// <<<<<<< modified
// $Id: form_scripts.js 4215 2007-10-11 06:22:09Z zeke $
// =======|======= 
// $Id: form_scripts.js 5963 2008-09-19 12:35:23Z brook $
// >>>>>>> latest

//
// Extend wrapper
//
Object.extend = function(source, destination)
{
	//override source object properties with props of new object
	for (k in destination) {
		source[k] = destination[k];
	}

	return source;
}

$A = Array.from = function(iterable)
{
	if (!iterable) {
		return [];
	}

	if (iterable.toArray) {
		return iterable.toArray();
	} else {
		var results = [];
		for (var i = 0, length = iterable.length; i < length; i++) {
			results.push(iterable[i]);
		}

		return results;
	}
}

// --- Javascript prototypes ----------

// str_replace prototype wrapper
String.prototype.str_replace = function(src, dst)
{

	return this.toString().split(src).join(dst);
}

String.prototype.trim = function()
{
	return this.replace(/^\s+|\s+$/g, '');
}


// object bind prototype
Function.prototype.bind = function()
{
	var __method = this;
	var args = $A(arguments);
	var object = args.shift();
	return function() {
		return __method.apply(object, args.concat($A(arguments)));
	}
}

// load htmlarea
// Automatically calculates the editor base path based on the current URL.
var html_editor_url = document.location.pathname.substring(0,document.location.pathname.lastIndexOf('/')) + '/classes/fckeditor/';
var document_loaded = false;
var fn_inheritance = {};
var html_editor_window;
var html_editor_id;
var queries_stack = [];
var active_queries = 0;

//
// Global definitions
//

function fn_add_event(elm, event, func)
{
	if (elm.attachEvent) {
		elm.attachEvent('on' + event, func);
	} else if (elm.addEventListener) {
		elm.addEventListener(event, func, true);
	} else {
		elm['on' + event] = func;
	}
}

//
// Show/hide any tag by its id.
// parameters:
// id - element id
// @status - can be true (expand) or false (collapse)
function fn_show_tag(id, status, stop_listen)
{
	if (document.getElementById(id)) {
		if (status == true || status == false) {
			document.getElementById(id).style.display = (status == true)?"none":"";
		} else {
			document.getElementById(id).style.display = (document.getElementById(id).style.display == "")?"none":"";
		}
	}
	if (stop_listen == true) {
		window.onscroll = '';
	}
}

function fn_disable_elms(ids, status)
{
	for(var i in ids){
		if (document.getElementById(ids[i])){
			document.getElementById(ids[i]).disabled = status;
		}
	}
}

//
// Change section and
// id - section id

function fn_show_section(id, scts, separate_form, redraw_all)
{
	for (i in scts)
	{
		// Hide empty tabs
		if (document.getElementById('content_'+i) && document.getElementById('content_'+i).innerHTML.trim() == '') {
			document.getElementById('content_'+i).style.display = 'none';
			document.getElementById('tab_'+i+'_bg').style.display = 'none';
		}

		if (i == id) {
			if (document.getElementById('product_save_button')) {
				document.getElementById('product_save_button').style.display = (separate_form == 'Y') ? 'none' : '';
			}
			if (document.getElementById('content_'+i)) {
				document.getElementById('content_'+i).style.display = '';
			}
			document.getElementById('tab_'+i+'_bg').className = 'section-active-tab-bg';
			if (document.getElementById('tab_'+i+'_left')){
				document.getElementById('tab_'+i+'_left').src = tab_left_active_image_path;
			}
			if (document.getElementById('tab_'+i+'_right')){
				document.getElementById('tab_'+i+'_right').src = tab_right_active_image_path;
			}
			if (document.getElementsByName('selected_section')) {
				elms = document.getElementsByName('selected_section');
				for (var k=0; k<elms.length; k++) {
					elms[k].value = id;
				}
			}
			if (scts[i].tab_type == 'ajax') {
				var tab = document.getElementById('tab_'+i);
				tab.section_id = i;
				tab.onclick = function (event) {fn_show_section(this.section_id, sections, sections[this.section_id]['separate_form']);};
				scts[i].tab_type == 'js_switch';
			}
		} else {
			if (document.getElementById('tab_'+i+'_bg').className == 'section-active-tab-bg' || redraw_all) {
				if (document.getElementById('content_'+i)) {
					document.getElementById('content_'+i).style.display = 'none';
				}
				document.getElementById('tab_'+i+'_bg').className = 'section-inactive-tab-bg';
				if (document.getElementById('tab_'+i+'_left')){
					document.getElementById('tab_'+i+'_left').src = tab_left_image_path;
				}
				if (document.getElementById('tab_'+i+'_right')){
					document.getElementById('tab_'+i+'_right').src = tab_right_image_path;
				}
			}
		}
	}
}

//
// Expand/collapse row
// @tag_id - tag identifier that should be expanded/collapsed
// @flag - can be 1 (expand) or -1 (collapse)
function fn_invert_row(tag_id, flag)
{
	fn_show_tag(tag_id, flag);
	fn_show_tag('plus' + tag_id, flag);
	fn_show_tag('minus' + tag_id, flag);
}

