// JavaScript Document

 function IsEmpty(aTextField) {
	 
   if ( (aTextField.value==null) || (aTextField.value.length==0) ) {
     return true;
   }
   else { return false; }
}
	
function isValidEmail(str) {
   return (str.indexOf("@") > 0);
}

function suscribe(){
 var aForm = document.fData;
 
 if ( IsEmpty(aForm.email) || !isValidEmail(aForm.email.value) ){
  alert("Please check your email address");
  return false;
 }
 
 aForm.method = "post";
 aForm.action = "newsreg.php";
 aForm.submit();
}

function contact(){

 var aForm = document.fData;
 
 if ( IsEmpty(aForm.Email) || !isValidEmail(aForm.Email.value) ){
  alert("Please check your email address");
  return false;
 }
 
 aForm.method = "post";
 aForm.action = "contactreg.php";
 aForm.submit();
 
}

function referafriend(){

 var aForm = document.fData;
 
 if ( IsEmpty(aForm.MyName) || IsEmpty(aForm.MyEmail) || IsEmpty(aForm.TheirName) || IsEmpty(aForm.TheirEmail)){
  alert("Please check your submission. Fields cannot be empty.");
  return false;
 }
 
 aForm.method = "post";
 aForm.action = "referfriend.php";
 aForm.submit();
}