/////////////////////////////////////////////////////////////////////////////
// cookie stuff
function save_cookie(name,value,minutes) {
	if (minutes) {
		var date = new Date();
		date.setTime(date.getTime()+(minutes*60*1000))
		var expires = "; expires="+date.toGMTString()
	}
	else expires = "";
	document.cookie = escape(name)+"="+escape(value)+expires+"; path=/"
}
function read_cookie(name) {
	var nameEQ = escape(name) + "="
	var ca = document.cookie.split(';')
	for(var i=0;i<ca.length;i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length)
		if (c.indexOf(nameEQ) == 0) return unescape(c.substring(nameEQ.length,c.length))
	}
	return null
}
function delete_cookie(name) {
//	var namefix = escape(name);
	save_cookie(name, "", -1);
}
/////////////////////////////////////////////////////////////////////////////
// product stuff
var g_currency = '';
var g_decimal = ',';
var g_thousand = '.';
var g_cookieminutes = null; //MUST BE "null". Deletes cookies when user closes browser.
var g_havebasket = 0;
var g_products = new Array();
function add_product(guid, itemno, name, price, vUrl, pricenovat){
	var numPrice = new Number(price);
	var numPricenovat = new Number(pricenovat);
	var item = new Array(guid, itemno, name, numPrice.toFixed(2), vUrl, numPricenovat.toFixed(2));
	g_products[g_products.length] = item;
}
function get_url(guid){
	var cookie = read_cookie(guid+'_iwqty');
	if ((cookie != null) && (cookie != '')){
		var splitcharpos = cookie.indexOf('¤¤');
		var urlvalue = cookie.substring(splitcharpos)
		return urlvalue;
	}else{
		return '';
	}
}
function get_qty(guid){
	var cookie = read_cookie(guid+'_iwqty');
	if ((cookie != null) && (cookie != '')){
		var splitcharpos = cookie.indexOf('¤¤');
		var qtyvalue = cookie.substring(0, splitcharpos)
		return parseInt(qtyvalue);
	}else{
		return 0;
	}
}
function set_qty(guid, qty, vUrl){
	if (qty < 0) qty = 0;
	if (!qty) {
		delete_cookie(guid+'_iwqty');
	} else if(qty==0) {
		delete_cookie(guid+'_iwqty');
	} else {
		if(vUrl=='') vUrl = get_url(guid);
		save_cookie(guid+'_iwqty', parseInt(qty)+'¤¤'+vUrl, g_cookieminutes);
	}
}
function add_item(guid, qty, vUrl){
	set_qty(guid, get_qty(guid) + parseInt(qty), vUrl);
	update_basket();
}
function remove_item(guid){
	set_qty(guid, 0, '');
	update_basket();
}
function empty_basket(){
	for(var i=0; i<g_products.length; i++){
		var product = g_products[i];
		var guid = product[0];
		remove_item(guid);
	}
	delete_cookie('cartid');
}
/////////////////////////////////////////////////////////////////////////////
// basket stuff
function build_basket(container_id, checkout_url){
	var cell, row;
	var elm_parent = document.getElementById(container_id);
	var elm_table = create_element(elm_parent, 'TABLE');
	elm_table.setAttribute('border', '0');
	elm_table.setAttribute('cellPadding', '0');
	elm_table.setAttribute('cellSpacing', '0');
	// we have to have a tbody for some reason
	var elm_tbody = create_element(elm_table, 'TBODY');
	// add header row
	row = create_element(elm_tbody, 'TR');
//	cell = create_element_filled(row, 'TH', 'Price');
	cell = create_element_filled(row, 'TH', iwshopNoOfProd);
	cell.setAttribute('width', '17%');
	cell = create_element_filled(row, 'TH', iwshopProdName);
	cell.setAttribute('width', '46%');
	cell = create_element_filled(row, 'TH', iwshopPriceTotal); //This is total for product
	cell.setAttribute('width', '25%');
	cell.setAttribute('id', 'price');
	cell = create_element_filled(row, 'TH', '');
	cell.setAttribute('width', '12%');