//
// Expand/collapse all rows in list
// @tag_id - tag identifier of list that should be expanded or collapsed
// @flag - can be 1 (expand) or -1 (collapse)
function fn_invert_all_rows(tag_id, flag)
{
	rows = document.getElementById(tag_id).getElementsByTagName('div');

	for (i = 0; i < rows.length; i++) {
		if (typeof(rows[i].id) != 'undefined' && rows[i].id) {
			fn_show_tag(rows[i].id, flag);
			fn_show_tag('plus' + rows[i].id, !flag);
			fn_show_tag('minus' + rows[i].id, flag);
		}
	}

	fn_show_tag('minus_plus', flag);
	fn_show_tag('plus_minus', !flag);

}

//
// Sets element property to defined value (or to negative value, of value is not ser)
//
function fn_switch_elms(elms, property, value)
{
	for (i=0;i<elms.length;i++)	{
		if (document.getElementById(elms[i])) {
			document.getElementById(elms[i])[property] = (value) ? value : !document.getElementById(elms[i])[property];
		}
	}
}

//
// Check / uncheck all checkboxes in form
// @form_name - form name whose checkboxes should be checked or unchecked
// @checkbox_id - tag identifier of checkboxes that should be checked or unchecked
// @flag - can be true or false
function fn_check_all_checkboxes(form_name, flag, checkbox_id, strict)
{
	if (!checkbox_id)
		checkbox_id = 'delete_checkbox';

	if (typeof(strict) == 'undefined') {
		strict = true;
	}

	if(!(d_form = document.forms[form_name]))
		return false;

	for(i=0; i < d_form.length; i++) {
		if (d_form[i].type == 'checkbox' && fn_compare_strings(d_form.elements[i].id, checkbox_id, strict) && !d_form.elements[i].disabled) {
			d_form.elements[i].checked = flag;
		}
	}
	return true;
}

//
// Move selected elements of multiple select input
//
function fn_select_move_elements(to, from, non_movable, message)
{
	to_elm = document.getElementById(to);
	from_elm = document.getElementById(from);
	skipped_elms = [];

	if(!from_elm || !to_elm) {
		return false;
	}

	while (from_elm.selectedIndex != -1) {
		if (non_movable && non_movable[from_elm.options[from_elm.selectedIndex].value] == true)	{
			skipped_elms.push(from_elm.options[from_elm.selectedIndex].value);
			from_elm.options[from_elm.selectedIndex].selected = false;
			continue;
		}

		idx = to_elm.options.length;
		to_elm.options[idx] = new Option(from_elm.options[from_elm.selectedIndex].text, from_elm.options[from_elm.selectedIndex].value);
		to_elm.options[idx].className = from_elm.options[from_elm.selectedIndex].className;
		from_elm.options[from_elm.selectedIndex] = null;
	}

	if (skipped_elms.length > 0 && typeof(message) != 'undefined') {
		alert(message + skipped_elms.join(', '));
	}

	return true;
}

function fn_move_field(id, direction)
{
	elm = document.getElementById(id);
	var selected_idx = elm.selectedIndex;
	var total = elm.length;
	var move = true;
	var exchange_idx = 0;
	if (selected_idx != -1) {
		if ((direction == 'up' && selected_idx == 0) || direction == 'down' && selected_idx == total -1) {
			return false;
		}

		if (direction == 'up') {
			exchange_idx = selected_idx - 1;
		}

		if (direction == 'down') {
			exchange_idx = selected_idx + 1;
		}

		exchange = {text: elm.options[exchange_idx].value, value: elm.options[exchange_idx].value, classname: elm.options[exchange_idx].className};
		elm.options[exchange_idx].value = elm.options[selected_idx].value;
		elm.options[exchange_idx].text = elm.options[selected_idx].text;
		elm.options[exchange_idx].className = elm.options[selected_idx].className;

		elm.options[selected_idx].value = exchange.value;
		elm.options[selected_idx].text = exchange.text;
		elm.options[selected_idx].className = exchange.classname;

		elm.selectedIndex = exchange_idx;
	}
}

//
// Select all elements in selects input
//
function fn_select_save_elements()
{
	var args = fn_select_save_elements.arguments;

	for (i = 0; i < args.length; i++) {
		if (document.getElementById(args[i])) {
			var select = document.getElementById(args[i]);
			for(var k = select.length-1; k >= 0; k--) {
				select.options[k].selected = true;
			}
		}
	}

	return true;
}

//
// Unselect all elements in selects input
//
function fn_unselect_save_elements()
{
	var args = fn_unselect_save_elements.arguments;

	for (i = 0; i < args.length; i++) {
		if (document.getElementById(args[i])) {
			var select = document.getElementById(args[i]);
			for(var k = select.length-1; k >= 0; k--) {
				select.options[k].selected = false;
			}
		}
	}

	return true;
}


//
// Select text in text input
//
function fn_select_input(select)
{
	select.select();
}


