/* Simple AJAX Code-Kit (SACK) v1.6.1 */
/* ©2005 Gregory Wild-Smith */
/* www.twilightuniverse.com */
/* Software licenced under a modified X11 licence,
see documentation or authors website for more details */

function sack(file) {
	this.xmlhttp = null;

	this.resetData = function() {
		this.method = "POST";
		this.queryStringSeparator = "?";
		this.argumentSeparator = "&";
		this.URLString = "";
		this.encodeURIString = true;
		this.execute = false;
		this.element = null;
		this.elementObj = null;
		if (file) {
			this.requestFile = file;
		} else {
			this.requestFile = "shopAjax.php";
		}
		this.vars = new Object();
		this.responseStatus = new Array(2);
	};

	this.resetFunctions = function() {
		this.onLoading = function() { };
		this.onLoaded = function() { };
		this.onInteractive = function() { };
		this.onCompletion = function() { };
		this.onError = function() { };
		this.onFail = function() { };
	};

	this.reset = function() {
		this.resetFunctions();
		this.resetData();
	};

	this.createAJAX = function() {
		try {
			this.xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
		} catch (e1) {
			try {
				this.xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
			} catch (e2) {
				this.xmlhttp = null;
			}
		}

		if (! this.xmlhttp) {
			if (typeof XMLHttpRequest != "undefined") {
				this.xmlhttp = new XMLHttpRequest();
			} else {
				this.failed = true;
			}
		}
	};

	this.setVar = function(name, value){
		this.vars[name] = Array(value, false);
	};

	this.encVar = function(name, value, returnvars) {
		if (true == returnvars) {
			return Array(encodeURIComponent(name), encodeURIComponent(value));
		} else {
			this.vars[encodeURIComponent(name)] = Array(encodeURIComponent(value), true);
		}
	}

	this.processURLString = function(string, encode) {
		encoded = encodeURIComponent(this.argumentSeparator);
		regexp = new RegExp(this.argumentSeparator + "|" + encoded);
		varArray = string.split(regexp);
		for (i = 0; i < varArray.length; i++){
			urlVars = varArray[i].split("=");
			if (true == encode){
				this.encVar(urlVars[0], urlVars[1]);
			} else {
				this.setVar(urlVars[0], urlVars[1]);
			}
		}
	}

	this.createURLString = function(urlstring) {
		if (this.encodeURIString && this.URLString.length) {
			this.processURLString(this.URLString, true);
		}

		if (urlstring) {
			if (this.URLString.length) {
				this.URLString += this.argumentSeparator + urlstring;
			} else {
				this.URLString = urlstring;
			}
		}

		// prevents caching of URLString
		this.setVar("rndval", new Date().getTime());

		urlstringtemp = new Array();
		for (key in this.vars) {
			if (false == this.vars[key][1] && true == this.encodeURIString) {
				encoded = this.encVar(key, this.vars[key][0], true);
				delete this.vars[key];
				this.vars[encoded[0]] = Array(encoded[1], true);
				key = encoded[0];
			}

			urlstringtemp[urlstringtemp.length] = key + "=" + this.vars[key][0];
		}
		if (urlstring){
			this.URLString += this.argumentSeparator + urlstringtemp.join(this.argumentSeparator);
		} else {
			this.URLString += urlstringtemp.join(this.argumentSeparator);
		}
	}

	this.runResponse = function() {
		eval(this.response);
	}

	this.runAJAX = function(urlstring) {
		if (this.failed) {
			this.onFail();
		} else {
			this.createURLString(urlstring);
			if (this.element) {
				this.elementObj = document.getElementById(this.element);
			}
			if (this.xmlhttp) {
				var self = this;
				if (this.method == "GET") {
					totalurlstring = this.requestFile + this.queryStringSeparator + this.URLString;
					this.xmlhttp.open(this.method, totalurlstring, true);
				} else {
					this.xmlhttp.open(this.method, this.requestFile, true);
					try {
						this.xmlhttp.setRequestHeader("Content-Type", "application/x-www-form-urlencoded")
					} catch (e) { }
				}

