//<!-- Original:  Cyanide_7 (leo7278@hotmail.com) -->
//<!-- Web Site:  http://members.xoom.com/cyanide_7 -->

//<!-- This script and many more are available free online at -->
//<!-- The JavaScript Source!! http://javascript.internet.com -->

//<!-- Begin
//Tis is auto tab
var isNN = (navigator.appName.indexOf("Netscape")!=-1);

function reviewValidator(formname) {
	if (formname.user_name.value=="") {
		alert("Please include your name");
		formname.user_name.focus();
		return false;
	}
	if (formname.user_email.value=="") {
		alert("Please include your e-mail address");
		formname.user_email.focus();
		return false;
	}
	if (formname.user_title.value=="") {
		alert("Please include the name of the establishment you wish to review.");
		formname.user_title.focus();
		return false;
	}
	if (!emailCheck(formname.user_email.value)) {
		formname.user_email.focus();
		return false;
	 }
}

function autoTab(input,len, e) {
	var keyCode = (isNN) ? e.which : e.keyCode; 
	var filter = (isNN) ? [0,8,9] : [0,8,9,16,17,18,37,38,39,40,46];
	/*if(input.value.length >= len && !containsElement(filter,keyCode)) {
	input.value = input.value.slice(0, len);
	input.form[(getIndex(input)+1) % input.form.length].focus();*/
	if(document.getElementById(input).value.length>=len && !containsElement(filter,keyCode)){
	document.getElementById(input).value = document.getElementById(input).value.slice(0, len);
	document.getElementById(input).form[(getIndex(document.getElementById(input))+1) % document.getElementById(input).form.length].focus();
	document.getElementById(input).form[(getIndex(document.getElementById(input))+1) % document.getElementById(input).form.length].select();
}

function containsElement(arr, ele) {
	var found = false, index = 0;
	while(!found && index < arr.length)
	if(arr[index] == ele)
		found = true;
	else
		index++;
	return found;
}

function getIndex(input) {
	var index = -1, i = 0, found = false;
	while (i < input.form.length && index == -1)
	if (input.form[i] == input)index = i;
	else i++;
	return index;
	}
	return true;
}
//  End -->

function emailValidate(emailIn){
	if(emailIn.value.length==0){
		return (false);
	}else{
		with(emailIn){
			apos=emailIn.value.indexOf("@");
			dotpos=emailIn.value.lastIndexOf(".");
			if (apos<1||dotpos-apos<2){
				return (false);
			}else{
				return (true);
			}
		}
	}
}

function emailCheck (emailStr) {

	/* The following variable tells the rest of the function whether or not
	to verify that the address ends in a two-letter country or well-known
	TLD.  1 means check it, 0 means don't. */
	
	var checkTLD=0;
	
	/* The following is the list of known TLDs that an e-mail address must end with. */
	
	var knownDomsPat=/^(com|net|org|edu|int|mil|gov|arpa|biz|aero|name|coop|info|pro|museum)$/;
	
	/* The following pattern is used to check if the entered e-mail address
	fits the user@domain format.  It also is used to separate the username
	from the domain. */
	
	var emailPat=/^(.+)@(.+)$/;
	
	/* The following string represents the pattern for matching all special
	characters.  We don't want to allow special characters in the address. 
	These characters include ( ) < > @ , ; : \ " . [ ] */
	
	var specialChars="\\(\\)><@,;:\\\\\\\"\\.\\[\\]";
	
	/* The following string represents the range of characters allowed in a 
	username or domainname.  It really states which chars aren't allowed.*/
	
	var validChars="\[^\\s" + specialChars + "\]";
	
	/* The following pattern applies if the "user" is a quoted string (in
	which case, there are no rules about which characters are allowed
	and which aren't; anything goes).  E.g. "jiminy cricket"@disney.com
	is a legal e-mail address. */
	
	var quotedUser="(\"[^\"]*\")";
	
	/* The following pattern applies for domains that are IP addresses,
	rather than symbolic names.  E.g. joe@[123.124.233.4] is a legal
	e-mail address. NOTE: The square brackets are required. */
	
	var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/;
	
	/* The following string represents an atom (basically a series of non-special characters.) */
	
	var atom=validChars + '+';
	
	/* The following string represents one word in the typical username.
	For example, in john.doe@somewhere.com, john and doe are words.
	Basically, a word is either an atom or quoted string. */
	
	var word="(" + atom + "|" + quotedUser + ")";
	
	// The following pattern describes the structure of the user
	
	var userPat=new RegExp("^" + word + "(\\." + word + ")*$");
	
	/* The following pattern describes the structure of a normal symbolic
	domain, as opposed to ipDomainPat, shown above. */
	
	var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$");
	
	/* Finally, let's start trying to figure out if the supplied address is valid. */
	
	/* Begin with the coarse pattern to simply break up user@domain into
	different pieces that are easy to analyze. */
	
	var matchArray=emailStr.match(emailPat);
	
	if (matchArray==null) {
	
	/* Too many/few @'s or something; basically, this address doesn't
	even fit the general mould of a valid e-mail address. */
	
	alert("Email address seems incorrect (check @ and .'s)");
	return false;
	}
	var user=matchArray[1];
	var domain=matchArray[2];
	