// Compare 2 strings
// @haystack - where search
// @needle - what search
// @strict - exact compare or partial
function fn_compare_strings(haystack, needle, strict)
{
	if (strict == true) {
		return (haystack == needle);
	} else {
		return (haystack.indexOf(needle) == -1) ? false : true;
	}
}
//
// Check if there are any selected checkboxes in the form
// @form_name - form name in which checkboxes should be selected or deselected
// @checkbox_id - tag id of checkboxes that should be selected or deselected
// @no_alert - do not display notification
// @strict - compare ids strictly or partially
function fn_check_selected(form_name, checkbox_id, no_alert, strict) {
{
	if (typeof(strict) == 'undefined') {
		strict = true;
	}

	if (!checkbox_id) {
		checkbox_id = 'delete_checkbox';
	}

	if(!(d_form = document.forms[form_name])) {
		return false;
	}

	for(i=0; i < d_form.length; i++) {
		if (fn_compare_strings(d_form.elements[i].id, checkbox_id, strict)) {
			if (d_form.elements[i].checked) {
				return true;
			}
		}
	}
	if (!no_alert) {
		alert(lang.error_no_items_selected);
	}
	return false;
}																													    }

function fn_delete_selected(form_name, mode_value, no_confirmation, checkbox_id, elm_name, strict)
{

	if (typeof(strict) == 'undefined') {
		strict = true;
	}
	if (!fn_check_selected(form_name, checkbox_id, '', strict)) {
		return false;
	}
	if (!no_confirmation) {
		if (!confirm(lang.delete_confirmation)) {
			return false;
		}
	}

	if (typeof(elm_name)== 'undefined' || elm_name.length == 0) {
		elm_name = mode_name;
	}

	document.forms[form_name].elements[elm_name].value = mode_value;
	document.forms[form_name].submit();
	return true;
}

cscart_handlers = {

	document_loaded: false,
	handlers: [],

	set_handler: function()
	{
		var args = $A(this.set_handler.arguments);

		// If document is already loaded - execute function right now
		if (this.document_loaded) {
			fn = args.shift();
			if (fn)	{
				fn.apply(fn, args);
			}
		} else {
			this.handlers.push({'function': args.shift(), 'args': args});
		}
	},

	load: function()
	{
		if (this.handlers) {
			for (i=0; i<this.handlers.length; i++) {
				fn = this.handlers[i]['function'];
				if (fn)	{
					fn.apply(fn, this.handlers[i]['args']);
				}
			}
		}

		// Set flag that document is already loaded
		this.document_loaded = true;
	}
}

fn_add_event(window, 'load', cscart_handlers.load.bind(cscart_handlers));

//
// Common function to perform AJAX request
//
function fn_ajax_http_request(query, result_ids, method, data, func, caching, pending_message, loading_box)
{
	var req = new JsHttpRequest();
	var QUERIES_LIMIT = 1;

	req.caching = typeof(caching) == 'undefined' ? false : caching;
	req.silent = typeof(loading_box) == 'undefined' ? false : loading_box;
	query = fn_query_remove(query, 'result_ids');

	if (!data) {
		data = {};
	}

	if (!result_ids) {
		result_ids = [];
	}

	if (fn_check_type(result_ids, 'array') == false) {
		result_ids = [result_ids];
	}


	req.onreadystatechange = function() {
		if (req.readyState == 4) {
			var regex_all = new RegExp('<script[^>]*>([\u0001-\uFFFF]*?)</script>', 'img');
		    var regex_one = new RegExp('<script[^>]*>([\u0001-\uFFFF]*?)</script>', 'im');
			var matches = [];
			var match = '';

			if (req.responseJS.force_redirection) {
				fn_redirect(req.responseJS.force_redirection);
			}

			if (req.responseJS.html) {
				for (k in req.responseJS.html) {
					src = document.getElementById(k);
					if (!src) {
						continue;
					}

					matches = req.responseJS.html[k].match(regex_all);
					src.innerHTML =  matches ? req.responseJS.html[k].replace(regex_all, '') : req.responseJS.html[k];

					if (matches) {
						for (var i=0 ; i< matches.length ; i++ ) {
							if (matches[i].match(regex_one)[1]) {
								if (window.execScript) {
									window.execScript(matches[i].match(regex_one)[1]);
								} else {
									window.eval(matches[i].match(regex_one)[1]);
								}

							}
						}
					}
				}
			} else {
				var new_node = document.createElement('div');
				new_node.innerHTML = req.responseText;
				document.body.appendChild(new_node);
			}

			fn_ajax_update_vars(req.responseJS);

			if (func) {
				func(req.responseJS, req.responseText);
			}
			active_queries--;
			if (queries_stack.length) {
				var data = queries_stack.pop();
				fn_call_user_func_array('fn_ajax_http_request', data);
			}
		}
	}

	data.result_ids = result_ids;

	if (pending_message) {
		for (k in result_ids) {
			document.getElementById(result_ids[k]).innerHTML = pending_message;
		}
	}

	if (active_queries < QUERIES_LIMIT) {
		// Run request
		req.open(method || 'GET', query, true);
		req.send(data);
		active_queries++;
	} else {
		queries_stack.push(arguments);
	}
}

