function validForm(userForm)
{
  var company = userForm.company.value;
  var firstname = userForm.firstname.value;
  var email = userForm.email.value;
  
  var errcompany = "";
  var errfirstname = "";
  var erremail = "";

  if (company == "")
     errcompany = "Enter a company name<br />";

  if (firstname == "")
     errfirstname += "Enter your first name <br />";
	 
  if (email == "") {
     erremail += "Enter an email <br />";
  }
  else if(email != "") {
    found = checkfreemail(email);
	if (found) {
	  erremail += "Free email domains cannot be used to register for a free trial &mdash; please call 1300 667 355 if you do not have a paid email";
	}
	else {
      re =  /^.+\@(\[?)[a-zA-Z0-9\-\.]+\.([a-zA-Z]{2,3}|[0-9]{1,3})(\]?)$/; 
      if (!re.test(email)) {
        erremail += "email is invalid";
      }
	}
  }

  if (errcompany == "" && errfirstname =="" && erremail =="")
     return true;
  else
  {
  	 document.getElementById('errcompany').innerHTML = errcompany;	
  	 document.getElementById('errfirstname').innerHTML = errfirstname;	
  	 document.getElementById('erremail').innerHTML = erremail;
     return false;   
  }
}

function checkfreemail(email) {
  var found = false; 
  var emails = ['yahoo.com','hotmail.com','live.com','gmail.com','mail.com','email.com','freemail.com','hushmail.com','hotmail.co.uk'];
  for( var i in emails) {
    if(email.indexOf(emails[i])!=-1) {
      found = true;
	  continue;
	}
  }
  return found;
}