/**
 * teclan Plugin functionality library.
 *
 * @version 1.0.0
 * @date 21/09/09
 * @author Lewis A MacKenzie
 * @copyright teclan 2010
 */

 
/***************************************************************/
/*********************** Common Functions **********************/
/***************************************************************/
/**
 * Shortcut for document.getElmementById()
 */
var $tb = function(id) {
  return document.getElementById(id);
};

/**
 * Returns all elements of type 'nodeType' with class 'className'.
 */
var $$tb = function(nodeType, className) {
  var ret = new Array();
  var arr = document.getElementsByTagName(nodeType.toUpperCase());
  for (var i = 0; i < arr.length; i++) {
    if (arr[i].className) {
	  if (arr[i].className.split(" ").contains(className)) {
	    ret.push(arr[i]);
	  }
	}
  }
  return ret;
};

Array.prototype.contains = function (element) {
  for (var i = 0; i < this.length; i++) {
    if (this[i] == element) {
      return true;
    }
  }
  return false;
};

/**
 * Checks if on the home page.
 */
function isHomePage() {
  var loc = window.location.toString();
  return loc.indexOf("acatalog") == -1;
}

/**
 * Checks for IE
 */
function isIE() {
  return /msie/i.test(navigator.userAgent) && !/opera/i.test(navigator.userAgent);
}


/***************************************************************/
/***************** Tab Switching Functionality *****************/
/***************************************************************/
function toggleTab(id) {
  if (!id) id = 1;
  var tabtitle = $tb("tab-title-bar");
  if (tabtitle) {
    var links = tabtitle.getElementsByTagName("a");
    for (var i = 0; i < links.length; i++) {
      if (links[i].name && links[i].name != ('tab' + id)) {
        var content = $tb("tabcontent" + (i+1));
        if (content) {
          content.style.display = "none";
	      links[i].className = "";
        }
      }
      else {
        links[i].className = "selected";
      }
    }
    var tbcont = $tb("tabcontent" + id);
    if (tbcont) tbcont.style.display = "block";
  }
}

function initTabs() { toggleTab(1); }
if (window.attachEvent) { window.attachEvent("onload", initTabs); } 
else { window.addEventListener("load", initTabs, false); }

function SwitchTab(index) {
  var titles = $tb('tab-titles');
  if (titles) {
    var titleLinks = titles.getElementsByTagName("A");
    for (var i = 0; i < titleLinks.length; i++) {
	  //set the title class
	  titleLinks[i].className = (i == index ? "sel" : "");
	  titleLinks[i].blur();
	  var tabContent = $tb('Section' + i);
	  if (tabContent) {
	    tabContent.className = (i == index ? "section-tab-content block" : "section-tab-content");
	  }
	}
  }
}


/***************************************************************/
/*************** Collapsible Cart Functionality ****************/
/***************************************************************/
function collapseCart(emptyLine) {
  var cart = $tb('collapsible-cart');
  if (!cart) return;
  
  if (cart.style.display && cart.style.display == "block") {
    cart.style.display = "none";
  }
  else {
    cart.innerHTML = getMiniCart(emptyLine);
	cart.innerHTML += '<div>' + $tb('cart-links').innerHTML + '</div>';
	cart.style.display = "block";
  }
}


/***************************************************************/
/******** Fully selectable section link functionality **********/
/***************************************************************/
function initClickableSections() {
  var sections = $$tb('DIV', 'tec-section');
  for (var i = 0; i < sections.length; i++) {
    stripWhitespace(sections[i]);
	
	sections[i].onmouseover = function() {
	  this.className = "tec-section ts-hov";
	};
	sections[i].onmouseout = function() {
	  this.className = "tec-section";
	};
	
	/*var link = searchForLink(sections[i]);
	if (link != null) {
	  sections[i].setAttribute("rel", link);
	  sections[i].onclick = function() {
	    this.className = "tec-section ts-hov";
	    window.location = this.getAttribute("rel");
	  };
	} */
  }
}

/**
 * Removes excess whitespace from a node
 */
var notWhitespace = /\S/;
function stripWhitespace(node) {
  for (var i = 0; i < node.childNodes.length; i++) {
    var childNode = node.childNodes[i];
    if ((childNode.nodeType == 3) && (!notWhitespace.test(childNode.nodeValue))) {
      node.removeChild(node.childNodes[i]);
      i--;
    }
  }
}

/**
 * Searches a node for a link element and returns the href value if found.
 */
function searchForLink(node) {
  var links = node.getElementsByTagName('A');
  if (links.length > 0) {
    return links[0].href;
  }
  return null;
}

if (window.attachEvent) { 
  window.attachEvent("onload", initClickableSections); 
} 
else {  
  window.addEventListener("load", initClickableSections, false); 
}


/***************************************************************/
/**************** Image swapping functionality *****************/
/***************************************************************/
function swapImg(newImg) {
  var mimg = $tb('main-img');
  if (mimg) {
    mimg.src = newImg;
  }
}


/***************************************************************/
/************************ Drop Down Menu ***********************/
/***************************************************************/
var timeout	= 500;
var closeTimer = 0;
var menuParent = 0;
var menuItem = 0;

function tcOpen(id) {	
  tcCancelCloseTime();
  tcClose();
  menuParent = $tb('main-link' + id);
  menuItem = $tb('tc' + id);
  menuItem.style.display = 'block';
}

function tcClose() {
  if (menuItem) menuItem.style.display = 'none';
  if (menuParent) {
    menuParent.className = '';
  }
}

function tcCloseTime() {
  closeTimer = window.setTimeout(tcClose, timeout);
}

function tcCancelCloseTime() {
  if (closeTimer) {
    window.clearTimeout(closeTimer);
	closeTimer = null;
  }
  if (menuParent) {
    menuParent.className = 'sel';
  }
}

document.onclick = tcClose; 



