<!-- Begin
function emailCheck (emailStr) {
var emailPat=/^(.+)@(.+)$/
var specialChars="\\(\\)<>@,;:\\\\\\\"\\.\\[\\]"
var validChars="\[^\\s" + specialChars + "\]"
var quotedUser="(\"[^\"]*\")"
var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/
var atom=validChars + '+'
var word="(" + atom + "|" + quotedUser + ")"
var userPat=new RegExp("^" + word + "(\\." + word + ")*$")
var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$")

var matchArray=emailStr.match(emailPat)
if (matchArray==null) {
	alert("Email address seems incorrect (check @ and .'s), or you havn't provided one.\nThe format is: yourusername@yourdomain.com")
	return false
}
var user=matchArray[1]
var domain=matchArray[2]

if (user.match(userPat)==null) {
    alert("The username doesn't seem to be valid.\nThe format is: yourusername@yourdomain.com")
    return false
}

var IPArray=domain.match(ipDomainPat)
if (IPArray!=null) {
    // this is an IP address
	  for (var i=1;i<=4;i++) {
	    if (IPArray[i]>255) {
	        alert("Destination IP address is invalid!\nThe format is: xxx.xxx.xxx.xxx")
		return false
	    }
    }
    return true
}

var domainArray=domain.match(domainPat)
if (domainArray==null) {
	alert("The domain name doesn't seem to be valid.\nThe format is: yourusername@yourdomain.com")
    return false
}

var atomPat=new RegExp(atom,"g")
var domArr=domain.match(atomPat)
var len=domArr.length
if (domArr[domArr.length-1].length<2 || 
    domArr[domArr.length-1].length>3) {
   alert("The email address must end in a three-letter domain,\nor two letter country.\nexample: .com or .net or .uk or .sk etc.")
   return false
}

if (len<2) {
   var errStr="This address is missing a hostname!"
   alert(errStr)
   return false
}

return valid(form_emailfrm)
}
//  End -->

<!--
function valid(form) {
  var from = form.form_from.value;
  var subject = form.form_subject.value;
  var message = form.form_message.value;
  if (from == "type your email address here") {
     alert("Please provide an email address.");
     return false;
  }
  if (from == "") {
     alert("Please provide an email address.");
     return false;
  }
  if (subject == "type a subject here") {
    alert("Please provide a subject.");
    return false;
  }
  if (!subject) {
    alert("Please provide a subject.");
    return false;
  }
  if (message == "type your message here") {
    alert("Please provide a message.");
    return false;
  }
  if (!message) {
    alert("Please provide a message.");
    return false;
  }
}
// -->