				this.xmlhttp.onreadystatechange = function() {
					switch (self.xmlhttp.readyState) {
						case 1:
						self.onLoading();
						break;
						case 2:
						self.onLoaded();
						break;
						case 3:
						self.onInteractive();
						break;
						case 4:
						self.response = self.xmlhttp.responseText;
						self.responseXML = self.xmlhttp.responseXML;
						self.responseStatus[0] = self.xmlhttp.status;
						self.responseStatus[1] = self.xmlhttp.statusText;

						if (self.execute) {
							self.runResponse();
						}

						if (self.elementObj) {
							elemNodeName = self.elementObj.nodeName;
							elemNodeName.toLowerCase();
							if (elemNodeName == "input"
							|| elemNodeName == "select"
							|| elemNodeName == "option"
							|| elemNodeName == "textarea") {
								self.elementObj.value = self.response;
							} else {
								self.elementObj.innerHTML = self.response;
							}
						}
						if (self.responseStatus[0] == "200") {
							self.onCompletion();
						} else {
							self.onError();
						}

						self.URLString = "";
						break;
					}
				};

				this.xmlhttp.send(this.URLString);
			}
		}
	};

	this.reset();
	this.createAJAX();
}

function referFriend() {
	id="catnumber";
	object=document.getElementById(id);
	catnumber=object.value;

	id="resource";
	object=document.getElementById(id);
	resource=object.value;

	id="email";
	object=document.getElementById(id);
	email=object.value;

	if (!checkEmail(email)) {
		alert("You don't seem to have entered a valid email address!");
		document.email.Focus();
		return;
	}
	ajax = new sack();
	if (ajax.failed) {
		alert("Failed");
	} else {
		ajax.setVar("op","refer");
		ajax.encVar("email",email);
		ajax.encVar("resource",resource);
		ajax.encVar("catnumber",catnumber);
		ajax.element="page";
		ajax.runAJAX();
		if (ajax.failed) {
			alert("failed");
		} else {
			
			//refreshBasket();
		}
	}
}

function addToCart(r,desc) {
	// p = parent product, for when adding tracks to the cart.
	ajax = new sack();
	if (ajax.failed) {
		alert("Failed");
	} else {
		ajax.setVar("op","add_to_basket");
		ajax.encVar("r",r);
		ajax.element="basketdetails";
		ajax.runAJAX();
		if (ajax.failed) {
			alert("failed");
		} else {
			//addToCartSound();
			id="shopsez";
			object=document.getElementById(id);
			if (object) object.innerHTML="Thanks! You have added an item to your cart!";
			alert("Item added to cart! Thanks!");
		}
	}
}

function addTrackToCart(r,p) {
	// p = parent product, for when adding tracks to the cart.
	ajax = new sack();
	if (ajax.failed) {
		alert("Failed");
	} else {
		ajax.setVar("op","add_to_basket");
		ajax.encVar("r",r);
		ajax.encVar("v2",p);
		ajax.element="basketdetails";
		ajax.runAJAX();
		if (ajax.failed) {
			alert("failed");
		} else {
			//addToCartSound();
			id="shopsez";
			object=document.getElementById(id);
			if (object) object.innerHTML="Thanks! You have added an item to your cart!";
			alert("Track added to cart! Thanks!");
		}
	}
}

function decrementItem(itemkey) {
	id=itemkey+"_qty";
	object=document.getElementById(id);
	value=object.value;
	newValue=value-1;
	if (newValue <= 0) {
		basket_delete(itemkey)
	} else {
		object.value=newValue;
		update_basket(itemkey);
	}
}

function update_basket(itemkey){
	id=itemkey+"_qty";
	object=document.getElementById(id);
	value=object.value;
	defaultValue=object.defaultValue;
	ajax = new sack();
	if (ajax.failed) {
		alert("Failed");
	} else {
		ajax.setVar("op","basket_update");
		ajax.encVar("item_key",itemkey);
		ajax.encVar("qty",value);
		//ajax.element="basketdetails";
		ajax.runAJAX();
		if (ajax.failed) {
			alert("failed");
		} else {
			refreshBasket();
		}
	}