//
// Submit form using AJAX
//
function fn_ajax_form_submit(form_name, result_id, callback, pending_message)
{
	var method, action;
	var form;

	form = document.forms[form_name];
// <<<<<<< modified
// =======|======= 
	elms = form.elements;
	data = '';

	for (i = 0; i < elms.length ; i++) {
		if (elms[i].disabled == true) {
			continue;
		}
// >>>>>>> latest

// <<<<<<< modified
// =======|======= 
		if (
			(elms[i].tagName.toLowerCase() == 'input' &&
				(
					elms[i].type == 'text' ||
					elms[i].type == 'hidden' ||
					elms[i].type == 'password' ||
					(elms[i].type == 'radio' && elms[i].checked == true) ||
					(elms[i].type == 'checkbox' && elms[i].checked == true)
				)
			) ||
			(
				elms[i].tagName.toLowerCase() == 'select' ||
				elms[i].tagName.toLowerCase() == 'textarea'
			)){

				if (elms[i].tagName.toLowerCase() == 'select' && elms[i].multiple == true) {
					for (k = 0; k < elms[i].options.length ; k++) {
						if (elms[i].options[k].selected == true) {
							data += escape(elms[i].name) + '=' + encodeURIComponent(elms[i].options[k].value) + '&';
						}
					}
				} else {
					data += escape(elms[i].name) + '=' + encodeURIComponent(elms[i].value) + '&';
				}
		}
	}

// >>>>>>> latest
	for (i=0; i<form.attributes.length; i++) {
		if (form.attributes[i].name.toLowerCase() == 'action') {
			action = form.attributes[i].value;
		}
		if (form.attributes[i].name.toLowerCase() == 'method') {
			method = form.attributes[i].value;
		}
	}

	fn_ajax_http_request(action, result_id, method, {'form': form }, callback || null, null, pending_message || '');
}

function fn_get_window_sizes()
{
	var iebody = (document.compatMode && document.compatMode != 'BackCompat')? document.documentElement : document.body;

	return {
		'offset_x'   : iebody.scrollLeft ? iebody.scrollLeft : (self.pageXOffset ? self.pageXOffset : 0),
		'offset_y'   : iebody.scrollTop  ? iebody.scrollTop : (self.pageYOffset ? self.pageYOffset : 0),
		'view_height': iebody.clientHeight ? iebody.clientHeight : self.innerHeight,
		'view_width' : iebody.clientWidth ? iebody.clientWidth : self.innerWidth,
		'height'     : iebody.scrollHeight ? iebody.scrollHeight : window.height,
		'width'      : iebody.scrollWidth ? iebody.scrollWidth : window.width
	}
}

function fn_open_editor(id, object, area) {
	html_editor_id = id;
//	html_editor_object = object;
//	html_editor_area = area;

	if (html_editor_window) {
		html_editor_window.close();
	}
	html_editor_window = window.open(html_editor_url+"popup.html?lang="+cart_language+'&btn_save='+lang['save']+'&btn_close='+lang['close'],"html_ed","status=no,top=100,left=100,height=600,width=850,resizable=yes");
	html_editor_window.focus();
}


// Check email address for validity
function fn_is_email(email) {
	var filter=/^([\w-+=_]+(?:\.[\w-+=_]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i;
	if (filter.test(email)) {
		return true;
	} else {
		return false;
	}
}

//
// Checks if the value is blank
//
function fn_is_blank(val){
	if (val==null){
		return true;
	}
	for (var i=0; i<val.length; i++) {
		if((val.charAt(i)!="\t")&&(val.charAt(i)!="\n")&&(val.charAt(i)!="\r")){
			return false;
		}
	}
	return true;
}

//
// Checks if the value is integer
//
function fn_is_integer(val)
{
	if(fn_is_blank(val)){
		return false;
	}
	for(var i=0; i<val.length; i++){
		if (!fn_is_digit(val.charAt(i))) {
			return false;
		}
	}
	return true;
}

//
// Checks if the value is digit
//
function fn_is_digit(num)
{
	if(num.length>1){
		return false;
	}
	var string="1234567890";
	if (string.indexOf(num)!=-1){
		return true;
	}
	return false;
}

