// //////////////////////////////////////////////////////////////////////////////

// Customer account validation

// //////////////////////////////////////////////////////////////////////////////


function ValidateAccount(f)
	{

	    if ((f.firstname.value == "") || (f.lastname.value == "")) {
	        alert('Please enter your first name and last name');
	        return false;
	    }

	    else if (f.email.value == "") {
	        alert('Please enter your email address');
	        return false;
	    }


	    else if (f.password.value == "") {
	        alert('Please enter your password');
	        return false;
	    }




	    else {
	        return true;
	    }
		
	}



function ValidateRegistration(f)
	{

	    if ((f.firstname.value == "") || (f.lastname.value == "")) {
	        alert('Please enter your first name and last name');
	        return false;
	    }

	    else if (f.email.value == "") {
	        alert('Please enter your email address');
	        return false;
	    }

	    else if (f.password.value == "") {
	        alert('Please enter your password');
	        return false;
	    }

	    else {
	        return true;
	    }
		
	}


function ValidateLogin(f)
	{
	    if (!ValidateEmail(f.email.value)) {
	        alert('Please make sure you have entered a valid email address');
	        f.email.focus();
	        return false;
	    }

	    else 
	        return true;
	    
	
	}



function ValidateFriend(f)
	{

	    if ((f.yourfirstname.value == "") || (f.yourlastname.value == "")) {
	        alert('Please enter your first name and last name');
	        return false;
	    }

	    else if (f.youremail.value == "") {
	        alert('Please enter your email address');
	        return false;
	    }



	    else if ((f.firstname.value == "") || (f.lastname.value == "")) {
	        alert("Please enter your friend's first name and last name");
	        return false;
	    }

	    else if (f.email.value == "") {
	        alert("Please enter your friend's email address");
	        return false;
	    }

	    else {
	        return true;
	    }
		
	}

// //////////////////////////////////////////////////////////////////////////////

// Checkout validation

// //////////////////////////////////////////////////////////////////////////////





function ValidateCheckoutStart(f)
	{


	    if (f.email.value == "") {
	        alert('Please enter your email address');
	        f.email.focus();
	        return false;
	    }

	    else if (ValidateEmail(f.email.value) == false) {
	        alert("Please enter a valid email address");
	        f.email.focus();
	        return false;
	    }

	    else if (f.password.value == "" && f.existing[1].checked == true) {
	        alert('Please enter your password');
	        f.password.focus();
	        return false;
	    }


	    else
	        return true;
	    
		
	}


function ValidateCheckoutAccount(f)
	{

	    if ((f.firstname.value == "") || (f.lastname.value == "")) {
	        alert('Please enter your first name and last name');
	        return false;
	    }



	    else if (f.password.value == "") {
	        alert('Please enter a password for your account');
	        return false;
	    }




	    else {
	        return true;
	    }
		
	}


function ValidateCheckoutAddress(f)
	{

	    if ((f.addressline1.value == "") || (f.city.value == "") || (f.postcode.value == "")) {
	        alert('Please make sure you have entered a valid address, including city and postcode');
	        return false;
	    }

	    else {
	        return true;
	    }
	
	}


function ValidateCheckout (f)
    {
        if (f.invoicepaymentmethod.value == 0) {
            alert('Please select the payment method');
            return false;
        }
        else if (f.cardnumber.value == "") {
            alert('Please enter your credit or debit card number');
            return false;
        }
        else if ((f.cardnumber.value.length != 15) && (f.cardnumber.value.length != 16) && (f.cardnumber.value.length != 18)) {
            alert('Please make sure you enter all the digits of your credit or debit card number');
            return false;
        }
        else if (f.cardholdername.value == "") {
            alert('Please enter the card holder name');
            return false;
        }
        else if ((f.cardsecuritynumber.value.length < 3) || (f.cardsecuritynumber.value.length > 4)) {
            alert('Please enter the security number\nFor most cards this is the last 3 digits on the BACK of the card at the top of the signature strip\nFor American Express it is the 4 digits printed on the FRONT of the card above the account number');
            return false;
        }
        /*
        else if  (f.cardexpiry.value == "")
        {
        alert('Please enter the card expiry date');
        return false;
        }
        */

        else {
            return true;
        }

}

// //////////////////////////////////////////////////////////////////////////////

// Product routines

// //////////////////////////////////////////////////////////////////////////////
function update()
			{
//			if (confirm('Press OK to add the item to your basket\nTo view the basket click on Basket on the menubar'))
				{
//				if (productid != '')
//					document.frmMain.productid.value=productid;
					
				document.frmMain.submit();
				return true;
				}
			}

function productviewlarge(productid)
			{
			var mywin=window.open( 'productviewlarge.aspx?productid=' + productid, 'largeproduct', 'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=no,copyhistory=no,width=450,height=550' );
			mywin.focus();
			}





// //////////////////////////////////////////////////////////////////////////////

// Support functions

// //////////////////////////////////////////////////////////////////////////////

/*
function buttonhover(loc,cls)
	{
	if(loc.className)
		loc.className=cls;
	}
*/

function infopopup(infoid)
			{
			var mywin=window.open( 'infopopup.aspx?infoid=' + infoid, 'Info', 'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=no,copyhistory=no,width=350,height=450' );
			mywin.focus();
			}



function sizespopup() {
    $.colorbox({ width: "40%", height: "70%", inline: true, href: "#sizespopup" });

			}


function ValidateEmail(emailStr) {



/* 

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


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;
}