//in_array function as used by "checkWithinDeliveryZone"
Array.prototype.inArray = function (value){ // Returns true if the passed value is found in the array. Returns false if it is not.

var i;

for (i=0; i < this.length; i++){
	if (this[i] == value){
		return true;
	}
}
return false;
};



function longEnough(elem){

	var errorName = 'error_'+elem.name;
	if (elem.value.length < 6){

		document.getElementById(errorName).style.display='block';	//Make the red asterisk show up next to the error field
		elem.focus();

		return false;
	}

	document.getElementById(errorName).style.display='none';
	return true;
}


function notEmpty(elem){

	var errorName = 'error_'+elem.name;
	if(elem.value.length == 0){
		document.getElementById(errorName).style.display='block';	//Make the red asterisk show up next to the error field
		elem.focus();
		return false;
	}

	document.getElementById(errorName).style.display='none';
	return true;
}

function notEmptyTwo(elem1, elem2){
	if((elem1.value.length == 0) && (elem2.value.length == 0)){

		var errorName = 'error_'+elem2.name;

		document.getElementById(errorName).style.display='block';	//Make the red asterisk show up next to the error field
		elem2.focus();

		return false;
	}
	return true;
}

function checkBottlesOrdered(elem,threshold){

	var errorName = 'error_'+elem.name;
	if((elem.value > 0) && (elem.value < threshold)){
		document.getElementById(errorName).style.display='block';	//Make the red asterisk show up next to the error field
		//elem.focus(); //element is hidden!!
		return false;
	}

	document.getElementById(errorName).style.display='none';
	return true;
}

function checkWithinDeliveryZone(elem,allowed_delivery_zones){

	var errorName = 'error_'+elem.name;
	var delivery_zones_array=allowed_delivery_zones.split("**");

	if ((delivery_zones_array.inArray(elem.value)) == false){

		document.getElementById(errorName).style.display='block';	//Make the red asterisk show up next to the error field
		//elem.focus(); //element is hidden!!
		return false;
	}

	document.getElementById(errorName).style.display='none';
	return true;
}


function isInteger(elem, sText)
{

   var ValidChars = "0123456789-";
   var IsNumber=true;
   var Char;


   for (i = 0; i < sText.length && IsNumber == true; i++)
      {
      Char = sText.charAt(i);
      if (ValidChars.indexOf(Char) == -1)
         {

			var errorName = 'error_'+elem.name;
			document.getElementById(errorName).style.display='block';	//Make the red asterisk show up next to the error field
			elem.focus();
	        IsNumber = false;

         }
      }
   return IsNumber;
}

function moneyValidator(elem){
	var moneyExp = /^[0-9\.\-]+\.[0-9]{2,4}$/;
	if(elem.value.match(moneyExp)){
		return true;
	}else{
		var errorName = 'error_'+elem.name;

		document.getElementById(errorName).style.visibility='visible';	//Make the red asterisk show up next to the error field
		elem.focus();
	}
}

function roundNumber(num, dec) {
	var result = Math.round(num*Math.pow(10,dec))/Math.pow(10,dec);
	return result;
}

function validate_contact_us(){

	// Make quick references to our fields
	var val_name = document.getElementById('Name');
	var val_email = document.getElementById('Email');

	//Hide the asterisks prior to any of them showing up (otherwise they persist)
	//document.getElementById('error_name').style.display='block';

	// Check each input in the booking that it appears in the form!

	if(notEmpty(val_name)){
		if(notEmpty(val_email)){
			if (jcap()){
		   		return true;
			}
		}
	}
	return false;
}

function validate_tell_a_friend(){

	// Make quick references to our fields

	var name_friend_primary = document.getElementById('name_friend_primary');
	var email_friend_primary = document.getElementById('email_friend_primary');

	var name_friend_1 = document.getElementById('name_friend_1');
	var email_friend_1 = document.getElementById('email_friend_1');

	var name_friend_2 = document.getElementById('name_friend_2');
	var email_friend_2 = document.getElementById('email_friend_2');

	var name_friend_3 = document.getElementById('name_friend_3');
	var email_friend_3 = document.getElementById('email_friend_3');

	var val_termsandconditions = document.getElementById('TermsAndConditions');


	// Check each input appears in the form!
	// First name and email are required.  Remaining emails are checked if used.

