addLoadListener(init);

function init()
{
  document.forms[0].onsubmit = validateFields;

  return true;
}

function validateFields()
{
  var firstName = document.forms[0].elements["Q24"];
  var lastName = document.forms[0].elements["Q25"];
  var suburb = document.forms[0].elements["Q27"];
  var postcode = document.forms[0].elements["Q29"];
  var phone = document.forms[0].elements["Q30"];
  var mobile = document.forms[0].elements["Q31"];
  var email = document.forms[0].elements["Q32"];
  
  if ((firstName.value != "") && (lastName.value != "") && (suburb.value != "") && (postcode.value != "") && (email.value != ""))
  {
	   if ((phone.value == "") && (mobile.value == ""))
		  {
			alert("You must provide at least one contact number.");
			 /*Abort submission */
			return false;
		  }
	  
	  if (!/^[\w\.\-]+@([\w\-]+\.)+[a-zA-Z]+$/.test(email.value))
	  {
		alert("That is not a valid e-mail address, please amend.");
		return false;
	  }
		 /* Continue with submission */
		return true;
  }
  else
  {
    alert("Please fill out all required fields (marked with an *).");

    /* Abort submission */
    return false;
  }
}

function addLoadListener(fn)
{
  if (typeof window.addEventListener != 'undefined')
  {
    window.addEventListener('load', fn, false);
  }
  else if (typeof document.addEventListener != 'undefined')
  {
    document.addEventListener('load', fn, false);
  }
  else if (typeof window.attachEvent != 'undefined')
  {
    window.attachEvent('onload', fn);
  }
  else
  {
    var oldfn = window.onload;
    if (typeof window.onload != 'function')
    {
      window.onload = fn;
    }
    else
    {
      window.onload = function()
      {
        oldfn();
        fn();
      };
    }
  }
};