function checkFields() 
{
	missinginfo = "";
	if (document.sendmail.first_name.value == "") {
		missinginfo += "\n     -  First Name";
	}
	if (document.sendmail.last_name.value == "") {
		missinginfo += "\n     -  Last Name";
	}
	if ((document.sendmail.email.value == "") || 
		(document.sendmail.email.value.indexOf('@') == -1) || 
		(document.sendmail.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;
}