or_ZIP_Code.focus();
        return false;}
if (frm.Email.value.length < 5)
    {alert("We can't email you if you don't give us an address. Please enter an e-mail address");
        frm.Email.focus();
        return false;}
if (frm.Email.value.indexOf("@") == -1)
    {alert("At least stick an @ in there so that it LOOKS like an email address. Please enter a valid e-mail address.");
        frm.Email.focus();
        return false;}
}