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('The item highlighted in red requires completion.');
		document.getElementById(fieldLabel).style.color = "red";
		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 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 validInt(formField,fieldLabel,required)
{
	var result = true;

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

function validPWD(formField,fieldLabel,required)
{
	var result = true;
	
	if (required && !validRequired(formField,fieldLabel))
		result = false;
		
	if (result)
	{
		var myPwd = formField.value;
		if(myPwd.length < 6)
		{
			alert('Your Password has to be a minimum of 6 characters');
			formField.focus();
			result = false;
		}
	}
	
	return result;
}

function pwdMatch(formField,formField2,fieldLabel,fieldLabel2,type,required)
{
	var result = true;
	
	if (required && !validRequired(formField,fieldLabel))
		result = false;
  
 	if (result)
 	{
		var pwdInt = formField.value;
		var pwdSec = formField2.value;
		
		if(pwdInt != pwdSec)
		{
			alert('Your '+ type +' do no match, please try again');
			document.getElementById(fieldLabel).style.color = "red";
			document.getElementById(fieldLabel2).style.color = "red";
			formField.focus();
			result = false;
		}
	}
	return result;
}

function emailMatch(formField, formField2, fieldLabel, fieldLabel2, type, required) {
    var result = true;

    if (required && !validRequired(formField, fieldLabel))
        result = false;

    if (result) {
        var pwdInt = formField.value;
        var pwdSec = formField2.value;

        if (pwdInt != pwdSec) {
            alert('Your ' + type + ' do no match, please try again');
            document.getElementById(fieldLabel).style.color = "red";
            document.getElementById(fieldLabel2).style.color = "red";
            formField.focus();
            result = false;
        }
    }
    return result;
}

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

	if (required && !validRequired(formField,fieldLabel))
		result = false;
  
 	if (result)
 	{
 		var elems = formField.value.split("/");
 		
 		result = (elems.length == 2); // should be three components
 		
 		if (result)
 		{
 			var month = parseInt(elems[0]);
 			var year = parseInt(elems[1]);
			result = allDigits(elems[0]) && (month > 0) && (month < 13) &&
					 allDigits(elems[1]) && ((elems[1].length == 2) || (elems[1].length == 4));
 		}
 		
  		if (!result)
 		{
 			alert('Please enter a date in the format MM/YYYY for the "' + fieldLabel +'" field.');
			formField.focus();		
		}
	} 
	
	return result;
}

function revert(e) {
	setTimeout("origC('"+e+"')",5000)
}
function origC(e) {
	document.getElementById(e).style.color = "#5f385c";
}
function revertGift(e) {
	setTimeout("origGiftC('"+e+"')",5000)
}
function origGiftC(e) {
	document.getElementById(e).style.color = "#de6003";
}
function validDates(d, m, fieldLabel)
{
	var result = true;
	
	var day = parseInt(d);
	var month = parseInt(m);
	
	if ((month == 4 && day > 30) || (month == 6 && day > 30) || (month == 9 && day > 30) || (month == 11 && day > 30))
	{
		alert(fieldLabel);
		result = false;
	}
	else if (month == 2 && day > 28)
	{
		alert(fieldLabel);
		result = false;
	}
	
	return result;
}