	if (notEmpty(name_friend_primary)){
		if (validate_email_address(email_friend_primary)){
			if (notEmpty(name_friend_1)){
				if (validate_email_address(email_friend_1)){
					if (notEmpty(name_friend_2)){
						if (validate_email_address(email_friend_2)){
							if (notEmpty(name_friend_3)){
								if (validate_email_address(email_friend_3)){
				   					if(notChecked(val_termsandconditions)){
										if (jcap()){
									   		return true;
										}
									}
								}
							}
						}
					}
				}
		 	}
		}
	}

	return false;
}

function validate_competition(){

	// Make quick references to our fields
	var val_name = document.getElementById('Name');
	var val_email = document.getElementById('Email');
	var val_termsandconditions = document.getElementById('TermsAndConditions');

	//Hide the asterisks prior to any of them showing up (otherwise they persist)
	//document.getElementById('error_name').style.display='block';

	// Check each input in the booking that it appears in the form!

	if(notEmpty(val_name)){
		if(notEmpty(val_email)){
			if(notChecked(val_termsandconditions)){
				if (jcap()){
			   		return true;
				}
			}
		}
	}
	return false;
}

function validate_special_offers(){

	// Make quick references to our fields
	var val_name = document.getElementById('Name');
	var val_email = document.getElementById('Email');

	//Hide the asterisks prior to any of them showing up (otherwise they persist)
	//document.getElementById('error_name').style.display='block';

	// Check each input in the booking that it appears in the form!

	if(notEmpty(val_name)){
		if(notEmpty(val_email)){
			if (jcap()){
		   		return true;
			}
		}
	}
	return false;
}

function validate_site(){

	// Make quick references to our fields
	var missive = document.getElementById('missive');
	var contact_email = document.getElementById('contact_email');

	if(notEmpty(contact_email)){
		if (jcap()){
	   		return true;
		}
	}

	return false;
}


function validate_email() {
var where = document.getElementById("news_email").value.indexOf("@");

if (document.getElementById("news_email").value.length < 1) {
  window.alert("You must include your e-mail address.");
  return false;
}
if (where < 0) {
  window.alert("You must enter a valid email address");
  return false;
}
return true;
}

function sameValue(elem1,elem2){

	var errorName = 'error_'+elem2.name;
	if(elem1.value != elem2.value){
		document.getElementById(errorName).style.display='block';	//Make the red asterisk show up next to the error field
		elem2.focus();
		return false;
	}

	document.getElementById(errorName).style.display='none';
	return true;
}

function validate_email_address(elem) {

	var errorName = 'error_'+elem.name;
	if(elem.value.length == 0){
		document.getElementById(errorName).style.display='block';	//Make the red asterisk show up next to the error field
		elem.focus();
		return false;
	}

	var at="@"
	var dot="."
	var lat=elem.value.indexOf(at)
	var lelem=elem.value.length
	var ldot=elem.value.indexOf(dot)

	if (elem.value.indexOf(at)==-1){

		document.getElementById(errorName).style.display='block';	//Make the red asterisk show up next to the error field
		elem.focus();

		return false;
	}

	if (elem.value.indexOf(at)==-1 || elem.value.indexOf(at)==0 || elem.value.indexOf(at)==lelem){

		document.getElementById(errorName).style.display='block';	//Make the red asterisk show up next to the error field
		elem.focus();

		return false;
	}

	if (elem.value.indexOf(dot)==-1 || elem.value.indexOf(dot)==0 || elem.value.indexOf(dot)==lelem){
		document.getElementById(errorName).style.display='block';	//Make the red asterisk show up next to the error field
		elem.focus();

		return false;
	}

	 if (elem.value.indexOf(at,(lat+1))!=-1){
		document.getElementById(errorName).style.display='block';	//Make the red asterisk show up next to the error field
		elem.focus();

		return false;
	 }

	 if (elem.value.substring(lat-1,lat)==dot || elem.value.substring(lat+1,lat+2)==dot){
		document.getElementById(errorName).style.display='block';	//Make the red asterisk show up next to the error field
		elem.focus();

		return false;
	 }

	 if (elem.value.indexOf(dot,(lat+2))==-1){
		document.getElementById(errorName).style.display='block';	//Make the red asterisk show up next to the error field
		elem.focus();

		return false;
	 }

	 if (elem.value.indexOf(" ")!=-1){
		document.getElementById(errorName).style.display='block';	//Make the red asterisk show up next to the error field
		elem.focus();

		return false;
	 }

	document.getElementById(errorName).style.display='none';
	return true;

