<!--
/*
   -- Updated 8/25/10 PFJ to support current required / non-required fields in marketing forms, add radio button validation function
   -- UPDATED 4/29/09 PFJ to support new longer TLDs (.info, .museum, etc)
   -- current max TLD length is 6 char 
   -- to update, search for TLD in code below
*/

function checkfield(echoForm) {
var message = "";

if (echoForm.google_lp) {


	if (echoForm.fname.value == "") {message += "\n  - First Name";}
	if (echoForm.lname.value == "") {message += "\n  - Last Name";}
/*
		if (echoForm.location[0].checked) {
			if (echoForm.company.value == "") {message += "\n  - Company";}
			if (echoForm.title.value == "") {message += "\n  - Title";}
		}
*/		
	if (!emailCheck(echoForm.email.value)) {message += "\n  - Email Address";}		
//	if (echoForm.address1.value == "") {message += "\n  - Address";}
//	if (echoForm.city.value == "") {message += "\n  - City";}
	if (echoForm.state.value == "") {message += "\n  - State";}
	if (echoForm.zip.value == "") {message += "\n  - Zip";}
	if (echoForm.country.value == "") {message += "\n  - Country";}
	if (echoForm.phone.value == "") {message += "\n  - Phone";}
	if (getRadioButtonValue (echoForm.interest) == "") {message += "\n  - Training Interest";}
	if (echoForm.PrimaryInterest.value == "0") {message += "\n  - Primary Training Focus";}
}

if (message != "") {
		if (message != "") {message = "The following fields require valid entries: " + message;}
		alert(message);
		return false;
		}	
return true;
}


function getRadioButtonValue (radio)
{  
   var result = ""; 
   for (var i = 0; i < radio.length; i++) {   
   if (radio[i].checked) {
   result =  radio[i].value;
   break 
   }
    }
    return result
}

function emailCheck(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>6) {
   // the address must end in a two letter or three letter word.
   /* alert("The address must end in a 3 to 6 letter domain (TLD), 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;
}

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