//validate subscription form
function validate(){
	missinginfo = "";
	if (document.mailing.bt_name.value == "") {
		missinginfo += "\n   -  Name";
	}
	if ((document.mailing.email.value == "") ||
		(document.mailing.email.value.indexOf('@') == -1) ||
		(document.mailing.email.value.indexOf('.') == -1)) {
			missinginfo += "\n   -  Email Address";
	}
	if (missinginfo != "") {
		missinginfo ="_____________________________\n" +
		"You failed to correctly fill in your:\n" +
		missinginfo + "\n_____________________________" +
		"\nPlease re-enter and submit again!";
		alert(missinginfo);
		return false;
	}
	else return true;
}