//function to add new gold card
	var isSubmit = true;
	function addGCToCart(isAddToCart)
	{
		if(isAddToCart == 'true' && isSubmit)
		{
			document.goldcardForm.submit();
		}
		else
		{
			var msgDiv = document.getElementById("gcMsg");
			if(msgDiv)
			{
				msgDiv.style.display = "block";
				isSubmit = false;
				document.getElementById("addtocartLayer").style.display = "none";
			}
		}

	}
	
	//Hides the layer and enables Add To Cart button
	function cancelGC()
	{
		var msgDiv = document.getElementById("gcMsg");
		if(msgDiv)
		{
			msgDiv.style.display = "none";
		}
	}
	
	//Adds gold card to cart as gift
	function purchaseGCAsGift(sku)
	{
		document.goldcardForm.prod_0.value = sku;
		isSubmit = true;
		addGCToCart('true');
	}
	
	//Adds gold card as renewal for GC member
	function renewGC(sku)
	{
		document.goldcardForm.prod_0.value = sku;
		isSubmit = true;
		addGCToCart('true');
	}
	
	//Adds gold card to cart for new user. Current user session is invalidated
	function purchaseAsNewUser()
	{
		var prodId = document.goldcardForm.prod_0.value;
		document.goldcardForm.action.value = "step=logout&np=addGoldCard_"+prodId;
		document.goldcardForm.submit();
	}
	
	//function changes the main image on selection of a regional image or sku
	function swapImage(skuProdId,largeImageURL,enhancedImageURL,colIndex,totalRegCount,akURL)
	{
		var largeImgObj = document.getElementById("prodShot");
		var enhImgFldObj = document.getElementById("enh");
		
		if(largeImgObj && (largeImageURL != "null" || largeImageURL != ""))
		{
			largeImgObj.src = largeImageURL;	
		}
		
		if(enhImgFldObj)
		{
			enhImgFldObj.value = enhancedImageURL;
		}
		
		//switch position of arrow to selected regional
		switchArrowPos(skuProdId,colIndex,totalRegCount,akURL);
	}
	
	//function to switch arrow to selected regional
	function switchArrowPos(skuProdId,colIndex,totalRegCount,akURL)
	{
		for(var i = 0; i < totalRegCount; i++)
		{
			var arrowImg = document.getElementById("Arrow_"+skuProdId+"_"+i);
			//if regional selected, display arrow
			if(i == colIndex)
			{
				arrowImg.src = akURL+"/images/arrowUp.gif";	
			}
			else
			{
				arrowImg.src = akURL+"/images/pixel.gif";
			}
		}
	}
	
	//function opens new pop-up window.
	function showPopUp(winURL, winName, winParams)
	{
		remote = window.open(winURL, winName, winParams);
	}
	
	//function displays popup for product enhanced image
	function showEnhanced()
	{
		var winWidth = "590";
		var winHeight = "565";
		var enhImgSrcFld = document.getElementById("enh");
		var enhImgSrcVal = "";
		var popupWin = null;
		
		if(enhImgSrcFld)
		{
			enhImgSrcVal = escape(enhImgSrcFld.value);
			if(enhImgSrcVal != "null" && enhImgSrcVal != "")
			{
				popupWin = window.open("/product/largeImage.jsp?LargeImageURL=" + enhImgSrcVal, "largeImage", "width="+winWidth+",height="+winHeight+",left=0,top=0,scrollbars");
			}
		}
	}
	
	//Global variable to hold value of selected sku
	var sel_SkuId = "";

	//function to display default tab when size is not selected
	function setDefaultTab(sizeObj,skuId)
	{
		if(sizeObj)
		{
			var selIndex = sizeObj.selectedIndex;
			var isSku = false;
			if(ImageCollArray && 0 < ImageCollArray.length)
			{
				for(var i = 0; i < ImageCollArray.length; i++)
				{
					// tab index 6 corresponds to label
					if(skuId == ImageCollArray[i].id)
					{
						if(selTabIndex == i)
						{
							if(document.getElementById("label_"+ImageCollArray[i].id))
							{
								//if label exists for sku, display
								isSku = true;
								break;
							}
						}
					}
				}
			}

			if(isSku)
			{
				//Label not present for sku, display the first tab
				displayLayer(0);
			}	
		}
	}
	