/***************************************************************/
/**************************** Mini Cart ************************/
/***************************************************************/
function getMiniCart(){

var tableOpen="<table width='100%'>";
var itemLine="<tr><td valign='top'>VAR:QUANTITYx </td><td><a href='VAR:LINK'>VAR:TITLE...</a></td><td align='right' valign='top'>VAR:PRICE</td></tr>"
var shippingLine="<tr><td colspan='2'>Shipping</td><td align='right'>VAR:SHIPPING</td></tr>"
var vatLine="<tr><td colspan='2'>VAT</td><td align='right'>VAR:VAT</td></tr>"
var discountLine="<tr><td colspan='2'>Discounts</td><td align='right'>VAR:DISCOUNT</td></tr>"
var surchargeLine="<tr><td colspan='2'>Surcharges</td><td align='right'>VAR:SURCHARGE</td></tr>"
var totalLine="</table><table width='100%'><tr><td><b>Total</b></td><td align='right'><b>VAR:TOTAL</b></td></tr>"
var tableClose="</table>"
var emptyLine="No items in cart.";

var cookie=getCartItem(4);

if (!cookie){
	return emptyLine;
	}
var re=new Array();
var match=new Array();
var total=0;
var str;
re[1]=/cur=([^&]*)&!/g;
re[2]=/&!(.*)/g;
re[3]=/ss=(.*)cur=/i;
re[4]=/tx=(.*)sh=/i;
re[5]=/sh=(.*)ss=/i;
for (i=1;i<re.length;i++){
	match[i]=re[i].exec(cookie);
	match[i]=match[i][1];
	}
lines=match[2].split("&!");
store=new Array();
re[0]=/^(\d*)x/;
re[1]=/x([^>]*)>/;
re[2]=/>([^>]*)>/;
re[3]=/>([^>]*)$/;
str=tableOpen;
for (i=0;i<lines.length;i++){
	for (j=0;j<re.length-2;j++){
		detail=lines[i].match(re[j]);
		store[j]=detail[1];
		}
	str+=itemLine.replace("VAR:QUANTITY",store[0]).replace("VAR:LINK",match[3]+"?PRODREF="+store[1]+"&NOLOGIN=1").replace("VAR:TITLE",store[2]).replace("VAR:PRICE",match[1]+((store[3]*1).toFixed(2)));
	total+=(store[3]*1);
	}
if (match[5] > 0){
	str+=shippingLine.replace("VAR:SHIPPING",match[1]+(match[5]/100).toFixed(2));
	total=total+=(match[5]/100);
	}
if (match[4] > 0){
	str+=vatLine.replace("VAR:VAT",match[1]+(match[4]/100).toFixed(2));
	total=total+=(match[4]/100);
	}
gTotal=getCartItem(1);
var r=/&#(\d*);/gi;
var m=new Array();
var f=new Array();
while((m = r.exec(gTotal))!=null){
	f[f.length]=m[1];
	}
for (i=0;i<f.length;i++){
	gTotal=gTotal.replace("&#"+f[i]+";","");
	}
total=total.toFixed(2);
gTotal=(gTotal/100).toFixed(2);
if (total>gTotal){
	str=str+=discountLine.replace("VAR:DISCOUNT","-"+match[1]+(total-gTotal).toFixed(2));
	}
else if (total<gTotal){
	str=str+=surchargeLine.replace("VAR:SURCHARGE",match[1]+(gTotal-total).toFixed(2));
	}
str+=totalLine.replace("VAR:TOTAL",match[1]+(gTotal));
str+=tableClose;
return str;
}


/***************************************************************/
/**************************** Height Fix ***********************/
/***************************************************************/
function heightFix() {
  var toFix = $$tb('DIV', 'fh');
  var theHighest = 0;
  for (var i = 0; i < toFix.length; i++) {
    if (toFix[i].offsetHeight > theHighest) theHighest = toFix[i].offsetHeight;
  }
  for (var i = 0; i < toFix.length; i++) {
    toFix[i].style.height = theHighest + "px";
  }
}

if (window.attachEvent) { 
  window.attachEvent("onload", heightFix); 
} 
else {  
  window.addEventListener("load", heightFix, false); 
}

function searchResultsHeightFix() {
  var toFix = $$tb('DIV', 'teclan-search-result');
  var theHighest = 0;
  for (var i = 0; i < toFix.length; i++) {
    if (toFix[i].offsetHeight > theHighest) theHighest = toFix[i].offsetHeight;
  }
  for (var i = 0; i < toFix.length; i++) {
    toFix[i].style.height = theHighest + "px";
  }
}

// drop down menu - single column 

var timeout	= 500;
var closetimer	= 0;
var ddmenuitem	= 0;

// open hidden layer
function mopen(id) {	
  // cancel close timer
  mcancelclosetime();

  // close old layer
  mclose();

  // get new layer and show it
  ddmenuitem = document.getElementById('m' + id);
  if (ddmenuitem) {

    ddmenuitem.style.display = 'block';
  }
}

// close showed layer
function mclose() {
  if (ddmenuitem) ddmenuitem.style.display = 'none';
}

// go close timer
function mclosetime() {
  closetimer = window.setTimeout(mclose, timeout);
}

// cancel close timer
function mcancelclosetime() {
  if (closetimer) {
    window.clearTimeout(closetimer);
	closetimer = null;
  }
}

//switch innerHTML content between 2 DIVs
function textSwitcher(div1, div2) {
	var div1Content = $tb(div1).innerHTML;
	var div2Content = $tb(div2).innerHTML;
	//switch content
	$tb(div1).innerHTML = div2Content;
	$tb(div2).innerHTML = div1Content;
}