}

function refreshBasket() {
	doAjax("order_total_review","order_total_review_span");
	doAjax("order_items","order_items_span");
	doAjax("order_total_sm","order_total_sm_span");
}

function doAjax(op,dest) {
	ajax = new sack();
	if (ajax.failed) {
		alert("Failed");
	} else {
		ajax.setVar("op",op);
		ajax.element=dest;
		ajax.runAJAX();
		if (ajax.failed) {
			return false;
		}
	}
}

function basket_delete(itemkey) {
	ajax = new sack();
	if (ajax.failed) {
		alert("Failed");
	} else {
		ajax.setVar("op","basket_delete");
		ajax.encVar("item_key",itemkey);
		//ajax.element="basketdetails";
		ajax.runAJAX();
		if (ajax.failed) {
			alert("failed");
		} else {
			refreshBasket();
		}
	}
}

function applyCoupon() {
	id="couponCode";
	object=document.getElementById(id);
	value=object.value;

	if (value) {
	ajax = new sack();
	if (ajax.failed) {
		alert("Failed");
	} else {
		ajax.setVar("op","applycoupon");
		ajax.encVar("couponCode",value);
		ajax.element="couponMessage";
		ajax.runAJAX();
		if (ajax.failed) {
			alert("failed");
		} else {
			refreshBasket();
		}
	}

	}
}

function refreshSmiley() {
	id="terms";
	object=document.getElementById(id);
	value=object.checked;
	
	object=document.getElementById("smiley");
	if (value) {
		object.src="images/sm_thumbsup.gif";
		object.alt="You just agreed to our conditions! Yay!";
		object.title=object.alt;
	} else {
		object.src="images/sm_nonono.gif";
		object.alt="You just disagreed with our conditions. That kind of makes it hard to go on...";
		object.title=object.alt;
	}
}

function doLogin() {
	
	id="this_user";
	object=document.getElementById(id);
	this_user=object.value;

	id="this_pass";
	object=document.getElementById(id);
	this_pass=object.value;
		
	frm=document.getElementById("login_form");
	if (frm) {
		frm.submit();
	} else {
		ajax = new sack();
		if (ajax.failed) {
			alert("Failed");
		} else {
			ajax.setVar("op","login");
			ajax.encVar("this_user",this_user);
			ajax.encVar("this_pass",this_pass);
			//ajax.element="login_span";
			ajax.runAJAX();
			if (ajax.failed) {
				alert("failed");
			} else {
				//refresh();
			}
		}
	}
}

function termsAndConditions() {
	id="terms";
	object=document.getElementById(id);
	value=object.value;

	ajax = new sack();
	if (ajax.failed) {
		alert("Failed");
	} else {
		ajax.setVar("op","agreetoterms");
		ajax.encVar("terms",value);
		//ajax.element="basketdetails";
		ajax.runAJAX();
		if (ajax.failed) {
			alert("failed");
		} else {
			refreshSmiley();
		}
	}	
}

function updateAdditional() {
	id="additional";
	object=document.getElementById(id);
	value=object.value;

	ajax = new sack();
	if (ajax.failed) {
		alert("Failed");
	} else {
		ajax.setVar("op","setadditional");
		ajax.encVar("additional",value);
		ajax.element="shopmsg"; // a message from the shop comes back here... :)
		ajax.runAJAX();
		if (ajax.failed) {
			alert("failed");
		} 
	}	
}

function editDelivery() {
	id="did";
	object=document.getElementById(id);
	value=object.value;

	ajax = new sack();
	if (ajax.failed) {
		alert("Failed");
	} else {
		ajax.setVar("op","deliveryform");
		ajax.encVar("did",value);
		ajax.element="delivery_add_span";
		ajax.runAJAX();
		if (ajax.failed) {
			alert("failed");
		} else {
			doAjax("order_total_sm","order_total_sm_span");
		}
	}	
}
function addDelivery() {