	// Start by checking that only basic ASCII characters are in the strings (0-127).
	
	for (i=0; i<user.length; i++) {
	if (user.charCodeAt(i)>127) {
	alert("Email address contains invalid characters.");
	return false;
		}
	}
	for (i=0; i<domain.length; i++) {
	if (domain.charCodeAt(i)>127) {
	alert("Email address contains invalid characters.");
	return false;
		}
	}
	
	// See if "user" is valid 
	
	if (user.match(userPat)==null) {
	
	// user is not valid
	
	alert("Email address doesn't seem to be valid.");
	return false;
	}
	
	/* if the e-mail address is at an IP address (as opposed to a symbolic
	host name) make sure the IP address is valid. */
	
	var IPArray=domain.match(ipDomainPat);
	if (IPArray!=null) {
	
	// this is an IP address
	
	for (var i=1;i<=4;i++) {
	if (IPArray[i]>255) {
	alert("Email address is invalid!");
	return false;
		}
	}
	alert("Valid");
	return true;
	}
	
	// Domain is symbolic name.  Check if it's valid.
	 
	var atomPat=new RegExp("^" + atom + "$");
	var domArr=domain.split(".");
	var len=domArr.length;
	for (i=0;i<len;i++) {
	if (domArr[i].search(atomPat)==-1) {
	alert("Email address does not seem to be valid.");
	return false;
		}
	}
	
	/* domain name seems valid, but now make sure that it ends in a
	known top-level domain (like com, edu, gov) or a two-letter word,
	representing country (uk, nl), and that there's a hostname preceding 
	the domain or country. */
	
	if (checkTLD && domArr[domArr.length-1].length!=2 && 
	domArr[domArr.length-1].search(knownDomsPat)==-1) {
	alert("The address must end in a well-known domain or two letter " + "country.");
	return false;
	}
	
	// Make sure there's a host name preceding the domain.
	
	if (len<2) {
	alert("Email address does not seem to be valid!");
	return false;
	}
	
	// If we've gotten this far, everything's valid!
	return true;
}

function isInt(str){
	var i = parseInt (str);

	if (isNaN (i)){
		return false;
	}

	i = i . toString();
	if (i != str){
		return false;
	}
	return true;
}
//Original:  Nannette Thacker
//http://www.shiningstar.net
//Taken from http://www.shiningstar.net/articles/articles/javascript/checkNumeric.asp?ID=AW
//Begin
function checkNumeric(objName,minval, maxval,comma,period,hyphen){
	//var numberfield = objName;
	if (chkNumeric(objName,minval,maxval,comma,period,hyphen) == false){
		//numberfield.select();
		//numberfield.focus();
		return false;
	}else{
		return true;
	}
}

function chkNumeric(objName,minval,maxval,comma,period,hyphen){
	// only allow 0-9 be entered, plus any values passed
	// (can be in any order, and don't have to be comma, period, or hyphen)
	// if all numbers allow commas, periods, hyphens or whatever,
	// just hard code it here and take out the passed parameters
	var checkOK = "0123456789" + comma + period + hyphen;
	var checkStr = objName;
	var allValid = true;
	var decPoints = 0;
	var allNum = "";

	for (i = 0;  i < checkStr.value.length;  i++){
		ch = checkStr.value.charAt(i);
		for (j = 0;  j < checkOK.length;  j++)
		if (ch == checkOK.charAt(j))
		break;
		if (j == checkOK.length){
			allValid = false;
			break;
		}
		if (ch != ",")
		allNum += ch;
	}

	// set the minimum and maximum
	var chkVal = allNum;
	var prsVal = parseInt(allNum);
	if (!allValid){	
		alertsay = "Please enter only these values \""
		alertsay = alertsay + checkOK + "\" in the \"" + checkStr.name + "\" field."
		//alert(alertsay);
		return (false);
	}else if (chkVal != "" && !(prsVal >= minval && prsVal <= maxval)){
		alertsay = "Please enter a value greater than or "
		alertsay = alertsay + "equal to \"" + minval + "\" and less than or "
		alertsay = alertsay + "equal to \"" + maxval + "\" in the \"" + checkStr.name + "\" field."
		//alert(alertsay);
		return (false);
	}else{
		return (true);
	}
}

//http://www.webdeveloper.com/forum/showthread.php?t=95583
function validZip(zip){
	if (zip.match(/^[0-9]{5}$/)) {
		return true;
	}
	zip=zip.toUpperCase();
	if (zip.match(/^[A-Z][0-9][A-Z][0-9][A-Z][0-9]$/)) {
		return true;
	}
	if (zip.match(/^[A-Z][0-9][A-Z].[0-9][A-Z][0-9]$/)) {
		return true;
	}
	//alert('*** Bad ZIP.');
	return false;
}

function clearField(theTextField){
	var theString;
	theString=theTextField.value;
	theString=theString.replace(/ /gi, "");
	if(theTextField.value==theTextField.defaultValue){
		theTextField.value="";
	}else if(theString.length==0){
		theTextField.value=theTextField.defaultValue;
	}
 }