function checkform()
{
if (document.contact.realname.value == 0){
		alert("Please enter your name");
		document.contact.realname.focus();
		return false;
	}
if (document.contact.Email.value == 0){
    alert("Please enter a value for the \"Email\" field.");
    document.contact.Email.focus();
    return false;
  }
if (!isEmailAddr(document.contact.Email.value)){
    alert("Please enter a complete email address in the form: yourname@yourdomain.com");
    document.contact.Email.focus();
    return false;
  }
if (document.contact.Email.value.length < 3){
    alert("Please enter at least 3 characters in the \"Email\" field.");
    document.contact.Email.focus();
    return false;
  }
if (document.contact.message.value == 0){
	alert("Please write a message");
	document.contact.message.focus();
	return false;
  }
return true;
}

function isEmailAddr(Email)
{
  var result = false
  var theStr = new String(Email)
  var index = theStr.indexOf("@");
  if (index > 0)
  {
    var pindex = theStr.indexOf(".",index);
    if ((pindex > index+1) && (theStr.length > pindex+1))
	result = true;
  }
  return result;
}