<!------------ Script to Validate Feedback Form -------------->

function isFilled(elm){				// Checks for null and empty spaces in the fields
  	if (elm.value == "" ||
      elm.value == null)
  	return false;
  	else return true;
}

function isEmail(elm) {				// Checks for valid email addresses
	if(elm.value.indexOf("@") != "-1" &&
	   elm.value.indexOf(".") != "-1" &&
	   elm.value != "")
	return true;
	else return false;
}

function isReady(form) {
	if (isFilled(form.txtFrom) == false) {
	alert("Please enter your email address.");
	form.txtFrom.focus();
	return false;
	}

	if (isEmail(form.txtFrom) == false) {
	alert("Please enter a valid email address.");
	form.txtFrom.focus();
	return false;
	}
	
	if (isFilled(form.txtMessage) == false) {
	alert("Please enter your comments.");
	form.txtMessage.focus();
	return false;
	}
}