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 fill out ' + fieldLabel);
		formField.focus();
		result = false;
	}
	
	return result;
}

function validRequiredDropDown(formField,fieldLabel)
{
	var result = true;
	
	var optionValue = formField.options[formField.selectedIndex].value;
	
	//alert('this is the selected value for the "' + fieldLabel +'" field.' + ' ->' + optionValue);
	
	if (optionValue == "none")
	{
		alert('Please select or enter a value for the "' + fieldLabel +'" field.');
		formField.focus();
		result = false;
		return result;
	}
	
    if (optionValue == "")
	{
		alert('Please select or enter a value for the "' + fieldLabel +'" field.');
		formField.focus();
		result = false;
		return result;
	}
	
	return result;
}

function validRequiredDropDownNoMsg(formField,fieldLabel)
{
	var result = true;
	
	var optionValue = formField.options[formField.selectedIndex].value;
	
	//alert('this is the selected value for the "' + fieldLabel +'" field.' + ' ->' + optionValue);
	
	if (optionValue == "none")
	{
		//alert('Please select or enter a value for the "' + fieldLabel +'" field.');
		//formField.focus();
		result = false;
		return result;
	}
	
    if (optionValue == "")
	{
		//alert('Please select or enter a value for the "' + fieldLabel +'" field.');
		//formField.focus();
		result = false;
		return result;
	}
	
	return result;
}

function allDigits(str)
{
	return inValidCharSet(str,"0123456789");
}

function inValidCharSet(str,charset)
{
	var result = true;

	// Note: doesn't use regular expressions to avoid early Mac browser bugs	
	for (var i=0;i<str.length;i++)
		if (charset.indexOf(str.substr(i,1))<0)
		{
			result = false;
			break;
		}
	
	return result;
}

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

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

function validEmail(inEmail) {

	var isValid;
	
	CoreService.validEmail(
		inEmail,
		{
			callback: function(outIsValid) {
				isValid = outIsValid;
			},
			async: false
		}
	);		

	return isValid;
}

function validEmailNoDatabase(inEmail) {

	var isValid;
	
	CoreService.validEmailNoDatabase(
		inEmail,
		{
			callback: function(outIsValid) {
				isValid = outIsValid;
			},
			async: false
		}
	);		

	return isValid;
}

function validCell(inCell) {

	var isValid;
	
	CoreService.validCell(
		inCell,
		{
			callback: function(outIsValid) {
				isValid = outIsValid;
			},
			async: false
		}
	);		

	return isValid;
}

function validUsername(inUsername) {

	var isValid;
	
	CoreService.validUsername(
		inUsername,
		{
			callback: function(outIsValid) {
				isValid = outIsValid;
			},
			async: false
		}
	);		

	return isValid;
}