function validRequired(formField,fieldLabel)
{
	var result = true;
	
	if (formField.value == "")
	{
		alert('Please do not leave the "' + fieldLabel +'" field empty.');
		formField.focus();
		result = false;
	}
	
	return result;
}

function validNumVal(formField,fieldLabel)
{
	var result = true;
	
	if (formField.value == 0)
	{
		alert('Please do not leave the "' + fieldLabel +'" field empty.');
		formField.focus();
		result = false;
	}
	
	return result;
}

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 validateForm(smsForm)
{

	// Start ------->
	if (!validNumVal(smsForm.cellno,"Mobile number"))
		return false;

	if (!validEmail(smsForm.smssubmitter,"Email Address",true))
		return false;

	if (!validRequired(smsForm.smstext,"SMS Text"))
		return false;

	return true;
}


function textCounter(field, countfield, maxlimit) {
	if (field.value.length > maxlimit)
		{field.value = field.value.substring(0, maxlimit);}
	else 
		{countfield.value = maxlimit - field.value.length;}
}