function CheckSpeakerData()
{
	var isValid = true;
	var msg = "";

	with (document.getElementById("bookspeaker_form"))
        {
		/* User name is mandatory */
		if (name.value=="")
            {
			isValid = false;
			msg += "\n You must enter your name.";
		    }

        /* Phone number is mandatory.*/
		if (phone_number.value=="")
            {
			isValid = false;
			msg += "\n Comment content must not be empty.";
		    }
	    }

		if (msg == "")
            {
			alert("test");
		    }

        alert("test");

		return isValid;
}