//beginning of checkRequired
function checkRequired(objName,objLabel,msg) {
	var strMsg = "You are required to enter info in";
	var strValue = objName.value;
	var strlabel = objLabel;

	if ( (msg != null) && (msg.length > 0) ) {
		strMsg = msg;
	}

    while(strValue.charAt(strValue.length-1)==" ") {
        strValue=strValue.substring(0,strValue.length-1);
    }

	if (strValue=="") {
		if (strlabel.length > 0) {
			strMsg = strMsg + ": " + strlabel;
		}

		alert(strMsg);
    	objName.value = "" ;

    	if (objName.type != "hidden") {
			objName.focus();
		}

		return true;
	}
	else {
		return false;
	}
}
//end of checkRequired

//beggining of check email function
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=1;

	/* 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("Ths username contains invalid characters.");
			return false;
	   	}
	}

	for (i=0; i<domain.length; i++)
	{
		if (domain.charCodeAt(i)>127)
		{
			alert("Ths domain name contains invalid characters.");
			return false;
	    }
	}

	// 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.  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("The domain name 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("This address is missing a hostname!");
		return false;
	}

	// If we've gotten this far, everything's valid!
	return true;
}
//end of check email

//beginning of checkdate functions
function checkdate(objName) {
	var datefield = objName;
	if (chkdate(objName) == false)
	{
		datefield.select();
		alert("This date is invalid.  Please try again.");
		datefield.focus();
		return false;
	}
	else
	{
		return true;
   	}
}

function chkdate(objName) {
	var strDatestyle = "US"; //United States date style
	//var strDatestyle = "EU";  //European date style
	var strDate;
	var strDateArray;
	var strDay;
	var strMonth;
	var strYear;
	var intday;
	var intMonth;
	var intYear;
	var booFound = false;
	var datefield = objName;
	var strSeparatorArray = new Array("-"," ","/",".");
	var intElementNr;
	var err = 0;
	var strMonthArray = new Array(12);
	strMonthArray[0] = "Jan";
	strMonthArray[1] = "Feb";
	strMonthArray[2] = "Mar";
	strMonthArray[3] = "Apr";
	strMonthArray[4] = "May";
	strMonthArray[5] = "Jun";
	strMonthArray[6] = "Jul";
	strMonthArray[7] = "Aug";
	strMonthArray[8] = "Sep";
	strMonthArray[9] = "Oct";
	strMonthArray[10] = "Nov";
	strMonthArray[11] = "Dec";
	strDate = datefield.value;
	if (strDate.length < 1)
	{
		return true;
	}
	//added by DED
	if (strDate.length < 6)
	{
		return false;
	}

	for (intElementNr = 0; intElementNr < strSeparatorArray.length; intElementNr++)
	{
		if (strDate.indexOf(strSeparatorArray[intElementNr]) != -1)
		{
			strDateArray = strDate.split(strSeparatorArray[intElementNr]);
			if (strDateArray.length != 3)
			{
				err = 1;
				return false;
			}
			else
			{
				strDay = strDateArray[0];
				strMonth = strDateArray[1];
				strYear = strDateArray[2];
			}
			booFound = true;
		}
	}
	if (booFound == false)
	{
		if (strDate.length>5)
		{
			strDay = strDate.substr(0, 2);
			strMonth = strDate.substr(2, 2);
			strYear = strDate.substr(4);
		}
	}
	if (strYear.length == 2)
	{
		strYear = '20' + strYear;
	}

	// US style
	if (strDatestyle == "US")
	{
		strTemp = strDay;
		strDay = strMonth;
		strMonth = strTemp;
	}
	intday = parseInt(strDay, 10);
	if (isNaN(intday))
	{
		err = 2;
		return false;
	}
	intMonth = parseInt(strMonth, 10);
	if (isNaN(intMonth))
	{
		for (i = 0;i<12;i++)
		{
			if (strMonth.toUpperCase() == strMonthArray[i].toUpperCase())
			{
				intMonth = i+1;
				strMonth = strMonthArray[i];
				i = 12;
		    }
		}
		if (isNaN(intMonth))
		{
			err = 3;
			return false;
		}
	}
	intYear = parseInt(strYear, 10);
	if (isNaN(intYear))
	{
		err = 4;
		return false;
	}
	if (intMonth>12 || intMonth<1)
	{
		err = 5;
		return false;
	}
	if ((intMonth == 1 || intMonth == 3 || intMonth == 5 || intMonth == 7 || intMonth == 8 || intMonth == 10 || intMonth == 12) && (intday > 31 || intday < 1))
	{
		err = 6;
		return false;
	}
	if ((intMonth == 4 || intMonth == 6 || intMonth == 9 || intMonth == 11) && (intday > 30 || intday < 1))
	{
		err = 7;
		return false;
	}
	if (intMonth == 2)
	{
		if (intday < 1)
		{
			err = 8;
			return false;
		}
		if (LeapYear(intYear) == true)
		{
			if (intday > 29)
			{
				err = 9;
				return false;
			}
		}
		else
		{
			if (intday > 28)
			{
				err = 10;
				return false;
			}
		}
	}
	/*  take this out...  no need to reformat the date...  DED
	if (strDatestyle == "US")
	{
		datefield.value = strMonthArray[intMonth-1] + " " + intday+" " + strYear;
	}
	else
	{
		datefield.value = intday + " " + strMonthArray[intMonth-1] + " " + strYear;
	}*/
	return true;
}

