$(document).ready(function(){
    $("#formexchange").validate({
		rules: {
				name: "required",
				tel: "required",
				emailaddress: "required",
				address: "required",
				model_interested: "required",
				price_range: "required"
				},
		messages: { 
				name: "Enter your name. ",
				tel: "Enter your telephone number. ",
				emailaddress: "Enter your email address. ",
				address: "Enter your address. ",
				model_interested: "Choose a model you're interested in. ",
				price_range: "Please select a price range. "
				},
	errorLabelContainer: $("div.error") });
});