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 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('You must enter only a valid number for the "' + fieldLabel +'" field.');
      formField.focus();
      result = false;
    }
  }

  return result;
}

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

  if (required && !validRequired(formField,fieldLabel))
    result = false;

   if (result)
   {
     var elems = formField.value.split("/");

     result = (elems.length == 3); // should be three components

     if (result)
     {
       var month = parseInt(elems[0]);
        var day = parseInt(elems[1]);
       var year = parseInt(elems[2]);
      result = !isNaN(month) && (month > 0) && (month < 13) &&
            !isNaN(day) && (day > 0) && (day < 32) &&
            !isNaN(year) && (elems[2].length == 4);
     }

      if (!result)
     {
       alert('Please enter a date in the format MM/DD/YYYY for the "' + fieldLabel +'" field.');
      formField.focus();
    }
  }

  return result;
}

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

  // Start ------->
  if (!validEmail(theForm.username,"username"))
    return false;
  if (!validRequired(theForm.password,"password"))
    return false;     
    
  // <--------- End

  return true;
}

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

  // Start ------->
  if (!validRequired(theForm.Name,"You Name"))
    return false;
  if (!validEmail(theForm.Email,"You Email"))
    return false;       
  if (!validRequired(theForm.FName,"Friends Name"))
    return false;
  if (!validEmail(theForm.FEmail,"Friends Email"))
    return false;    
   
    
  // <--------- End

  return true;
}