// CART DETAILS
  // CART IS BASED ON SKU=QTY JOINED BY | (PIPE)
  
  // START CART REDIRECT
  function CartRedirect() {
    window.location = "http://www.mrswag.com/cart.php";
  }
  // END CART REDIRECT

  function GetCookie(find_key) {
    var cookies = document.cookie.split(";");
    var c_val = "";
    for(var x in cookies)
    {
      var cookie = cookies[x].replace(/(?:^\s*|\s*$)/g, "");
      key = cookie.split("=")[0];
      val = cookie.split("=")[1];
      if(key == find_key)
	  {
        c_val = unescape(val);
        break;
      } 
    }
    return c_val;
  }

  // "name" = "value"; expires = "date"; path = "directory"; domain = "domainName"; secure 
  // function SetCookie(name, value, expires, path, domain) {
  function SetCookie(name, value, expires) {
    document.cookie = name+'='+value+'; expires='+expires+'; path=/; domain=.mrswag.com;';
  }
  
  function GetCookieExpires(days) {
    if(days == null) { days = 90; }
	var da = new Date();
	var currentMinutes = da.getMinutes();
	secondsToExpire = (currentMinutes + (86400 * days)) * 1000; // [days] days in milliseconds
	da.setMilliseconds(secondsToExpire);
	var expires = da.toGMTString();
	return expires;
  }
  
  function ClearCart(sku) {
    GetCookieExpires();
	var da = new Date();
	var currentMinutes = da.getMinutes();
	secondsToExpire = (currentMinutes + (86400 * 90)) * 1000; // 90 days in milliseconds
	da.setMilliseconds(secondsToExpire);
	var expires = da.toGMTString();
	SetCookie('cart', 'empty', expires);
	SetCookie('cc', '0', -1);
	SetCookie('ccf', '0', -1);
	SetCookie('ct', '0', -1);
	SetCookie('d', '0', -1);
	CartRedirect();
  }
  
  function UpdateCart(sku) {
    var form = document.forms['checkoutform'];
    var newCart = [];
	var newCartCount = 0;
    var cart = GetCookie('cart');
    var cartItems = cart.split("\|");
	var isCurrentFound = 0;
    for(var x in cartItems) {
      var cartItem = cartItems[x].replace(/(?:^\s*|\s*$)/g, "");
      c_sku = cartItem.split("=")[0];
      c_qty = cartItem.split("=")[1];
      if(sku = c_sku) {
        c_qty = form.elements['qty_'+sku].value;
      }
	  newCart[newCartCount++] = c_sku+'='+c_qty;
	}
	if(newCart.length > 0) {
	  newCartStr = escape(newCart.join("|"));
	}
	else {
	  newCartStr = 'empty';
	}
	SetCookie('cart', newCartStr, GetCookieExpires(90));
	CartRedirect();
  }
  
  function RemoveFromCart(sku) {
    var form = document.forms['productform'];
    var newCart = [];
	var newCartCount = 0;
    var cart = GetCookie('cart');
    var cartItems = cart.split("\|");
	var isCurrentFound = 0;
    for(var x in cartItems) {
      var cartItem = cartItems[x].replace(/(?:^\s*|\s*$)/g, "");
      c_sku = cartItem.split("=")[0];
      c_qty = cartItem.split("=")[1];
      if(sku != c_sku) {
        newCart[newCartCount++] = c_sku+'='+c_qty;
      }
	}
	if(newCart.length > 0) {
	  newCartStr = escape(newCart.join("|"));
	}
	else {
	  newCartStr = 'empty';
	}
	SetCookie('cart', newCartStr, GetCookieExpires(90));
	CartRedirect();
  }

  function AddToCart(sku) {
    var form = document.forms['productform'];
	var qty = form.QuantityId.options[form.QuantityId.selectedIndex].value;
    var newCart = [];
	var newCartCount = 0;
    cart = GetCookie('cart');
	if(cart == '' || cart == 'empty') {
	  newCart[newCartCount++] = sku+'='+qty; 
	}
	else {
      var cartItems = cart.split("\|");
	  var isCurrentFound = 0;
      for(var x in cartItems) {
        var cartItem = cartItems[x].replace(/(?:^\s*|\s*$)/g, "");
        c_sku = cartItem.split("=")[0];
        c_qty = cartItem.split("=")[1];
        if(sku == c_sku) {
          newCart[newCartCount++] = sku+'='+qty;
		  isCurrentFound = 1; 
        }
		else {
		  newCart[newCartCount++] = c_sku+'='+c_qty;
		}
      }
	  if(!isCurrentFound) {
	    newCart[newCartCount++] = sku+'='+qty;
	  }
	}
	newCartStr = escape(newCart.join("|"));
	SetCookie('cart', newCartStr, GetCookieExpires(90));
	CartRedirect();
  }
  