	var sub_total = 0;
	// add product rows
	for(var i=0; i<g_products.length; i++){
		var product = g_products[i];
		var guid = product[0];
		var itemno = product[1];
		var name = product[2];
		var price = product[3];
		var vUrl = product[4];
		var qty = get_qty(guid);
		var total = price*qty;
		sub_total += total;
		row = create_element(elm_tbody, 'TR');
		row.style.display = 'none';
		row.id = 'basket_row_'+guid;
		cell = create_element_filled(row, 'TD', 'QTY');
		cell.setAttribute('align', 'left');
		var input = document.createElement('INPUT');
		input.id = 'basket_input_'+guid;
		input.value = qty;
		input.size = 2;
		input.style.textAlign = 'right';
		input.onblur = update_qty;
		replace_contents(cell, input);
		cell = create_element_filled(row, 'TD', name);
//		cell = create_element_filled(row, 'TD', format_price(price));
//		cell.setAttribute('align', 'right');
		cell = create_element_filled(row, 'TD', 'TOTAL');
		cell.setAttribute('align', 'right');
		cell = create_element(row, 'TD');
		cell.setAttribute('align', 'right');
		var link = create_element_filled(cell, 'A', iwshopDelete);
		link.href = "Javascript:remove_item('"+guid+"');";
	}
	// add "empty" row
	row = create_element(elm_tbody, 'TR');
	row.style.display = 'none';
	row.id = 'basket_empty_row';
	cell = create_element(row, 'TD');
	cell.setAttribute('colSpan', '5');
	cell.setAttribute('align', 'center');
	create_element_filled(cell, 'I', iwshopIsEmpty);
	// show totals
	row = create_element(elm_tbody, 'TR');
	row.id = 'totalrow';
	cell = create_element_filled(row, 'TD', iwshopTotal);
	cell.setAttribute('align', 'right');
	cell = create_element_filled(row, 'TD', '');
	cell = create_element_filled(row, 'TD', format_price(sub_total));
	cell.setAttribute('align', 'right');
	cell.id = 'basket_subtotal';
	cell = create_element_filled(row, 'TD', iwshopCurrency);
	cell.setAttribute('align', 'right');
	// update button
	row = create_element(elm_tbody, 'TR');
	row.id = 'basket_update';
	row.style.display = 'none';
	cell = create_element(row, 'TD');
	cell.setAttribute('colSpan', '4');
	cell.setAttribute('align', 'right');
	link = create_element_filled(cell, 'A', iwshopUpdate);
	link.href = "javascript:update_qty()";
	// checkout button
	row = create_element(elm_tbody, 'TR');
	row.id = 'basket_checkout';
	row.style.display = 'none';
	cell = create_element(row, 'TD');
	cell.setAttribute('colSpan', '4');
	cell.setAttribute('align', 'right');
	link = create_element_filled(cell, 'A', iwshopOrder);
	link.href = checkout_url;
	g_havebasket = 1;
	update_basket();
}
function update_basket(){
	if (!g_havebasket) return;
	var isEmpty = true;
	var sub_total = 0;
	// update product rows
	for(var i=0; i<g_products.length; i++){
		var product = g_products[i];
		var guid = product[0];
		var itemno = product[1];
		var name = product[2];
		var price = product[3];
		var vUrl = product[4];
		var qty = get_qty(guid);
		var total = price*qty;
		sub_total += total;
		var row = document.getElementById('basket_row_'+guid);
		row.style.display = (qty > 0)?'':'none';
		
		// update qty
		var input = document.getElementById('basket_input_'+guid);
		input.value = qty;		
		// update total
		replace_contents(row.childNodes[2], document.createTextNode(format_price(total)));
		if (qty>0) isEmpty=false;
	}
	var row = document.getElementById('basket_empty_row');
	row.style.display = (!isEmpty)?'none':'';
	var cell = document.getElementById('basket_subtotal');
	replace_contents(cell, document.createTextNode(format_price(sub_total)));
