function validTellFriend() {
    if (tellFriend.yourName.value=="" || tellFriend.yourName.value.length<2) {
        alert("Please enter your name.");
        tellFriend.yourName.focus();
        tellFriend.yourName.select();
        return false;
    }
    if (tellFriend.friendsName.value=="" || tellFriend.friendsName.value.length<2) {
        alert("Please enter your friends name.");
        tellFriend.friendsName.focus();
        tellFriend.friendsName.select();
        return false;
    }
    if (tellFriend.friendsEmail.value=="" || tellFriend.friendsEmail.value.length<2) {
	    alert("Please enter your friends email address.");
	    tellFriend.friendsEmail.focus();
	    tellFriend.friendsEmail.select();
	    return false;
    }
    tellFriend.yourName.value = "";
    tellFriend.friendsName.value = "";
    tellFriend.friendsEmail.value = "";
    tellFriend.yourmessage.value = "";
    return true;
}