	//function displays regionals if any for selected sku
	function showRegionals(skuId)
	{
		//set the selected sku Id in global variable
		sel_SkuId = skuId;
		if(ImageCollArray && 0 < ImageCollArray.length)
		{
			for(var i = 0; i < ImageCollArray.length; i++)
			{
				//check if regionals tbl exists for sku
				var regnlTblObj = document.getElementById("regnlTbl_"+ImageCollArray[i].id);
				if(regnlTblObj)
				{
					//obtain ImageCollArray element for selected Sku
					if(ImageCollArray[i].id == skuId)
					{
						regnlTblObj.style.display = "block";		
					}
					else
					{
						regnlTblObj.style.display = "none";
					}
				}
			}
		}
		
	}
	
	//function to set Label based on the Sku selected
	function setLabelForSku(skuId)
	{
		var labelTabObj = document.getElementById("prodLabelTab");
		var selSkuLabelObj = document.getElementById("label_"+skuId);
	
		if(ImageCollArray && 0 < ImageCollArray.length)
		{
			for(var i = 0; i < ImageCollArray.length; i++)
			{
				if(document.getElementById("label_"+ImageCollArray[i].id))
				{
					document.getElementById("label_"+ImageCollArray[i].id).style.display = "none";
				}
			}
		}
		
		if(labelTabObj && selSkuLabelObj)
		{
			labelTabObj.style.display = "block";
			selSkuLabelObj.style.display = "block";
		}
		else
		{
			document.getElementById("prodLabelTab").style.display = "none";
			displayLayer(0);
		}
	}
	
	//Arrays which hold path to product tab images
	var tabImgArrOn = new Array("/images/GNC_PP_Tab_DescriptionOn.gif","/images/GNC_PP_Tab_ProductOn.gif","/images/GNC_PP_Tab_ClinicalOn.gif","/images/GNC_PP_Tab_QNAOn.gif","/images/GNC_PP_Tab_SpecialOn.gif","/images/GNC_PP_WEBMD_TAB_on.gif","/images/GNC_PP_Tab_LabelOn.gif","/images/GNC_PP_AvailableOn.gif");
	var tabImgArrOff = new Array("/images/GNC_PP_Tab_DescriptionOff.gif","/images/GNC_PP_Tab_ProductOff.gif","/images/GNC_PP_Tab_ClinicalOff.gif","/images/GNC_PP_Tab_QNAOff.gif","/images/GNC_PP_Tab_SpecialOff.gif","/images/GNC_PP_WEBMD_TAB_off.gif","/images/GNC_PP_Tab_LabelOff.gif","/images/GNC_PP_AvailableOff.gif");
	var tabsCount = 8;
	var selTabIndex = 0;
	
	//function to display layer based on the tab selected
	function displayLayer(layerIndex)
	{
		for(var i=0; i < tabsCount; i++)
		{
			var dispLayerObj = document.getElementById("layer"+i);
			
			//Display layer based on tab selected
			if(dispLayerObj)
			{
				if(i == layerIndex)
				{
					dispLayerObj.style.display = "block";
					selTabIndex = layerIndex;
					//break;
				}
				else
				{
					dispLayerObj.style.display = "none";
				}
			}
			
			//Change the tab image based on the tab selected
			var tabImgObj = document.getElementById("tabImg"+i);
			if(tabImgObj)
			{
				if(i == layerIndex)
				{
					tabImgObj.src = tabImgArrOn[i];
				}
				else
				{
					tabImgObj.src = tabImgArrOff[i];
				}
	