	var row = document.getElementById('basket_update');
	row.style.display = (!isEmpty)?'':'none';
	var row = document.getElementById('basket_checkout');
	row.style.display = (!isEmpty)?'':'none';
}
function update_qty(){
	if (!g_havebasket) return;
	for(var i=0; i<g_products.length; i++){
		var product = g_products[i];
		var guid = product[0];
		var row = document.getElementById('basket_row_'+guid);
		var cell = row.childNodes[0];
		var input = cell.childNodes[0];
		set_qty(guid, input.value, '');
	}
	update_basket();
}
function build_minibasket(container_id){
	var sub_qty = 0;
	var sub_total = 0;
	var elm_parent = document.getElementById(container_id);
	for(var i=0; i<g_products.length; i++){
		var product = g_products[i];
		var vUrl = product[4];
		var guid = product[0];
		var qty = get_qty(guid);
		sub_qty += qty
		var price = product[3];
		var total = price*qty;
		sub_total += total;
	}
	if (qty){
		var cell, row;
		var elm_table = create_element(elm_parent, 'TABLE');
		elm_table.setAttribute('border', '0');
		elm_table.setAttribute('cellPadding', '0');
		elm_table.setAttribute('cellSpacing', '0');
		// we have to have a tbody for some reason
		var elm_tbody = create_element(elm_table, 'TBODY');
		// add headline
		row = create_element(elm_tbody, 'TR');
		cell = create_element(row, 'TD');
		img = create_element(cell, 'IMG');
		img.src = '/velfac/layout.nsf/webimages/minishoppingcart.jpg/$file/minishoppingcart.jpg';
		div = create_element_filled(cell, 'DIV', iwshopMiniHeadline);
		div.id = 'miniheadline';
//		div.setAttribute('class', 'miniheadline');
		// add no. of products		
		row = create_element(elm_tbody, 'TR');
		cell = create_element_filled(row, 'TD', iwshopMiniNoOfProd1+' '+sub_qty+' '+iwshopMiniNoOfProd2);
		cell.id = 'mininoofprod';
		// add total
		row = create_element(elm_tbody, 'TR');
		cell = create_element_filled(row, 'TD', iwshopMiniTotal+' '+ format_price(sub_total)+' '+iwshopMiniCurrency);
		cell.id = 'minitotal';
		// add goto link
		row = create_element(elm_tbody, 'TR');
		cell = create_element(row, 'TD');
		link = create_element_filled(cell, 'A', iwshopMiniGoto);
		link.href = iwshopMiniLinkUrl;
	}else{
//		s = "Your basket is empty.";
//		replace_contents(elm_parent, document.createTextNode(s));
	}
}
function build_confirmbasket(container_id){
	var cell, row;
	var submitqty='';
	var submititemno='';
	var submitprod='';
	var submitprice='';
	var submitpricetotal='';
	var elm_parent = document.getElementById(container_id);
	var elm_table = create_element(elm_parent, 'TABLE');
	elm_table.setAttribute('border', '0');
	elm_table.setAttribute('cellPadding', '0');
	elm_table.setAttribute('cellSpacing', '0');
	// we have to have a tbody for some reason
	var elm_tbody = create_element(elm_table, 'TBODY');
	// add header row
	row = create_element(elm_tbody, 'TR');
	cell = create_element_filled(row, 'TH', iwOrderNoOfProd);
	cell.setAttribute('width', '8%');
	cell.setAttribute('id', 'noofprod');
	cell = create_element_filled(row, 'TH', '');
	cell.setAttribute('width', '2%');
	cell = create_element_filled(row, 'TH', iwOrderProdNo);
	cell.setAttribute('width', '15%');
	cell = create_element_filled(row, 'TH', iwOrderProdName);
	cell.setAttribute('width', '35%');
	cell = create_element_filled(row, 'TH', iwOrderPrice);
	cell.setAttribute('width', '20%');
	cell.setAttribute('id', 'price');
	cell = create_element_filled(row, 'TH', iwOrderPriceTotal); //This is total for product
	cell.setAttribute('width', '20%');
	cell.setAttribute('id', 'priceTotal');
