// this checks for a valid email address.  

function isEmail(elm) {
  if (elm.value.indexOf("@") != "-1" && elm.value.indexOf(".") != "-1")
// || elm.value == ""
    return true;
    else return false; 
    }

    function isFilled(elm) {
    if (elm.value == "" ||
    elm.value == null)
    return false;
    else return true;
    }

function isReady(contactform) {
	if (isFilled(contactform.name) == false) {
		alert("Please enter your Name.");
        contactform.name.focus();
        return false;
    }

	if (isEmail(contactform.email) == false) {
		alert ("Please enter a valid Email address.");
		contactform.email.focus();
		return false;
	}
	
	if (isFilled(contactform.subject) == false) {
		alert ("Please enter a subject.");
		contactform.subject.focus();
		return false;
	}


	if (isFilled(contactform.message) == false) {
        alert("Please enter your message in the space provided.");
        contactform.message.focus();
        return false;
	}
	return true;
}