document.observe("dom:loaded", function() {

 	if ($('quoteform')) {

		$('quoteform').observe('submit', function(event){
	
		var myForm = Event.element(event);
		var name = myForm['Name'];
		var email = myForm['email'];
		var tel = myForm['Tel_No'];

		if ($F(name).length < 1 || ($F('email').length < 1 && $F('tel').length < 1)) { 
			alert('You need to enter your name and an email address or telephone number');
			Form.Element.focus(name);
			Event.stop(event);}

		});

	}

});