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;
}

function validRequired(formField,fieldLabel)
{
	var result = true;
	
	if (formField.value == "")
	{
		alert('Please fill: "' + fieldLabel +'"');
		formField.focus();
		result = false;
	}
	
	return result;
}


function validEmail(formField,fieldLabel,required)
{
	var result = true;
	
	if (required && !validRequired(formField,fieldLabel))
		result = false;

	if (result && ((formField.value.length < 3) || !isEmailAddr(formField.value)) )
	{
		alert("Please enter correct e-mail address");
		formField.focus();
		result = false;
	}
   
  return result;

}

function validateForm(theForm)
{

// Početak izmjena za prilagodbu forme------->
	if (!validRequired(theForm.Gender,"Gender"))
		return false;
	if (!validRequired(theForm.Last_name,"Last name"))
		return false;
	if (!validRequired(theForm.First_name,"First name"))
		return false;
	if (!validRequired(theForm.Phone,"Phone"))
		return false;
	if (!validEmail(theForm.e_mail,"E-mail",true))
		return false;		
	if (!validRequired(theForm.Program_starting_date,"Program starting date"))
		return false;
	if (!validRequired(theForm.Preferred_hotel_category,"Preferred hotel category"))
		return false;
	if (!validRequired(theForm.Number_of_adults,"Number of adults"))
		return false;
	if (!validRequired(theForm.Number_of_children,"Number of children"))
		return false;
	if (!validRequired(theForm.Method_of_payment,"Method of payment"))
		return false;

	if (!validRequired(theForm.zaporka,"Control code"))
		return false;

	return true;
}