	var sub_total = 0;
	var sub_totalnovat = 0;
	// add product rows
	for(var i=0; i<g_products.length; i++){
		var product = g_products[i];
		var guid = product[0];
		var itemno = product[1];
		var name = product[2];
		var price = product[3];
		var vUrl = product[4];
		var pricenovat = product[5];
		if (vUrl == 'FREIGHT') {
			var qty = 1;
		} else {
			var qty = get_qty(guid);
		}
 		
		var total = price*qty;
		sub_total += total;
		var totalnovat = pricenovat*qty;
		sub_totalnovat += totalnovat;
		row = create_element(elm_tbody, 'TR');
		row.id = 'basket_row_'+guid;
		if (vUrl == 'FREIGHT') {
			cell = create_element_filled(row, 'TD', '');
			cell.setAttribute('align', 'right');
			cell = create_element_filled(row, 'TD', '');
			cell = create_element_filled(row, 'TD', '');
		}else{
			cell = create_element_filled(row, 'TD', qty);
			cell.setAttribute('align', 'right');
			cell = create_element_filled(row, 'TD', '');
			cell = create_element_filled(row, 'TD', itemno);
		}
		cell = create_element_filled(row, 'TD', name);
		cell = create_element_filled(row, 'TD', format_price(price)+' '+iwOrderCurrency);
		cell.setAttribute('align', 'right');
		cell = create_element_filled(row, 'TD', format_price(total)+' '+iwOrderCurrency);
		cell.setAttribute('align', 'right');
		
		if (i>0){
			submitqty 	+= '#';
			submititemno 	+= '#';
			submitprod 	+= '#';
			submitprice 	+= '#';
			submitpricetotal	+= '#';
		}
		submitqty 	+= qty;
		submititemno 	+= itemno;
		submitprod 	+= name;
		submitprice 	+= format_price(price);
		submitpricetotal	+= format_price(total);
	}
	// show totals
	row = create_element(elm_tbody, 'TR');
	row.id = 'totalrow';
	cell = create_element_filled(row, 'TD', iwOrderTotal);
	cell.setAttribute('colSpan', '5');
	cell.setAttribute('align', 'right');
	cell = create_element_filled(row, 'TD', format_price(sub_total)+' '+iwOrderCurrency);
	cell.setAttribute('align', 'right');
	cell.id = 'basket_subtotal';
	// show vat
	row = create_element(elm_tbody, 'TR');
	cell = create_element_filled(row, 'TD', iwOrderVAT);
	cell.setAttribute('colSpan', '5');
	cell.setAttribute('align', 'right');
	var vat = (sub_total - sub_totalnovat)
	cell = create_element_filled(row, 'TD', format_price(vat)+' '+iwOrderCurrency);
	cell.setAttribute('align', 'right');
	cell.id = 'basket_subtotal';
	// show price excl. VAT
	row = create_element(elm_tbody, 'TR');
	cell = create_element_filled(row, 'TD', iwOrderTotalexVAT);
	cell.setAttribute('colSpan', '5');
	cell.setAttribute('align', 'right');
	cell = create_element_filled(row, 'TD', format_price(sub_totalnovat)+' '+iwOrderCurrency);
	cell.setAttribute('align', 'right');
	// build input fields
	if (container_id == 'check_basket') {
		var input = document.getElementById('orderqty');
		input.value = submitqty;
		var input = document.getElementById('orderitem');
		input.value = submititemno;
		var input = document.getElementById('orderprod');
		input.value = submitprod;
		var input = document.getElementById('orderprice');
		input.value = submitprice;
		var input = document.getElementById('orderpricetotal');
		input.value = submitpricetotal;
		var input = document.getElementById('ordertotal');
		input.value = format_price(sub_total);
		var input = document.getElementById('ordervat');
		input.value = format_price(vat);
		var input = document.getElementById('ordertotalnovat');
		input.value = format_price(sub_totalnovat);
	}
}
function build_confirmAddressLine(elm_tbody, label_id, value_id) {
	var cell, row;
