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

	// Start ------->
	if (!validRequired(theForm.Name,"Name"))
		return false;

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

	// <--------- End
	
	return true;
}

var newwindow = ''
function popitup(url) {
if (newwindow.location && !newwindow.closed) {
    newwindow.location.href = url; 
    newwindow.focus(); } 
else { 
    newwindow=window.open(url,'htmlName','width=500,height=260,resizable=0,scrollbars=1');} 
}


function tidy() {
if (newwindow.location && !newwindow.closed) { 
   newwindow.close(); } 
}

 function openAbout2(link) {
 TextPopUp = window.open(link,'_popup','toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=1,resizable=1,width=840,height=645,left=10,top=5')
 }

 <!--
 function openAbout(link) {
 TextPopUp = window.open(link,'_popup','toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=1,resizable=0,width=500,height=400,left=20,top=5')
 }
 // -->

//-->