function checkEmpty() {
	if (document.Form.FirstName.value == "")     {
		document.Form.FirstName.focus();
		return ('First Name');
		 }
	else if (document.Form.LastName.value == "") {
		document.Form.LastName.focus();
		return ('Last Name'); 
		}
	else if (document.Form.Address1.value == "")  {
		document.Form.Address1.focus(); 
		return ('Address1');    
		}
	else if (document.Form.City.value == "") 	   {
		document.Form.City.focus(); 
		return ('City');  
		}
	else if (document.Form.State.options[document.Form.State.selectedIndex].value == "50") 	{
  		document.Form.State.focus();
		return ('State');
		}
	else if (document.Form.Zip.value == ""){
		document.Form.Zip.focus();  
		return ('Zip Code');
		}
	//else if (document.Form.Email.value == "") 	 {
	//	document.Form.Email.focus(); 
	//	return ('Email');   
	//	}	
	else 								 
		return 'None';
	}
function validateFields(Form) {

	// Check fields for emptiness		
	var pass = 1;
	var emptyfields = checkEmpty();
	if (emptyfields != 'None') {
		alert('You have left the field "'+emptyfields+'" empty.\nPlease fill it before continuing.');
		pass = 0;
		return (false);
	}	
		
	if (pass == 1) {
		var validZipState = checkValidZipState(document.Form.Zip.value, document.Form.State.options[document.Form.State.selectedIndex].value);
		if (validZipState == false) {
			alert("Due to the extreme nature of some of our products, we are prohibited from shipping to the following States & Zip Codes: \n The entire States of ARIZONA, KENTUCKY, and the northern portion of FLORIDA (32013, 32066, 32300-32699, and 34400-34499) ");
			pass = 0;
			return (false);
		}
	}
}
function checkValidZipState(vZip,vState){	
	var badStates = "54,69";
	var badZips = '32013,32066';
	var i;
	for (i=32300;i<=32699;i++) {
		badZips =  badZips + ',' + i.toString();
	}
	for (i=34400;i<=34499;i++) {
		badZips =  badZips + ',' + i.toString();
	}	
	var locInString = badStates.search(vState);
	if(locInString!=-1){	
		return false;
	}
	locInString = badZips.search(vZip);
	if(locInString!=-1){	
		return false;
	}
	return true;
}
/* 1.1.2: Fixed a bug where trailing . in e-mail address was passing
            (the bug is actually in the weak regexp engine of the browser; I
            simplified the regexps to make it work).
   1.1.1: Removed restriction that countries must be preceded by a domain,
            so abc@host.uk is now legal.  However, there's still the 
            restriction that an address must end in a two or three letter
            word.
     1.1: Rewrote most of the function to conform more closely to RFC 822.
     1.0: Original  */

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

<!-- Begin
function checkEmail (emailStr) {
/* 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]

// See if "user" is valid 
if (user.match(userPat)==null) {
    // user is not valid
    alert("The username 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("Destination IP address is invalid!")
		return false
	    }
    }
    return true
}

// Domain is symbolic name
var domainArray=domain.match(domainPat)
if (domainArray==null) {
	alert("The domain name doesn't seem to be valid.")
    return false
}

/* domain name seems valid, but now make sure that it ends in a
   three-letter word (like com, edu, gov) or a two-letter word,
   representing country (uk, nl), and that there's a hostname preceding 
   the domain or country. */

/* Now we need to break up the domain to get a count of how many atoms
   it consists of. */
var atomPat=new RegExp(atom,"g")
var domArr=domain.match(atomPat)
var len=domArr.length
if (domArr[domArr.length-1].length<2 || 
    domArr[domArr.length-1].length>3) {
   // the address must end in a two letter or three letter word.
   alert("The address must end in a three-letter domain, or two letter country.")
   return false
}

// Make sure there's a host name preceding the domain.
if (len<2) {
   var errStr="This address is missing a hostname!"
   alert(errStr)
   return false
}

// If we've gotten this far, everything's valid!
return true;
}
//  End -->