}

function notChecked(elem){

	var errorName = 'error_'+elem.name;

	if(elem.checked == false){

		document.getElementById(errorName).style.display='block';	//Make the red asterisk show up next to the error field
		elem.focus();

		return false;
	}

	document.getElementById(errorName).style.display='none';
	return true;
}

function isInteger(elem, sText)
{

   var ValidChars = "0123456789-";
   var IsNumber=true;
   var Char;


   for (i = 0; i < sText.length && IsNumber == true; i++)
      {
      Char = sText.charAt(i);
      if (ValidChars.indexOf(Char) == -1)
         {

			var errorName = 'error_'+elem.name;
			document.getElementById(errorName).style.display='block';	//Make the red asterisk show up next to the error field
			elem.focus();
	        IsNumber = false;

         }
      }
   return IsNumber;
}

function moneyValidator(elem){
	var moneyExp = /^[0-9\.\-]+\.[0-9]{2,4}$/;
	if(elem.value.match(moneyExp)){
		return true;
	}else{
		var errorName = 'error_'+elem.name;

		document.getElementById(errorName).style.visibility='visible';	//Make the red asterisk show up next to the error field
		elem.focus();
	}
}

function roundNumber(num, dec) {
	var result = Math.round(num*Math.pow(10,dec))/Math.pow(10,dec);
	return result;
}




function validate_demographics(){

	// Make quick references to our fields

	var val_delivery_firstname = document.getElementById('delivery_firstname');
	var val_delivery_surname = document.getElementById('delivery_surname');
	var val_delivery_address_address = document.getElementById('delivery_address_address');
	var val_delivery_address_province = document.getElementById('delivery_address_province');
	var val_delivery_address_country_code = document.getElementById('delivery_address_country_code');
	var val_delivery_address_postalCode = document.getElementById('delivery_address_postalCode');
	var val_delivery_address_city = document.getElementById('delivery_address_city');
	var val_contact_phoneNumber = document.getElementById('contact_phoneNumber');
	var val_email = document.getElementById('email');
	var val_password = document.getElementById('password');
	var val_password_again = document.getElementById('password_again');
	var val_secret_question = document.getElementById('secret_question');
	var val_secret_answer = document.getElementById('secret_answer');
	var val_contact_firstname = document.getElementById('contact_firstname');
	var val_contact_surname = document.getElementById('contact_surname');


	//Not checked:

	//Hide the asterisks prior to any of them showing up (otherwise they persist)

	// Check each input in the booking that it appears in the form!

//	if(notChecked(val_terms_and_conditions)){

	if(notEmpty(val_contact_firstname)){
		if(notEmpty(val_contact_surname)){
			if(notEmpty(val_contact_phoneNumber)){
				if((validate_email_address(val_email)) && (notEmpty(val_email))){
					if((notEmpty(val_password)) && (sameValue(val_password,val_password_again))){
						if((longEnough(val_password))){
							if(notEmpty(val_secret_question)){
								if(notEmpty(val_secret_answer)){
									if(notEmpty(val_delivery_firstname)){
										if(notEmpty(val_delivery_surname)){
											if(notEmpty(val_delivery_address_address)){
												if(notEmpty(val_delivery_address_city)){
													if(notEmpty(val_delivery_address_province)){
														if(notEmpty(val_delivery_address_postalCode)){
															if(notEmpty(val_delivery_address_country_code)){
														   		return true;
															}
														}
													}
												}
											}
										}
									}
								}
							}
						}
					}
				}
			}
		}
	}

//	}
	return false;
}

function validate_order_form(threshold,allowed_delivery_zones){

	//NB threshold is How many bottles must be ordered to qualify.  Note that zero is also allowed since restriction only applies to wine.

	// Make quick references to our fields
	var val_bottles_ordered = document.getElementById('bottles_ordered');
	var val_over_18 = document.getElementById('over_18');
	var val_delivery_address_country_code = document.getElementById('delivery_address_country_code');

	document.getElementById('error_bottles_ordered').style.display = 'none';

	var voucher = document.getElementById('voucher').value;

	var override_bottles_threshold_promotional_codes = new Array("blakers2011", "override");

	//Hide the asterisks prior to any of them showing up (otherwise they persist)
	//document.getElementById('error_name').style.display='block';

	// Check each input in the booking that it appears in the form!

	if ((((override_bottles_threshold_promotional_codes.inArray(voucher)) == true)) || (checkBottlesOrdered(val_bottles_ordered,threshold))){
		if (notChecked(val_over_18)){
			if (checkWithinDeliveryZone(val_delivery_address_country_code,allowed_delivery_zones)){
	   			return true;
			}
		}
	}
	return false;
}