// JavaScript Document

function checkForm(){

	var myX = document.contactForm.email.value;
	var filter  = /^[a-zA-Z][\w\.-]*[a-zA-Z0-9]@[a-zA-Z0-9][\w\.-]*[a-zA-Z0-9]\.[a-zA-Z][a-zA-Z\.]*[a-zA-Z]$/;

	if (document.contactForm.name.value ===""){
		alert("Please provide your name.");
		document.contactForm.name.focus();
		return false;
	}

	if (document.contactForm.email.value === ""){
		alert("Please enter your email address.");
		document.contactForm.email.focus();
		return false;
	}

	if (document.contactForm.email.value !==""){
		if (!filter.test(myX)) {
		alert("Oops, looks like there's a problem with your email address.");
		document.contactForm.email.focus();
		return false;
		}
	}

	if (document.contactForm.message.value === ""){
		alert("Please enter a brief message.");
		document.contactForm.message.focus();
		return false;
	}
	
	return (true);
	
}