			}
		}
	} 


//	BROWSER CHECK	
	var containerBrowser = "Unknown";
	var containerBrowser = parseFloat( navigator.appVersion);
	
	if	(navigator.appName == "Microsoft Internet Explorer")	{
	containerBrowser = "IE";
	}
	
	else if	(navigator.appName == "Netscape")	{
	containerBrowser = "NN";
	}


    var agt=navigator.userAgent.toLowerCase();
    var is_mac    = (agt.indexOf("mac")!=-1);	

//	verisign POP-UP WINDOW
	function popUp(url) {
	sealWin=window.open(url,"win",'toolbar=0,location=0,directories=0,status=1,menubar=1,scrollbars=1,resizable=1,width=500,height=450');
	self.name = "mainWin"; }
	
function chgdsplay(me)  
{     
	var style = document.getElementById(me).style;     
	style.display = style.display == "none"? "block" : "none";  
}

function verifyFormFields (theForm)
{
	var qty = eval("document." + theForm + ".qty_0.value");
	var prod = eval("document." + theForm + ".prod_0.value");
    
    
    purchaseTypes = document.getElementsByName('purchaseType');
    
    for (var x=0; x< purchaseTypes.length; x++) {
        var purchaseType = purchaseTypes[x];
        if (purchaseType.checked && purchaseType.value == 'autoship') {
            var frequency = eval("document." + theForm + ".autoShipFrequencySelect.value");
            purchaseType.value = purchaseType.value + '|' + frequency;
        }
        
    }
    
	var haveBadQty = false;
	for (j=0; j < qty.length; j++)
	{
		if(isNaN(parseInt(qty.charAt(j))) )
		{
			haveBadQty = true;
			break;
		}
	}
    
    
	if ((prod == "" || prod == "undefined") && (qty == "" || haveBadQty || qty == "0" ))
		alert ("Please select a quantity and size.");
	else if (prod == "" || prod == "undefined")
		alert ("Please select a size.");
	else if (qty == "" || haveBadQty || qty == "0" )
		alert ("Please select a quantity.");
	else
		eval("document." + theForm + ".submit()");
}
// function to verify form fields
function verifyChildFormFields (theForm,count)

{
	var haveBadQty = false;
	var qtyCount = 0;
	var qty = "";
  
     for(var i=0;i < count ; i++)
     qtyCount=qtyCount + eval("document." + theForm + ".qty_" + i + ".value");
  
      if(count > 0)
  
      {
         for (var j=0;j < count;j++) 
	      { 
	         qty = eval("document." + theForm + ".qty_" + j + ".value");
	  	
	           for(var k=0;k < qty.length;k++)
	            {
		          if(isNaN(parseInt(qty.charAt(k))) )
		           {
			         haveBadQty = true;
		             break;
		           }
	            }
           }
       }
	

	 if(qtyCount==0 || haveBadQty)
	alert ("Please enter a product quantity to add to your cart.");

    else
    eval("document." + theForm + ".submit()");

}

//function to display layer based on the popup based on the tab selected
	     
 function displayPopupLayer(layerIndex)
  {
  
    var tabCount = 4;

	for(var i=0; i < tabCount; i++)
	  {
         var dispLayerObj = document.getElementById("layer"+i);
		 var tabImgObj = document.getElementById("image"+i);
 
            //Display layer based on tab selected
			   if(dispLayerObj)
			    {
				  if(i == layerIndex)
					dispLayerObj.style.display = "block";

				 else
					dispLayerObj.style.display = "none";
			    }
                 
				if(tabImgObj)
			    {
                   if(i == layerIndex)
				    imgOn('image'+i);

				   else
					imgOff('image'+i);
			    }
			
		  }		
	 } 
		
// function to turn off the tab image
 function imgOff(imgName)
  {
	  if (document.images)
	  {
		   document[imgName].src = eval(imgName + "off.src");
	  }
  }	

// function to turn on the tab image
function imgOn(imgName)
{
   if (document.images)
   
   {
	  document[imgName].src = eval(imgName + "on.src");