//
// Checks if the value is phone number
//
function fn_is_phone(phone)
{
	return phone.match(/^\(?\d{3}\)?[ ]?[\d-]*$/gi) ? true : false;
}


function fn_display_trigger()
{
	var elms = document.getElementsByTagName('SPAN');
	var args = fn_display_trigger.arguments;

	for (i=0;i<elms.length;i++) {
		for (j=0;j<args.length;j++)	{
			if (elms[i].id.indexOf(args[j]) == 0) {
				elms[i].style.display = (elms[i].style.display == 'none') ? '' : 'none';
			}
		}
	}
}

function fn_ajax_update_vars(response)
{
	if (response.update_vars)	{
		for (k in response.update_vars) {
			elms = document.getElementsByName(k);
			if (elms.length>0) {
				for (var i=0; i<elms.length; i++) {
					elms[i].value = response.update_vars[k];
				}
			}
		}
	}

	if (response.notification) {
		var elm;
		document.getElementById('ajax_message_container').innerHTML = '';
		for (k in response.notification) {
			elm = document.createElement('div');
			elm.innerHTML = response.notification[k].message;
			elm.className = 'ajax-notification-' + response.notification[k].type.toLowerCase();
			document.getElementById('ajax_message_container').appendChild(elm);
		}

		if (browser_info.browser == 'Internet Explorer' && browser_info.version < 7) {
			document.getElementById('ajax_message').onpropertychange = function() { fn_underlay_iframe('ajax_message'); };
		}

		window.onscroll = function() { fn_align_element('ajax_message') };
		fn_align_element('ajax_message');

		if (!window._timeouts) {
			window._timeouts = {};
		}
		if (window._timeouts['ajax_message']) {
			window.clearTimeout(window._timeouts['ajax_message']);
		}
		window._timeouts['ajax_message'] = window.setTimeout("fn_show_tag('ajax_message', true, true);", 4000);
		document.getElementById('ajax_message').onclick = function() {
			window.onscroll = null;
			this.style.display = 'none';
		}
	}

	if (typeof(fn_check_all_exceptions) == 'function') {
		fn_check_all_exceptions(false);
	}
}

function fn_underlay_iframe(id)
{
	var pname = event.propertyName
	var elm = document.getElementById(id);
	var iframe;
	if (!document.getElementById('if_' + id)) {
		elm.style.zIndex = 9999;
		iframe = document.createElement('IFRAME');
		iframe.setAttribute('src', '');
		iframe.setAttribute('id', 'if_' + id);
		iframe.style.position = 'absolute';
		iframe.style.zIndex = elm.style.zIndex - 1;
		iframe.style.display = 'none';
		document.body.appendChild(iframe);
	} else {
		iframe = document.getElementById('if_' + id);
	}

	if (pname == 'style.display') {
		if (elm.style.display == 'none' && document.getElementById('if_' + id)) {
			document.getElementById('if_' + id).style.display = 'none';
		} else {
			iframe.style.left = elm.offsetLeft + 'px';
			iframe.style.top = elm.offsetTop + 'px';
			iframe.style.width = elm.offsetWidth + 'px';
			iframe.style.height = elm.offsetHeight + 'px';
			iframe.style.display = '';
		}
	}
	else if (pname == 'style.top' || pname == 'style.left') {
		iframe.style.top = elm.style.top;
		iframe.style.left = elm.style.left;
		iframe.style.width = elm.offsetWidth;
		iframe.style.height = elm.offsetHeight;
	}
}

function fn_hotkeys(evt)
{
	var char_code = (evt.which) ? evt.which : event.keyCode;

	// CTRL + ' - show search by pid window
	if (evt.ctrlKey && char_code == 222) {
		if (result = prompt('Product ID', '')) {
			fn_redirect(index_script+'?'+target_name+'=products&'+mode_name+'=update&product_id='+result);
		}
	}
}

function fn_format_num(expr, decplaces, primary)
{
	var num = '';
	var decimals = '';
	var tmp = 0;
	var k = 0;
	var i = 0;
	var thousands_separator = (primary == true) ? currencies.primary.thousands_separator : currencies.secondary.thousands_separator;
	var decimals_separator = (primary == true) ? currencies.primary.decimals_separator : currencies.secondary.decimals_separator;
	var decplaces = (primary == true) ? currencies.primary.decimals : currencies.secondary.decimals;

	expr = expr.toString();
	tmp = parseInt(expr);
	num = tmp.toString();

	// Separate thousands
	if (num.length >= 4 && thousands_separator != '') {
		tmp = new Array();
		for (var i=num.length-3; i>-4 ; i=i-3) {
			k = 3;
			if (i<0) {
				k = 3 + i;
				i=0;
			}
			tmp.push(num.substr(i,k));
			if (i==0) {
				break;
			}
		}
		num = tmp.reverse().join(thousands_separator);
	}

	// Add decimals
	if (decplaces > 0) {
		if (decimals_separator!= '' && expr.indexOf('.') != -1) {
			decimals = expr.substr(expr.indexOf('.')+1, decplaces);
		} else {
			decimals = '0';
		}

		if (decimals.length < decplaces) {
			tmp = decimals.length;
			for (i=0; i<decplaces-tmp; i++) {
				decimals += '0';
			}
		}
		num += decimals_separator + decimals;
	}

	return num;
}

function fn_query_remove(query, vars)
{
	if (typeof(vars) == 'undefined') {
		return query;
	}
	if (!fn_check_type(vars, 'array')) {
		vars = [vars];
	}
	var start = query;
	if (query.indexOf('?') >= 0) {
		start = query.substr(0, query.indexOf('?'));
		var search = query.substr(query.indexOf('?'));
		var srch_array = search.split("&");
		var temp_array = new Array();
		var concat = true;
		var amp = '';
		for (var i = 0; i < srch_array.length; i++) {
			temp_array = srch_array[i].split("=");
			concat = true;
			for (var j = 0; j < vars.length; j++) {
				if (vars[j] == temp_array[0] || temp_array[0].indexOf(vars[j]+'[') != -1) {
					concat = false;
					break;
				}
			}
			if (concat == true) {
				start += amp + temp_array[0] + '=' + temp_array[1]
			}
			amp = '&';
		}
	}
	return start;
}