	ajax = new sack();
	if (ajax.failed) {
		alert("Failed");
	} else {
		ajax.setVar("op","deliveryform");
		ajax.encVar("did",'0');
		ajax.element="delivery_add_span";
		ajax.runAJAX();
		if (ajax.failed) {
			alert("failed");
		} else {
			doAjax("order_total_sm","order_total_sm_span");
		}
	}		
}

function changeShipmentMethod() {
	id="shipment_method";
	object=document.getElementById(id);
	value=object.value;

	ajax = new sack();
	if (ajax.failed) {
		alert("Failed");
	} else {
		ajax.setVar("op","changeshipmentmethod");
		ajax.encVar("shipmentmethod",value);
		//ajax.element="payment_span";
		ajax.runAJAX();
		if (ajax.failed) {
			alert("failed");
		} else {
			doAjax("order_total_sm","order_total_sm_span");
		}
	}		
}
function changePaymentMethod() {
	id="payment_method";
	object=document.getElementById(id);
	value=object.value;

	ajax = new sack();
	if (ajax.failed) {
		alert("Failed");
	} else {
		ajax.setVar("op","changepaymentmethod");
		ajax.encVar("paymentmethod",value);
		ajax.element="payment_span";
		ajax.runAJAX();
		if (ajax.failed) {
			alert("failed");
		} else {
			doAjax("order_total_sm","order_total_sm_span");
		}
	}	
}

function changeDeliveryAddress() {
	id="did";
	object=document.getElementById(id);
	value=object.value;

	ajax = new sack();
	if (ajax.failed) {
		alert("Failed");
	} else {
		ajax.setVar("op","changedeliveryaddress");
		ajax.encVar("did",value);
		ajax.element="delivery_add_span"; // a message from the shop comes back here... :)
		ajax.runAJAX();
		if (ajax.failed) {
			alert("failed");
		} else {
			doAjax("order_total_sm","order_total_sm_span");
		}
	}	
	
}

function deleteDeliveryAddress() {
	id="did";
	object=document.getElementById(id);
	value=object.value;

	ajax = new sack();
	if (ajax.failed) {
		alert("Failed");
	} else {
		ajax.setVar("op","deletedeliveryaddress");
		ajax.encVar("did",value);
		ajax.element="delivery_add_span"; // a message from the shop comes back here... :)
		ajax.runAJAX();
		if (ajax.failed) {
			alert("failed");
		} else {
			doAjax("order_total_sm","order_total_sm_span");
		}
	}		
}

function doSearch(string) {
	page=1;
	id="searchString";
	object=document.getElementById(id);
	object.value=string;
	talkToShop(1);	
}

function talkToShop(page) {
	id="searchString";
	object=document.getElementById(id);
	value=object.value;
	
	id="chart";
	object=document.getElementById(id);
	if (!object) id="page";
	
	if (value=='') return;
	ajax = new sack();
	if (ajax.failed) {
		alert("Failed");
	} else {
		ajax.setVar("op","search");
		ajax.encVar("searchString",value);
		ajax.encVar("searchPage",page);
		ajax.setVar("clear",1);
		ajax.element=id; // a message from the shop comes back here... :)
		ajax.runAJAX();
		if (ajax.failed) {
			alert("failed");
		} 
	}			
}

function getTerms() {
	ajax = new sack();
	if (ajax.failed) {
		alert("Failed");
	} else {
		ajax.setVar("op","terms");
		ajax.element="page"; // a message from the shop comes back here... :)
		ajax.runAJAX();
		if (ajax.failed) {
			alert("failed");
		} 
	}				
}

function chartPage(page) {
	ajax = new sack();
	if (ajax.failed) {
		alert("Failed");
	} else {
		ajax.setVar("op","chart");
		ajax.encVar("page",page);
		ajax.element="chart"; // a message from the shop comes back here... :)
		ajax.runAJAX();
		if (ajax.failed) {
			alert("failed");
		} 
	}				
}

