var hideproductTimeout;

function show_product_finder()
{
	if (gHideSelects == true) {
		hideSelectBoxes();
	}
	clearTimeout(hideproductTimeout);
	if (document.getElementById('product-finder').style.display == 'none' || document.getElementById('product-finder').style.display == '') {
		document.getElementById('product-finder').style.display = 'block';
	}
	return false;
}

function hide_product_finder()
{
	if (gHideSelects == true) {
		displaySelectBoxes();
	}
	hideproductTimeout = setTimeout("hide_product_finder_timed()", 500);
	return false;
}

function hide_product_finder_timed() {
	document.getElementById('product-finder').style.display = 'none';
}

function product_finder_showcats()
{
	return product_finder_select_args(true, arguments);
}

function product_finder_select()
{
	return product_finder_select_args(false, arguments);
}

function product_finder_select_args(showCats, args)
{
	var url = "/product-finder-ajax.php?";
	if(showCats)
		url += "showcats=1&";
	for(var i = 0; i < args.length; i++)
		url += "cat"+(i+1)+"=" + args[i] + "&";
	url += "r=" + Math.random();
	ajax_loadContent('product-finder', url);
	return false;
}

function set_class_if_present(div_id, class_name)
{
	if(document.getElementById(div_id) != undefined)
	    document.getElementById(div_id).className = class_name;
}

function get_class_if_present(div_id)
{
	if(document.getElementById(div_id) != undefined)
		return document.getElementById(div_id).className;
}

function hide_if_present(div_id)
{
	if(document.getElementById(div_id) != undefined)
	    document.getElementById(div_id).style.display = 'none';
}

function set_tab_off(tab_id)
{
	set_class_if_present(tab_id, '');
}

function show_tab(div_id) {
    hide_if_present('product-description');
	hide_if_present('specifications');
	hide_if_present('accessories');
	hide_if_present('consumables');
	hide_if_present('downloads');
	
	set_tab_off('product-description-tab');
	set_tab_off('specifications-tab');
	set_tab_off('accessories-tab');
	set_tab_off('consumables-tab');
	set_tab_off('downloads-tab');

    document.getElementById(div_id).style.display = 'block';
	document.getElementById(div_id + '-tab').className = 'on';
}

function enlarge_image()
{
	document.getElementById('lrg-img').style.display='block';
	return false;
}

function close_enlarged_image()
{
	document.getElementById('lrg-img').style.display='none';
	return false;
}

/*function show_rh_panel(panel)
{
	var previousPanel = '';
	if(get_class_if_present("login-rh-panel") == "panel account")
		previousPanel = "login";
	if(get_class_if_present("wishlist-rh-panel") == "panel wish")
		previousPanel = "wishlist";
	if(get_class_if_present("basket-rh-panel") == "panel sml-basket")
		previousPanel = "basket";
	
	if(panel != previousPanel) {
		set_class_if_present("login-rh-panel", panel == "login" ? "panel account" : "panel account close");
		set_class_if_present("wishlist-rh-panel", panel == "wishlist" ? "panel wish" : "panel wish close");
		set_class_if_present("basket-rh-panel", panel == "basket" ? "panel sml-basket" : "panel sml-basket close");
	} else {
		if(panel == 'basket')
			window.location.href = "/basket.php";
		else if(panel == 'login')
			window.location.href = "/login.php";
		else if(panel == 'wishlist')
			window.location.href = "/wishlist.php";
	}

	return false;
}*/

/* 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;
		this.requestFile = file;
		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 = "";
							/* These lines were added by Alf Magne Kalleland ref. info on the sack home page. It prevents memory leakage in IE */

							delete self.xmlhttp['onreadystatechange'];
							self.xmlhttp=null;
							self.responseStatus=null;
							self.response=null;
							self.responseXML=null;
														
							break;
					}
				};

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

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

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

var dynamicContent_ajaxObjects = new Array();

function ajax_loadContent(divId,url)
{	
	var ajaxIndex = dynamicContent_ajaxObjects.length;
	dynamicContent_ajaxObjects[ajaxIndex] = new sack();
	
	if(url.indexOf('?')>=0){
		dynamicContent_ajaxObjects[ajaxIndex].method='GET';
		var string = url.substring(url.indexOf('?'));
		url = url.replace(string,'');
		string = string.replace('?','');
		var items = string.split(/&/g);
		for(var no=0;no<items.length;no++){
			var tokens = items[no].split('=');
			if(tokens.length==2){
				dynamicContent_ajaxObjects[ajaxIndex].setVar(tokens[0],tokens[1]);
			}	
		}	
		url = url.replace(string,'');
	}

	
	dynamicContent_ajaxObjects[ajaxIndex].requestFile = url;	// Specifying which file to get
	dynamicContent_ajaxObjects[ajaxIndex].onCompletion = function(){ ajax_showContent(divId,ajaxIndex,url); };	// Specify function that will be executed after file has been found
	dynamicContent_ajaxObjects[ajaxIndex].runAJAX();		// Execute AJAX function	
}

function ajax_showContent(divId,ajaxIndex,url)
{
	var targetObj = document.getElementById(divId);
	targetObj.innerHTML = dynamicContent_ajaxObjects[ajaxIndex].response;
	dynamicContent_ajaxObjects[ajaxIndex] = false;
}