$(document).ready(function(){
	$("#submit").click(function(){					   				   
		$(".error").hide();
		var hasError = false;
		var emailReg = /^([\w-\.]+@([\w-]+\.)+[\w-]{2,4})?$/;
		
		var courseVal = $("#course").val();
		if(courseVal == '') {
			$("#course").after('<span class="error"> You must enter a course.</span>');
			hasError = true;
		}

		var nameVal = $("#name").val();
		if(nameVal == '') {
			$("#name").after('<span class="error"> You must enter your name.</span>');
			hasError = true;
		}

		var emailFromVal = $("#emailFrom").val();
		if(emailFromVal == '') {
			$("#emailFrom").after('<span class="error"> You must enter an email address.</span>');
			hasError = true;
		} else if(!emailReg.test(emailFromVal)) {	
			$("#emailFrom").after('<span class="error"> Please enter a valid email address.</span>');
			hasError = true;
		}
		
		var phoneNumberVal = $("#phoneNumber").val();
		if(phoneNumberVal == '') {
			$("#phoneNumber").after('<span class="error"> You must enter a phone number.</span>');
			hasError = true;
		}
		
		var messageVal = $("#message").val();
		if(messageVal == '') {
			$("#message").after('<span class="error"> You must enter a message.</span>');
			hasError = true;
		}
		
		
		if(hasError == false) {
			$(this).hide();
			$("#sendEmail li.buttons").append('<img src="images/ajax-loader.gif" alt="Loading" id="loading" />');
			
			$.post("sendemail.php",
   				{ course: courseVal, name: nameVal, emailFrom: emailFromVal, phoneNumber: phoneNumberVal, message: messageVal },
   					function(data){
						$("#sendEmail").slideUp("normal", function() {				   
							
							$("#sendEmail").before('<p class="error">Thank you, the message was sent successfully.</p>');											
						});
   					}
				 );
		}
		
		return false;
	});						   
});