  function updateProductSku(d, f) {
    var activeSku = d['sku'];
    var activePrice = d['price'];
	var activeStock = (d['inventory'] > 0) ? 'In Stock' : 'Out Of Stock';
	var cartBlockDisplay = (d['inventory'] > 0) ? 'block' : 'none';
	var cartBlockLyr = document.getElementById('addtocartblock');
	if(cartBlockLyr) { cartBlockLyr.style.display=cartBlockDisplay; }
	var styleSku = activeSku.replace(/\-\d+$/, '');
    var priceLyr = document.getElementById("product_price");
    if(priceLyr) { priceLyr.innerHTML = '$' + activePrice; }
    var stockLyr = document.getElementById("product_stock");
    if(stockLyr) { stockLyr.innerHTML = activeStock; }
    var cartLyr = document.getElementById("addtocart");
    if(cartLyr) { cartLyr.href = "javascript:AddToCart('" + activeSku + "')"; }
    var wishLyr = document.getElementById("addtowishlist");
    if(wishLyr) { wishLyr.href = "javascript:AddToWishlist('" + activeSku + "')"; }
    var zoomLyr = document.getElementById("showpic");
    if(zoomLyr) { zoomLyr.href = "javascript:showPic('" + styleSku + "')"; }
    var zoom2Lyr = document.getElementById("showpic2");
    if(zoom2Lyr) { zoom2Lyr.href = "javascript:showPic('" + styleSku + "')"; }
	if(f == 1) {
	  var styleSkuSwatchLyr = document.getElementById("product_style_sku");
	  if(styleSkuSwatchLyr) { styleSkuSwatchLyr.innerHTML = 'Style # ' + styleSku; }
	}
  }
  
  function swapSku(colorid, sizeid) {
    var data = product_info[colorid];
	for(var x in data) {
	  if(data[x]['sizeid'] == sizeid) {
	    updateProductSku(data[x], 0);
		break;
	  }
	}
  }
  
  function swapColorSize(colorid) {
    // color swatch
	var activeSku = '';
	var activePrice = '0.00';
	var form = document.forms['productform'];
	var count = 0;
	var tempSizes = [];
    for(var x in product_info) {
	  var activeSwatchLyr = document.getElementById("color_swatch_"+x);
	  if(x == colorid) {
	    activeSwatchLyr.className = 'selectedcolor';
	  }
	  else {
	    activeSwatchLyr.className = 'unselectedcolor';
	  }
	}
	// change color drop down menu
	var len = form.elements['ColorId'].options.length;
	for(var x=0; x<len; x++) {
	  if(form.elements['ColorId'].options[x].value == colorid) {
	    form.elements['ColorId'].selectedIndex = x;
		break;
	  }
	}
	// change image
	if(document.images) {
      var productImage = document.images['product_image'];
	  productImage.src = product_image[colorid].src;
	}
	// change size options drop down
	for(var x=0; x<product_info[colorid].length; x++) {
	  if(x == 0) {
	    updateProductSku(product_info[colorid][x], 1);
	  }
	  tempSizes[count++] = new Option(product_info[colorid][x]['size'], product_info[colorid][x]['sizeid']);
	}
	form.elements['SizeId'].options.length = 0;
    for(x=0; x<tempSizes.length; x++) {
      form.elements['SizeId'].options[x] = tempSizes[x];
    }
  }
  
  var productDetailTabs = [ 'Details', 'Shipping', 'Share', 'Media' ];
  var currentproductDetailTab = 0;
  
  function showProductDetail(i) {
    for(var x=0, y=productDetailTabs.length; x<y; x++) {
	  var lyr = document.getElementById('prodtd_'+x);
	  if(lyr) { lyr.className = (x==i) ? 'productdetailactive' : 'productdetaildisable'; lyr.onclick = (x==i) ? '' : "showProductDetail("+x+")"; }
	  var lyr = document.getElementById('proddisp_'+x);
	  if(lyr) { lyr.innerHTML = (x==i) ? productDetailTabs[x] : '<a href="javascript:showProductDetail('+x+')" title="'+productDetailTabs[x]+'">'+productDetailTabs[x]+'</a>'; }
	  var lyr = document.images['img_prodhead_'+x];
	  if(lyr) { lyr.src = (x==i) ? '/images/product_detail_03.gif' : '/images/product_detail_06.gif'; }
	  var lyr = document.getElementById('product_detail_'+x);
	  if(lyr) { lyr.style.display = (x==i) ? '' : 'none'; }
	}
  }
  
  function ContinueShopping() {
    window.location="http://www.mrswag.com/";
  }
  
  function GetCartCount() {
    var cart = GetCookie('cart');
	var count = 0;
	if(cart != 'empty' && cart != '') {
	  var cartItems = cart.split("\|");
	  for(var x in cartItems) {
	    var d = cartItems[x].split("=");
	    count += (d[1]*1); // to force value to be a number
	  }
	}
	document.write(count);
  }
  
  function ShowSizingInfo() {
    var sizing_window = window.open("http://www.mrswag.com/size_info_men.html", "sizing_window", "width=600,height=400,scrollbars=yes,left=100,top=100");
	sizing_window.focus();
  }
  
  function EmailFriend(a,b) {
    var top = Math.floor(screen.availHeight / 2) - 200;
	var left = Math.floor(screen.availWidth / 2) - 200;
    var emailfriendwindow = open("http://www.mrswag.com/email_friend.php?a="+encodeURIComponent(a)+"&b="+encodeURIComponent(b), 'emailfriendwindow', 'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=no,copyhistory=no,width=400,height=400,top='+top+',left='+left);
  }
  
  function showPic(a) {
    var top = Math.floor(screen.availHeight / 2) - 300;
	var left = Math.floor(screen.availWidth / 2) - 300;
    var largeviewwindow = open("/large_view.php?a="+encodeURIComponent(a), 'largeviewwindow', 'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=no,copyhistory=no,width=600,height=600,top='+top+',left='+left);
  }
  
  function DoCouponCode(form) {
    var cc = form.elements['couponcode'];
	if(cc) {
	  var c = cc.value;
	  if(c == '') {
	    alert("You must enter in a valid 8-Digit Coupon Code!");
	  }
	  else {
	    window.location = "http://www.mrswag.com/cart.php?c="+encodeURIComponent(c);
	  }
	}
	return false;
  }