// required fields check

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 type your ' + 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 type a valid e-mail address");
		formField.focus();
		result = false;
	}
   
  return result;

}


function validateForm(theForm)
{
	if (!validRequired(theForm.Name,"name",true))
		return false; 
                
	if (!validRequired(theForm.Surname,"surname",true))
		return false; 

                
	if (!validRequired(theForm.Phone,"phone",true))
		return false; 

	if (!validEmail(theForm.emailfrom,"e-mail address",true))
		return false;                                                                              
	
	return true;
}