var radio_selection="";
var radio_selection2="";
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 enter a value for the "' + fieldLabel +'" field.');
    formField.focus();
    result = false;
  }
  
  return result;
}

function validRadio(formField,fieldLabel)
{
  var result = true;
  
  if (radio_selection == "")
  {
    alert('Please enter a value for the "' + fieldLabel +'" field.');
    result = false;
  }
  
  return result;
}

function validRadio2(formField,fieldLabel)
{
  var result = true;
  
  if (radio_selection2 == "")
  {
    alert('Please enter a value for the "' + fieldLabel +'" field.');
    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 a complete email address in the form: yourname@yourdomain.com");
    formField.focus();
    result = false;
  }

  return result;

}

function validNum(formField,fieldLabel,required)
{
  var result = true;

  if (required && !validRequired(formField,fieldLabel))
    result = false;
  
   if (result)
   {
     var num = parseInt(formField.value);
     if (isNaN(num))
     {
       alert('Please enter a number for the "' + fieldLabel +'" field.');
      formField.focus();    
      result = false;
    }
  } 
  
  return result;
}

function validateForm(theForm)
{
  // Customize these calls for your form

  // Start ------->
if (!validRequired(theForm.firstname,"First Name",true))
    return false;
if (!validRequired(theForm.lastname,"Last Name",true))
    return false;
if (!validRadio(theForm.gender,"Gender",true))
    return false;
if (!validRequired(theForm.month,"Month",true))
    return false;
if (!validRequired(theForm.day,"Day",true))
    return false;
if (!validRequired(theForm.year,"Year",true))
    return false;
if (!validRequired(theForm.address,"Address",true))
    return false;
if (!validRequired(theForm.country,"Country",true))
    return false;
if (!validEmail(theForm.liame,"Email Address",true))
    return false;
if (!validRequired(theForm.phone,"Phone Number",true))
    return false;
if (!validNum(theForm.phone,"Phone Number",true))
    return false;
if (!validRequired(theForm.weeks,"Number of Weeks",true))
    return false;
if (!validNum(theForm.weeks,"Number of Weeks",true))
    return false;
if (!validRequired(theForm.startday,"Start Date",true))
    return false;
if (!validRadio2(theForm.fullpart,"Course Select",true))
    return false;
  // <--------- End
  
  return true;
}

function doHide(elementId)
{
document.getElementById(elementId).style.display = 'none';
}
function doShow(elementId)
{
document.getElementById(elementId).style.display = 'block';
}