// Function for Required Fields

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 to validate e-mail
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 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 calls with field labels

function validateForm(theForm)
{
theForm = document.contact;
  if (!validEmail(theForm.email,"E-mail",true)){
   return false;
}	
  if (!validRequired(theForm.comment,"Comment",true)){
   return false;
  }
  theForm.submit();
}

// function to reset form
function clearForm(form) {
	state = 0;
	form.reset();
	form.elements[0].focus();
}