function LeapYear(intYear)
{
	if (intYear % 100 == 0)
	{
		if (intYear % 400 == 0) { return true; }
	}
	else
	{
		if ((intYear % 4) == 0) { return true; }
	}
	return false;
}

function doDateCheck(from, to)
{
	//alert("Inside doDateCheck");
	if (Date.parse(from.value) <= Date.parse(to.value))
	{
		return true;
	}
	else
	{
		alert("End date must occur after the Start date.");
		return false;
   	}
}

function MoreThanDay(from, to,strMsg)
{
	//alert("Inside MoreThanDay");

	//alert("date parse from: " + Date.parse(from.value));
	//alert("date parse to: " + Date.parse(to.value));
	var difference = Math.abs(Date.parse(from.value) - Date.parse(to.value));
	difference /= (1000*3600*24) // milliseconds/hours/days
	//alert("difference= " + difference );
	if (difference > 0)
	{
		alert(strMsg);
		return true;
	}
	else
	{
		//alert("dates less than 1 day apart");
		return false;
   	}

}
//end of check date functions


	function validateEmail()
	{

		 if (checkRequired(document.TheForm.FirstName, "", "Please enter your first name"))
		{
			return false;
		}
		else if (checkRequired(document.TheForm.LastName, "", "Please enter your last name"))
		{
			return false;
		}
		else if (checkRequired(document.TheForm.Address, "", "Please enter your address"))
		{
			return false;
		}
	     else if (checkRequired(document.TheForm.City, "", "Please enter your city"))
		{
		 	return false;
		}
		else if( document.TheForm.State.options[document.TheForm.State.selectedIndex].value.length == 0){
			alert('Please enter your state');
			return false;
		}
	     else if (checkRequired(document.TheForm.Zip, "", "Please enter your postal code"))
		{
		 	return false;
		}
		   else if (checkRequired(document.TheForm.Phone, "", "Please enter your phone number"))
		{
		 	return false;
		}
		else if (checkRequired(document.TheForm.Email, "", "Please enter your email address"))
		{
			return false;
		}
		else if (checkRequired(document.TheForm.PurchasedFrom, "", "Please enter who you purchased from "))
		{
			return false;
		}
		else if( document.TheForm.PurchasedFrom.options[document.TheForm.PurchasedFrom.selectedIndex].value.length == 0){
			alert('Please choose how you purchased our product from');
			return false;
		}
		else if (checkRequired(document.TheForm.DPurchased, "", "Please enter the purchase date"))
		{
			return false;
		}
		else if (checkRequired(document.TheForm.DInstalled, "", "Please enter the installation date"))
		{
			return false;
		}
		else if (!checkdate(document.TheForm.DPurchased)){
			return false;
		}
		else if (!checkdate(document.TheForm.DInstalled)){
			return false;
		}
		else if (!emailCheck(document.TheForm.Email.value)){
			return false;
		}
	}

	function changeLabelText(){
		var ddVal = document.TheForm.PurchasedFrom.options[document.TheForm.PurchasedFrom.selectedIndex].value;
		if(ddVal.length == 0){
			document.getElementById('mydiv2').innerHTML = 'Purchased Through';
		}
		else {
			if(ddVal == 5){
				document.getElementById('mydiv2').innerHTML = 'Cambria Certified Installer Name';
			}
			else{
				document.getElementById('mydiv2').innerHTML = document.TheForm.PurchasedFrom.options[document.TheForm.PurchasedFrom.selectedIndex].text + ' Name';
			}
		}
	}