function checkLen(o, next) {
	if ( o.value.length == o.size ) next.focus();
	return true;
}

var validateMsg = "";
var validateCount = 0;
var petRadioClicked = false;
var gateRadioClicked = false;

function allReqVars(fs) {
	var msg = "";
	var len = fs.length;

	for ( var i = 0; i < len; i++ ) {
		msg += fs.elements[i].name + ": " + fs.elements[i].value + "\n";
//		msg += eval(fs + ".elements[" + i + "].name") + ": " + eval(fs + ".elements[" + i + "].value") + "\n";
	}
	return msg;
}

function formatPhoneNumber(n) {

	var s = "";

// Get digits from phone number

	for ( var i = 0; i < n.value.length; i++ ) {
		if ( n.value.charAt(i) >= '0' && n.value.charAt(i) <= '9' ) {
			s = s.concat(n.value.charAt(i));
		}
	}

// If 10 digits long, format (npa) nxx-line

	if ( s.length == 10 ) {
/*		n.value = "(" + s.substr(0,3) + ") " + s.substr(3,3) + "-" + s.substr(6); */
		n.value = s.substr(0,3) + "-" + s.substr(3,3) + "-" + s.substr(6);
	}
}

function validateRequest(f) {
	var pattern = "";
	validateMsg = "";
	validateCount = 0;
	focusSet = 0;

// Check that all fields are populated correctly
	
	if ( trim(f.name.value) == "" ) {
		validateMsg = "    Name\n";
		validateCount += 1;
		f.name.focus();
		focusSet = 1;
	}
	if ( trim(f.phone.value) == "" ) {
		validateMsg += "    Phone Number\n";
		validateCount += 1;
		if ( ! focusSet ) {
			f.phone.focus();
			focusSet = 1;
		}
	}
	if ( trim(f.email.value) == "") {
		validateMsg += "    E-mail Address\n";
		validateCount += 1;
		if ( ! focusSet ) {
			f.email.focus();
			focusSet = 1;
		}
	}


// Announce any missing fields

	if ( validateCount > 0 ) {
		var instructions = "Please complete the following field";
		if ( validateCount > 1 ) {
			instructions += "s:\n";
		}
		else {
			instructions += ":\n";
		}
		alert( instructions + validateMsg );
		return false;
	}

// Validate e-mail if provided

	if (trim(f.email.value) != "" ) {
		if (!validateEmail(f.email)) return false;
	}

// Validate phone number if provided

	if (trim(f.phone.value) != "") {
		var phoneDigits = getDigits(f.phone.value);
		var phoneLen = phoneDigits.length;
		if (phoneLen != 10) {
			msg = "The phone number you provided is\n" +
				phoneLen + " digits long. Is this correct?";
			if (phoneLen < 10)
				msg += "\n\nPlease include your area code.";
			return confirm(msg);
		}
	}
	return true;
}

function getDigits(str) {

	var digits = new String("");

	for ( var i = 0; i < str.length; i++ ) {
		if ( str.charAt(i) >= '0' && str.charAt(i) <= '9' ) {
			digits = digits.concat(str.charAt(i));
		}
	}
	return digits;
}

// ============================================================
// Function to check if character is whitespace
// ============================================================

function isWhitespace(c) {
    whitespace = " \t\n\r";
    if (whitespace.indexOf(c) < 0) {
	return false;
    }
    return true;
}

// ============================================================
// Function to check if whitespace is embedded in string
// ============================================================

function hasWhitespace(s) {
   var sBuff = trim(s);
   var bLength = sBuff.length;

// Check for embedded whitespace

    for (var sPos = 0; sPos < bLength; sPos++) {
	if (isWhitespace(sBuff.charAt(sPos))) return true;
    }
    return false;
}

// ============================================================
// Function to remove leading and trailing whitespace
// ============================================================

function trim(s) {

   var sBuff = s;
   var sLength = s.length;

// Remove leading whitespace

    for (var sPos = 0; sPos < sLength; sPos++) {
	if (!isWhitespace(s.charAt(sPos))) {
	    sBuff = s.substr(sPos);
	    break;
	}
    }

// Remove trailing whitespace

    var bLength = sBuff.length;
    for (sPos = bLength - 1; sPos >= 0; sPos--) {
	if (isWhitespace(sBuff.charAt(sPos))) {
	    return sBuff.substr(0, (sPos + 1));
	    break;
	}
    }
    return sBuff;
}

function formatSSN(ssnInput) {

	var digits = getDigits(ssnInput.value);

	if (digits.length == 0 && ssnInput.length != 0) {
		alert("Please enter a valid Social Security Number.");
		ssnInput.focus();
		return false;
	}