//
// Open pop-up window with detailed image
//
function fn_open_popup_image(popup_script, image_width, image_height)
{
	if (image_width == 0) {
		image_width = 400;
	}
	if (image_height == 0) {
		image_height = 400;
	}
	image_width += 10;
	image_height += 10;

	if ((typeof(handle_popup_image)!='undefined') && (handle_popup_image.closed == false)) {
		handle_popup_image.close();
	}
    handle_popup_image = window.open(popup_script, 'popup_image', 'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,left=200,top=100,width=' + image_width + ',height=' + image_height + ',resizable=yes');
}

function fn_align_element()
{
	var ids = $A(arguments);
	var w = fn_get_window_sizes();
	for (k in ids) {
		msg = document.getElementById(ids[k]);
		if (msg) {
			msg.style.display = 'block';
			msg.style.top = w.offset_y + (w.view_height - msg.offsetHeight) / 2 + 'px';
			msg.style.left = w.offset_x + (w.view_width - msg.offsetWidth) / 2 + 'px';
		}
	}
}

function fn_blink(cycle)
{
	if (cycle > 6) {
		be.style.visibility = 'visible';
		clearTimeout(timeout);
		return;
	}
	cycle++;
	if (be = document.getElementById('blinking_elm')) {
		be.style.visibility = (be.style.visibility == 'visible') ? 'hidden' : 'visible';
		timeout = window.setTimeout('fn_blink('+cycle+')', 500);
	}
}

function fn_format_price(value, decplaces)
{
	if (typeof(decplaces) == 'undefined') {
		decplaces = 2;
	}

	value = parseFloat(value.toString()) + 0.00000000001;
	return value.toFixed(decplaces);
}

function fn_check_type(src, expected_type)
{
	expected_type = expected_type.toLowerCase();
	src_type = (''+typeof(src)).toLowerCase();
	var res;
	switch (expected_type) {
		case "object":
			res = (src instanceof Object) || (src_type.indexOf(expected_type) != -1);
			break;
		case "array":
			res = (src instanceof Array) || (src_type.indexOf(expected_type) != -1);
			break;
		default:
			res = src_type.indexOf(expected_type) != -1;
	}
	return res;
}

function fn_addons_inheritance(caller)
{
	if (fn_inheritance[caller]){
		for(var i in fn_inheritance[caller]){
			if(typeof(window[fn_inheritance[caller][i]]) == 'function' && typeof(window[caller]) == 'function'){
				fn_call_user_func_array(fn_inheritance[caller][i], eval(caller).arguments);
			}
		}
	}
}

function fn_call_user_func_array(func, params)
{
	// create function object
	var __function = eval(func);

	return __function.apply(func, params);
}

function fn_get_function_name(body)
{
    var body = new String (body);
    return body.substring(9,body.indexOf('(',9)).replace(/\s/g, '');
}


// -------- Cookie functions collection -------------

function fn_get_cookie_val (offset)
{
	var endstr = document.cookie.indexOf (";", offset);
	if (endstr == -1) {
		endstr = document.cookie.length;
	}
	return unescape(document.cookie.substring(offset, endstr));
}

function fn_get_cookie(name)
{
	var arg = name + "=";
	var alen = arg.length;
	var clen = document.cookie.length;
	var i = 0;
	while (i < clen) {
		var j = i + alen;
		if (document.cookie.substring(i, j) == arg) {
			return fn_get_cookie_val(j);
		}

		i = document.cookie.indexOf(" ", i) + 1;
		if (i == 0) {
			break;
		}
	}
	return null;
}

function fn_set_cookie(name, value, expires, path, domain, secure)
{
	document.cookie = name + "=" + escape (value) + ((expires) ? "; expires=" + expires.toGMTString() : "") + ((path) ? "; path=" + path : "") + ((domain) ? "; domain=" + domain : "") + ((secure) ? "; secure" : "");
}

function fn_delete_cookie(name, path, domain)
{
	if (fn_get_cookie(name)) {
		document.cookie = name + "=" + ((path) ? "; path=" + path : "") + ((domain) ? "; domain=" + domain : "") + "; expires=Thu, 01-Jan-70 00:00:01 GMT";
	}
}
// /-------- Cookie functions collection -------------


//
// -------- Web-form object -------------------
//

//
// This object represents maintenance routines for web-form
//
function cscart_form(name, use_ajax, result_id, callback, bind_keypress)
{
	this.name = name;
	this.use_ajax = use_ajax || false;
	this.result_id = result_id || '';
	this.required_fields = [];
	this.callback = callback || null;
	this.onsubmit = [];
	this.extra_ids = [];
	this.css_cache = [];
	this.failed_message = '';
	this.pending_message = '';

