function validate_tellafriend(obj) {
	if (obj.sSenderName.value == "") {
		alert("Please Input Your Name.");
		obj.sSenderName.focus();
		return false;
	} else if (obj.sSenderEmail.value == "" || obj.sSenderEmail.value.indexOf('@') == -1 || obj.sSenderEmail.value.indexOf('.') == -1) {
		alert("Please Input Your Valid Email Address.");
		obj.sSenderEmail.focus();
		return false;
	} else if (obj.sRecipientName.value == "") {
		alert("Please Input Friend's Name.");
		obj.sRecipientName.focus();
		return false;
	} else if (obj.sRecipientEmail.value == "" || obj.sRecipientEmail.value.indexOf('@') == -1 || obj.sRecipientEmail.value.indexOf('.') == -1) {
		alert("Please Input Friend's Valid Email Address.");
		obj.sRecipientEmail.focus();
		return false;
	} else {
		return true;
	}
}