// If 9 digits long, format ###-##-####

	if ( digits.length == 9 ) {
		ssnInput.value = digits.substr(0,3) + "-" + digits.substr(3,2) + "-" + digits.substr(5);
	}
	return true;
}

function formatZipCode(zipInput) {

	var digits = getDigits(zipInput.value);

	if (digits.length == 0 && zipInput.value.length > 0) {
		alert("Please enter a valid US Zip Code.");
		zipInput.focus();
		return false;
	}
	if (digits.length != 0 && digits.length != 5 && digits.length != 9) {
		alert("US Zip Code should be 5 or 9 digits long.");
		zipInput.focus();
		return false;
	}

// If 9 digits long, format #####-####

	if ( digits.length == 9 ) {
		zipInput.value = digits.substr(0,5) + "-" + digits.substr(5);
	}
	return true;
}

function formatPhoneNumber(phoneInput) {

	var s = "";
	var digits = getDigits(phoneInput.value);

	if (digits.length == 0 && phoneInput.value.length > 0) {
		alert("Please enter a valid Phone Number.");
		phoneInput.focus();
		return false;
	}

// Require area code (North American standard)

	if ( digits.length < 10 && digits.length != 0) {
		alert("Please provide area code and phone number");
		phoneInput.focus();
		return false;
	}

// If 10 digits long, format (npa) nxx-line

	if ( digits.length == 10 ) {
		phoneInput.value = digits.substr(0,3) + "-" + digits.substr(3,3) + "-" + digits.substr(6);
	}
	return true;
}

function validateDate(t) {
    var dateChars  = "01234567890/-";
    var s = trim(t.value);

    if (s.length == 0) return false;
    if (s.length != 10 && s.length != 0) {
	alert("Invalid date format:  Use the form mm-dd-yyyy or mm/dd/yyyy, with no spaces.");
	t.focus();
	return false;
    }
    for (var i = 0; i < s.length; i++) {
	if (dateChars.indexOf(s.charAt(i)) < 0) {
	    alert("Invalid characters in date:  Use only digits and slashes in the form mm-dd-yyyy or mm/dd/yyyy.");
	    t.focus();
	    return false;
	}
    }
    var yr = s.substr(6, 4) - 0;
    var month = s.substr(0, 2) - 0;
    var day  = s.substr(3, 2) - 0;
    if (yr < 1900) {
	alert("Check year:  Minimum allowed is 1900.");
	t.focus();
	return false;
    }
    if (month < 1 || month > 12) {
	alert("Invalid month: Should be between 01 and 12.");
	t.focus();
	return false;
    }
    switch(month) {
	case  1 : 
	case  3 : 
	case  5 : 
	case  7 : 
	case  8 : 
	case 10 : 
	case 12 : if (day > 0 && day <= 31) return true; break;
	case  4 : 
	case  6 : 
	case  9 : 
	case 11 : if (day > 0 && day <= 30) return true; break;
	default : if ((yr % 4 == 0 && day <= 29) || (yr % 4 != 0 && day <= 28)) return true; break;
    }
    alert("Check day " + day + ": Should be between 1 and appropriate End-of-Month (30, 31, 28 or 29).");
    t.focus();
    return false;
}

function validateEmail(emailInput) {
	var email_pattern = /^[a-zA-Z0-9_\-\.]+@[a-zA-Z0-9_\-\.]+\.[a-zA-Z]+$/;
	if((result = email_pattern.exec(emailInput.value)) == null) {
		alert("Please check for a valid e-mail address format\nExamples: john@yahoo.com, jane.doe@my-isp.net");
		emailInput.focus();
		return false;
	}
	return true;	
}

/*

<nobr>
handle<span style="font-size:1px;">
</span>&#064;<span style="font-size:1px;">
</span>domain<span style="font-size:1px;">
</span>&#046;<span style="font-size:1px;">
</span>com
</nobr>

OR

<script language="javascript">
<!--
function buildEmail(a, domain, handle) {
	a.href = "mailto:" + handle + "@" + domain;
}
//-->
</script>
<a
href="javascript:void(0)"
onMouseOver="buildEmail(this, 'domain.ext', 'handle');"
class="copyright">
 	<nobr>
	handle<span style="font-size:1px;">
	</span>&#064;<span style="font-size:1px;">
	</span>domain<span style="font-size:1px;">
	</span>&#046;<span style="font-size:1px;">
	</span>ext</nobr>
</a>

<p><img src="imgcounter.php?filename=home&color=000000">
CAVEAT - Verify:
Perms 446 or 447
Path /imgcounter.php, relative or absolute
*/