	// Attach submit event to all form text elements
	if (bind_keypress) {
		cscart_handlers.set_handler(this.bind_keys.bind(this));
	}
}

cscart_form.prototype = {

	// Set onkeypress event for all text elements to allow send form by hitting ENTER key
	bind_keys: function()
	{
		var func = function(evt) {
			var char_code = (window.event) ?  window.event.keyCode : evt.which;
			var elm = (window.event) ? window.event.srcElement : evt.target;

			if (char_code == 13) {
				elm._form_object.submit();
			}
		}

		form = document.forms[this.name];
		if (!form) {
			return false;
		}
		form.onsubmit = function() {return false};
		form.setAttribute('autocomplete', 'off');
		for (k = 0 ; k < form.elements.length ; k++) {
			if ((form.elements[k].tagName.toLowerCase() == 'input' && (form.elements[k].type.toLowerCase() == 'text' || form.elements[k].type.toLowerCase() == 'password')))	{
				form.elements[k]._form_object = this;
				fn_add_event(form.elements[k], 'keypress', func);
			}
		}

	},
	// Put form field(s) to required list
	set_required_fields: function ()
	{
		for (i=0;i<this.set_required_fields.arguments.length;i++) {
			if (this.set_required_fields.arguments[i] != '') {
				this.required_fields[this.set_required_fields.arguments[i]] = 'Y';
			}
		}
	},

	// Remove form field from required list
	uset_required_fields: function ()
	{
		for (i=0;i<this.uset_required_fields.arguments.length;i++) {
			delete this.required_fields[this.uset_required_fields.arguments[i]];
		}
	},

	// Put form field to extra checking list
	set_extra: function (f_id, type)
	{
		this.extra_ids[f_id] = type;
	},

	// Remove form field from required list
	uset_extra: function ()
	{
		for (i=0;i<this.uset_extra.arguments.length;i++) {
			delete this.extra_ids[this.uset_extra.arguments[i]];
		}
	},

	// Mark all required fields
	set_required_marks: function()
	{
		for (field in this.required_fields) {
			if (document.getElementById(field) && document.getElementById('mark_'+field)) {
				document.getElementById('mark_'+field).innerHTML = "*";
			}
		}
	},

	// This function checks required fields and set a warning mark if something wrong
	check_fields: function()
	{
		var is_ok = true;
		var set_mark = false;
		var error_messages = [];
		var tmp = '';

		elms = document.forms[this.name].elements;
		for (i=0; i<elms.length; i++) {
			set_mark = false;

			// Check the email field
			if (this.extra_ids[elms[i].id] == 'E') {
				if (fn_is_email(elms[i].value) == false) {
					if (this.required_fields[elms[i].id] == 'Y' || fn_is_blank(elms[i].value) == false) {
						error_messages.push(lang.error_email_invalid);
						is_ok = false;
						set_mark = true;
					}
				}
			/*/ Check the domain name field
			} else if (this.extra_ids[elms[i].id] == 'U') {
				if ((tmp = fn_check_domain_name(elms[i].value, lang.domain_invalid_0, lang.domain_invalid_1, lang.domain_invalid_2, lang.domain_invalid_3, true)) != true) {
					if (this.required_fields[elms[i].id] == 'Y' || fn_is_blank(elms[i].value) == false) {
						error_messages.push(tmp);
						is_ok = false;
						set_mark = true;
					}
				}*/
			// Check the phone field
			} else if (this.extra_ids[elms[i].id] == 'P') {
				if (fn_is_phone(elms[i].value) == false) {
					if (this.required_fields[elms[i].id] == 'Y' || fn_is_blank(elms[i].value) == false) {
						error_messages.push(lang.phone_number_invalid);
						is_ok = false;
						set_mark = true;
					}
				}

			// Check for integer field
			} else if (this.extra_ids[elms[i].id] == 'I') {
				if (fn_is_integer(elms[i].value) == false) {
					if (this.required_fields[elms[i].id] == 'Y' || fn_is_blank(elms[i].value) == false) {
						is_ok = false;
						set_mark = true;
					}
				}
			// Check for multiple selectbox
			} else if (this.extra_ids[elms[i].id] == 'M' && elms[i].length == 0) {
				is_ok = false;
				set_mark = true;

			// Select all items in multiple selectbox
			} else if (this.extra_ids[elms[i].id] == 'A') {
				if (elms[i].length == 0) {
					is_ok = false;
					set_mark = true;
				} else {
					var k = 0;
					for	(k=0; k<elms[i].length; k++) {
						elms[i].options[k].selected = true;
					}
				}
			// Custom checking function
			} else if (typeof(this.extra_ids[elms[i].id]) == 'function') {
				var fn = this.extra_ids[elms[i].id];
				var _result = fn.call(fn, elms[i].value);
				if (_result != true) {
					error_messages.push(_result);
					is_ok = false;
					set_mark = true;
				}
			// Check for blank value
			} else {

