$(document).ready(function(){
	$("#course_form").validate({
		rules: {
				title: "required",
				teach_mode: {required: true},
				detail: {required: true}
		},
		messages: {
			title: "    名称必须",
			teach_mode: {required: "    请选择教学方式"},
			detail: {required: "    介绍必须"}
		},
		errorPlacement: function(error, element) {   
    		error.appendTo(element.parent());   
		}
	});
 
});