function emailCheck(obj) {
obj.sender_name.className = 'text';
obj.sender_email.className = 'text';

if (obj.contact[obj.contact.selectedIndex].value == '') {
 alert("Please choose whom you want to send this email to.\n\nThank you.");
 obj.contact.focus();
 return false;
} else if (obj.message.value.length < 1) {
 alert("Please type in your message.\n\nThank you.");
 obj.message.focus();
 return false;
}

return true;
}