				// Check for multiple selectbox
				if (elms[i].tagName == 'INPUT' || elms[i].tagName == 'TEXTAREA' || elms[i].tagName == 'SELECT') {
					if (this.required_fields[elms[i].id] == 'Y') {
						if ((elms[i].tagName == 'INPUT' && elms[i].type == 'checkbox' && elms[i].checked == false) || fn_is_blank(elms[i].value) == true) {
							is_ok = false;
							set_mark = true;
						}
					}
				}

			}
			if (elms[i].id != '') {
				if (!this.css_cache[elms[i].id]) {
					this.css_cache[elms[i].id] = document.getElementById(elms[i].id).className;
				}
				document.getElementById(elms[i].id).className = this.css_cache[elms[i].id] + ((set_mark == true) ? ' form-elm-required' : '');
			}
		}

		if (is_ok == false) {
			var message = '';
			for (k in error_messages) {
				message += '- ' + error_messages[k] + "\n";
			}
			alert(message + '- ' + lang.error_required_fields);
		}
		return is_ok;
	},

	// Add form onsubmit handler
	set_onsubmit: function()
	{
		this.onsubmit.push(this.set_onsubmit.arguments);
	},

	// Clear onsubmit list
	clear_onsubmit: function()
	{
		this.onsubmit = [];
	},

	// Submit the form
	submit: function()
	{
		var is_ok = true;
		if (this.onsubmit) {
			for (i=0; i<this.onsubmit.length; i++) {
				var args = $A(this.onsubmit[i]);
				var fn = args.shift();
				if (fn.apply(fn, args) == false) {
					is_ok = false;
					break;
				}
			}
		}

		if (is_ok == true && this.check_fields() == true) {
			if (this.use_ajax == true) {
				fn_ajax_form_submit(this.name, this.result_id, this.callback, this.pending_message);
			} else {
				document.forms[this.name].submit();
			}
		} else if (this.failed_message) {
			alert(this.failed_message);
		}
	},

	// Set field value
	set_field_value: function(field, value)
	{
		var i = 0;
		if (document.forms[this.name].elements[field]) {
			document.forms[this.name].elements[field].value = value;
		} else { // This fixes the bug when form is created in run-time
			elms = document.forms[this.name].elements;
			for (i=0 ; i < elms.length ; i++ ) {
				if (elms[i].name == field) {
					elms[i].value = value;
					break;
				}
			}
		}
	},
	get_field_value: function(field)
	{
		if (document.forms[this.name].elements[field]) {
			return document.forms[this.name].elements[field].value;
		}
	},

	// Set message that appears when submit fails
	set_failed_message: function(message)
	{
		this.failed_message = message;
	}
}



function fn_switch_box(id, forced_closure)
{
	elm = document.getElementById(id);
	if (!elm) {
		return false;
	}

	// visible
	if (elm.style.display == '' || forced_closure == true) {
		fn_set_cookie(id, 1);
		elm.style.display = 'none';
	} else {
		fn_delete_cookie(id);
		elm.style.display = '';
	}

	document.getElementById('img_open_'+id).style.display = (elm.style.display == 'none') ? '' : 'none';
	document.getElementById('img_close_'+id).style.display = elm.style.display;
}

function fn_close_notification(key, close_session)
{
	if (close_session) {
		fn_ajax_http_request(index_script + '?close_notification='+key);
	}
	fn_show_tag('notification_'+key, true);
}

function fn_redirect(url)
{
	if (document.getElementsByTagName('base')[0]) {
		url = document.getElementsByTagName('base')[0].href + url;
	}
	window.location.href = url;
}

/**
* Function : fn_print_array()
* Arguments: The data - array, hash(associative array), object
*    The level - OPTIONAL
* Returns  : The textual representation of the array.
* This function was inspired by the print_r function of PHP.
* This will accept some data as the argument and return a
* text that will be a more readable version of the
* array/hash/object that is given.
*/
function fn_print_r(value)
{
	alert(fn_print_array(value));
}

function fn_print_array(arr,level)
{
	var dumped_text = "";
	if(!level) {
		level = 0;
	}

	//The padding given at the beginning of the line.
	var level_padding = "";
	for(var j=0; j < level+1; j++) {
		level_padding += "    ";
	}

	if(typeof(arr) == 'object') { //Array/Hashes/Objects
		for(var item in arr) {
			var value = arr[item];

			if(typeof(value) == 'object') { //If it is an array,
				dumped_text += level_padding + "'" + item + "' ...\n";
				dumped_text += fn_print_array(value,level+1);
			} else {
				dumped_text += level_padding + "'" + item + "' => \"" + value + "\"\n";
			}
		}
	} else { //Stings/Chars/Numbers etc.
		dumped_text = arr+" ("+typeof(arr)+")";
	}

	return dumped_text;
}

function fn_html_entity_decode(str)
{
    var ta = document.createElement("TEXTAREA");
    ta.innerHTML = str.replace(/</g,"&lt;").replace(/>/g,"&gt;");

    return ta.value;
}