   }
}


function setDisplay(me, value)  
{     
	if (document.getElementById(me))
 	{
		var style = document.getElementById(me).style;     
		style.display = value;  
	}
}
function changePriceforSku (isMainPID, box, thisPid) 
{ 
	var pidsku = box.options[box.selectedIndex].value; 
	var oldIndex = eval("document.cartForm" + thisPid + ".LASTOPTIONSELECTED.value");
	eval("document.cartForm" + thisPid + ".LASTOPTIONSELECTED.value = '"+box.selectedIndex+"'");
	if (pidsku.indexOf('|') > -1)
	{
		var psar = pidsku.split('|');
		var pid = psar[0];
		var sku = psar[1];
	}
	else
	{
		var pid = thisPid;
		var sku = "all";
	}
	document.getElementById('PRICETAG'+pid).innerHTML = document.getElementById('PRICETAG'+pid+'|'+sku).innerHTML;     
	var noCartButton = document.getElementById('PRICETAG'+pid+'|'+sku).innerHTML.indexOf("NO CART BUTTON");
	var specialMessage = document.getElementById('PRICETAG'+pid+'|'+sku).innerHTML.indexOf("SPECIAL ORDER MESSAGE");
	setDisplay("REMINDCHK"+pid, "none");
	if (noCartButton > -1 || specialMessage)
	{
		//Hide Cart Button
		if (noCartButton > -1)
			setDisplay('add_to_cart'+pid, "none");
		else
			setDisplay('add_to_cart'+pid, "block");
		var theText = document.getElementById('PRICETAG'+pid).innerHTML;
		var reminder = theText.lastIndexOf ("REMINDCHK");
		theText = theText.substring(theText.lastIndexOf("<!--")+4, theText.lastIndexOf("-->"));
		var divName = "div_err_msg";
		if (reminder > 0)
		{
			divName = "REMINDCHK";
			setDisplay(divName+pid, "block");
		}
		else if (theText.length > 4)
		{
			document.getElementById(divName+pid).innerHTML = theText;
			setDisplay(divName+pid, "block");
		}
	}
	else
	{
		//Show Cart Button
		setDisplay('add_to_cart'+pid, "block");
		setDisplay('div_err_msg'+pid, "none");
	}
	
	//display regionals/ label functionality called only for main product
	if(isMainPID)
	{
		showRegionals(sku);
		setLabelForSku(sku);
		setDefaultTab(box,sku);
	}

}

function writefromtoLyr(name, name2)
{
 if (document.layers)
 {
  document.layers[name].document.close();
  document.layers[name].document.write(message);
  document.layers[name].document.close();
 }
 else
 {
  if (document.all)
  {
   eval("document.all." + name + ".innerHTML='" + message + "'");
  }
  else
  {
   document.getElementById(name).innerHTML = message;
  }
 }
 
 
}

function showCustomPopUp(thisUrl,thisName,theseParams)
{
  open(thisUrl, thisName, theseParams);
}

function swapItReg(T176_Path,ENHPath)
{
	window.document.prodShot.src = T176_Path;
	document.getElementById("enh").value=ENHPath;
}

//This method is called on the GNC product page when the 'individual purchase' or 
//'Auto Ship' radio button is selected.
function radioButtonSelected(event) {

    if (event.target) {
        element = event.target;
    } else if (event.srcElement) {
        element = event.srcElement;
    } 
    
    var selectElement = document.getElementById('autoShipFrequencySelect');
    var bmlElement = document.getElementById('bmlTable');
    var adText = document.getElementById('autoDeliveryText');
    
    if (element.value == 'autoship') {
        adText.innerHTML = 'Auto Delivery:';
        selectElement.style.visibility = 'visible';
        if (bmlElement!=null) bmlElement.style.visibility = 'hidden';
    } else if (element.value == 'individual') {
        adText.innerHTML = 'Auto Delivery';
        selectElement.style.visibility = 'hidden';
        if (bmlElement!=null) bmlElement.style.visibility = 'visible';
    }
    return true;
}