// JavaScript Document
function validateForm() {
  if (document.forms[0].name.value == "") {
    alert('Please enter your name.');
	document.forms[0].name.focus();
	return false;
    }

  if (document.forms[0].email.value == "") {
    alert('Please enter your email address.');
    document.forms[0].email.focus();
    return false;
    }
  else {
    var email = document.forms[0].email.value;
    var lsAT=0;
    var lsDOT=0;
    var i=0;
    lsAT = email.indexOf("@");

    for(i=0;i<email.length;i++) {
      if (email.charAt(i) == '.') {
        lsDOT=i;
        }
      }

    if ((lsDOT == '-1') || (lsAT == '-1') || (email.indexOf(" ") != '-1') || ((lsDOT-lsAT) < 2)) {
      alert('Your email address is invalid.');
      document.forms[0].email.focus();
      return false;
      }
    }

  if (document.forms[0].comments.value == "") {
    alert('Please enter your comments.');
	document.forms[0].comments.focus();
	return false;
    }

  return true;
  }