	row = create_element(elm_tbody, 'TR');
	cell = create_element_filled(row, 'TD', document.getElementById(label_id).innerHTML);
	cell.setAttribute('width', '25%')
	cell = create_element_filled(row, 'TD', document.getElementById(value_id).value);
}
function build_confirmAddress(container_id) {
	var elm_parent = document.getElementById(container_id);
	elm_parent.innerHTML = '';
	append_text(elm_parent, document.getElementById('iToptext').innerHTML)
	
	var elm_table = create_element(elm_parent, 'TABLE');
	elm_table.setAttribute('border', '0');
	elm_table.setAttribute('cellPadding', '0');
	elm_table.setAttribute('cellSpacing', '0');
	// we have to have a tbody for some reason
	var elm_tbody = create_element(elm_table, 'TBODY');
	// add rows
	build_confirmAddressLine(elm_tbody, 'lname', 'name')
	build_confirmAddressLine(elm_tbody, 'laddress', 'address')
	build_confirmAddressLine(elm_tbody, 'lzip', 'zip')
	build_confirmAddressLine(elm_tbody, 'lcity', 'city')
	build_confirmAddressLine(elm_tbody, 'lphone', 'phone')
	build_confirmAddressLine(elm_tbody, 'lprojectdescription', 'projectdescription')
	build_confirmAddressLine(elm_tbody, 'lreference', 'reference')
	build_confirmAddressLine(elm_tbody, 'lrequisition', 'requisition')
	build_confirmAddressLine(elm_tbody, 'leannumber', 'eannumber')
	build_confirmAddressLine(elm_tbody, 'lemail', 'email')
	try {
		if (document.getElementById('deliveryIsDifferent').checked) {
			append_text(elm_parent, document.getElementById('dToptext').innerHTML)
			var elm_table = create_element(elm_parent, 'TABLE');
			elm_table.setAttribute('border', '0');
			elm_table.setAttribute('cellPadding', '0');
			elm_table.setAttribute('cellSpacing', '0');
		
			// we have to have a tbody for some reason
			var elm_tbody = create_element(elm_table, 'TBODY');
			build_confirmAddressLine(elm_tbody, 'ldname', 'dname')
			build_confirmAddressLine(elm_tbody, 'ldaddress', 'daddress')
			build_confirmAddressLine(elm_tbody, 'ldzip', 'dzip')
			build_confirmAddressLine(elm_tbody, 'ldcity', 'dcity')
	//		build_confirmAddressLine(elm_tbody, 'ldphone', 'dphone')
		}
	} catch(e) {}
}
/////////////////////////////////////////////////////////////////////////////
// DOM helper stuff
function create_element(parent, type){
	var elm = document.createElement(type);
	parent.appendChild(elm);
	return elm;
}
function create_element_filled(parent, type, contents){
	var elm = document.createElement(type);
	parent.appendChild(elm);
	elm.appendChild(document.createTextNode(contents));
	return elm;
}
function replace_contents(node, newnode){
	if (node.childNodes.length > 0){
		node.replaceChild(newnode, node.childNodes[0]);
	}else{
		node.appendChild(newnode);
	}
}
function append_text(node, contents){
	node.appendChild(document.createTextNode(contents));	
}
/////////////////////////////////////////////////////////////////////////////
// format stuff
function format_price(price){
	var s = new String(Math.round(price*100));
	var pence = s.substr(s.length-2);
	var pounds = s.substr(0, s.length-2);
	pounds = commaify(pounds);
	if (pence.length == 0) pence = '00';
	if (pence.length == 1) pence = '0'+pence;
	if (pounds.length == 0) pounds = '0';
	return g_currency + pounds + g_decimal + pence;
}
function commaify(s){
	if (s.length <= 3) return s;
	var out = s.substr(s.length-3);
	s = s.substr(0, s.length-3);
	while(s.length > 0){
		out = s.substr(s.length-3) + g_thousand + out;
		if (s.length > 3){
			s = s.substr(0, s.length-3);
		}else{
			s = '';
		}
	}
	return out;
}