function validateCustomer() {

	compulsoryFields=new Array('FirstName','LastName','Email',"TelephoneHome","StreetAddress1","City","Zip","pass","passcheck");
	
	var $i;
	for (i = 0; i < compulsoryFields.length; i++){
		id=compulsoryFields[i];
		field=document.getElementById(id);
		if(typeof(field) == "undefined") { 
			alert(id);
			return;
		}

		if(typeof(field.value) == "undefined") { 
			alert("Please fill in " + field.name);
			return;
		} 
	}

	tmp=document.getElementById('pass');
	pass1=tmp.value;
	tmp=document.getElementById('passcheck');
	pass2=tmp.value;
	
	if (pass1 != pass2) {
		alert("Password fields don't match...");
		return;
	}
	document.forms.customer.submit();
}

function updateDeliveryAddress() {
	dld=document.getElementById('did');
	co=document.getElementById('Country');
	var country = new String;
	if(typeof(co.value) != "undefined") { 
		country=co.value; 
	} else {
		alert("Country failure!");
	}
	compulsoryFields=new Array('DlyStreetAddress1','DlyCity','DlyZip');
	otherFields=new Array('did','CourtesyTitle','FirstName','LastName','DlyStreetAddress2','DlyRegion','TelephoneDly','DlyBusinessName');
	
	ajax = new sack();
	if (ajax.failed) {
		alert("Failed");
	} else {
		ajax.setVar("op","adddeliveryaddress");
		ajax.element="delivery_add_span"; 
	}	

	var $i;
	for (i = 0; i < compulsoryFields.length; i++){
		id=compulsoryFields[i];
		field=document.getElementById(id);
		value=field.value;
		if (!value) {
			alert("Please fill in " + field.name);
			return;
		} else {
			ajax.encVar(id,value);
		}
	}

	for (i = 0; i < otherFields.length; i++){
		id=otherFields[i];
		field=document.getElementById(id);
		value=field.value;
		ajax.encVar(id,value);
	}

	ajax.encVar('DlyCountry',country);
	ajax.runAJAX();
	if (ajax.failed) {
		alert("failed");
	} else {
			doAjax("order_total_sm","order_total_sm_span");
	}
	
}

function forgotPassword() {
	id="this_user";
	object=document.getElementById(id);
	this_user=object.value;

	if (this_user=="email") {
		alert("Please enter the email address you're registered with, then click here again!");
		object.focus();
		return;
	}

	if (!checkEmail(this_user)) {
		alert("You don't seem to have entered a valid email address.")
	}

	if (!this_user) {
		alert("Please enter the email address you're registered with, then click here again!");
		return;
	}
	
	ajax = new sack();
	if (ajax.failed) {
		alert("Failed");
	} else {
		ajax.setVar("op","forgotPassword");
		ajax.encVar("this_user",this_user);
		ajax.element="shopsez";
		ajax.runAJAX();
		if (ajax.failed) {
			alert("failed");
		} else {
			alert("Thanks! Email should have been sent. And, in all probability, it was.");
			//refreshBasket();
		}
	}
}

function sendOrder() {
	id="terms";
	object=document.getElementById(id);
	checked=object.checked;

	if (checked) {
		document.location.href="shop.php?op=payCart";
		return;
	} else {
		alert("You haven't agreed to the terms and conditions...");
	}
}

function checkEmail(str) {
		var message = "Your email address is entered as " + str +"\nThis does not seem like a valid address.\nPlease enter an email address.\n";
		var at="@"
		var dot="."
		var lat=str.indexOf(at)
		var lstr=str.length
		var ldot=str.indexOf(dot)
		if (str.indexOf(at)==-1){
		   return false
		}

		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
		   return false
		}

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
		    return false
		}

		 if (str.indexOf(at,(lat+1))!=-1){
		    return false
		 }

		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
		    return false
		 }

		 if (str.indexOf(dot,(lat+2))==-1){
		    return false
		 }
		
		 if (str.indexOf(" ")!=-1){
		    return false
		 }
 		 return true					
	}