// JavaScript Document

//browser detection
var userBrowser,userPlat;
if (navigator.userAgent.indexOf("MSIE") >= 0) userBrowser = "ie";
if (navigator.userAgent.indexOf("Firefox") >= 0 ) userBrowser = "ff";
if (navigator.userAgent.indexOf("Safari") >= 0) userBrowser = "sf";
userPlat = (navigator.userAgent.indexOf("Mac") >= 0) ? "mac" : "pc";

function validQnty(qntTxtField)
{
 	if(/[0-9]/.test(qntTxtField.value)) qntTxtField.value=qntTxtField.value.replace(/[a-z]/gi, "");
 	var val = qntTxtField.value;
 
 	if (val != null) {
	 	val = qntTxtField.value.replace(/^\s+|\s+$/g,"");
	 	if (isNaN(val)){
	 		val = '1';
	 	}else{
	 		if (val < 1){
	 			val = '1';
	 		}
	 	}
	} 
	if ( val == null || val == ''){
 		val = '1';
	}
 	qntTxtField.value = val;
}

//to find x,y of elements (object needs to be passed as variable)
function findPos(obj) {
	var curleft = curtop = 0;
	if (obj.offsetParent) {
		do{
			curleft += obj.offsetLeft;
			curtop += obj.offsetTop;
		} 
		while (obj = obj.offsetParent);
	}
	return [curleft,curtop];
}

function jsPaus(ms){
	var date = new Date();
	var curDate = null;
	do{ 
		curDate = new Date(); 
	} 
	while(curDate - date < ms);
}

//show the persistent cart
function showPersistCart(){
	var gotoPage = "/include/ajax/top_nav_persist.jsp";
	divTagId="topNavDiv";
	var callBack = "function callBackFunc(t) {if (t != null) {showBag(); } }";
	sendAjaxRequest(false, gotoPage, document.forms['add_to_cart','dont_add_to_cart'], divTagId, false, null, true, callBack);
}

function showError(t){
	var size = t.length;
	for(var i=0;i<size;i++){
		if (t[i]!=null && t[i]=='showError'){
			return true;
		}
	}
	return false;
}
function modifySpan(name){
	var span= document.getElementById(name);
	span.style.padding=0;
}
//add item to persistent cart
function addToCart() 
{
	document.getElementById("shoppingBagBttn").src = imgShoppingBagOpenPath;
	//set prevTemplates
	document.forms["add_to_cart"]["bmPrevTemplate"].value=document.forms["add_to_cart"]["ErrorRedirect"].value;
	
    var gotoPage = "/include/ajax/top_nav_add_to_cart.jsp";
    divTagIds=new Array(4);
    divTagIds[0]="searchbox";
    divTagIds[1]="topNavDiv";
    divTagIds[2]="product_details_form";
    divTagIds[3]="inventory_error_0";
    divTagIds[4]="showError";
	var callBack = "function callBackFunc(t) {if (t[1] != null) { showBag(); parent.scrollTo(0,0); setTimeout('closeBag()', 5000);getProductDetail();}else if (showError(t)){modifySpan('errorSpan');/*do nothing so error msg will appear*/;}else{location.reload(true);} }";
	sendAjaxRequest(false, gotoPage, document.forms['add_to_cart'], divTagIds, true, "add_to_cart", true, callBack);
}

//remove an item from the persistent cart
function removeFromCart(url, noItems, prod, sku, price, qty, pcFlag)
{
 	var gotoPage = url;
 	var items = noItems;
 	divTagIds=new Array(2);
    divTagIds[0]="searchbox";
    divTagIds[1]="topNavDiv";
	if (items > 1) 
	{
		var callBack = "function callBackFunc(t) {if (t[1] != null) {showBag(); } }";
	} 
	else 
	{
		var callBack = "function callBackFunc(t) {if (t[1] != null) {document.getElementById('persistShoppingBag').style.display = 'block'; isBagOpen(); } }";
	}
	//omniture
	var s=s_gi(s_account);
	s.linkTrackVars='channel,prop1,prop11,products,events';
	s.linkTrackEvents='scRemove';
	s.channel='Shopping Bag:Remove';
	s.events='scRemove';
	s.prop1=s.channel;
	s.prop11=s.channel;
	//s.prop12=s.channel;
	s.products = ";"+prod;
	s.tl(this,'o','Remove from Shopping Bag');		
	
	//proclivity
	if (pcFlag == 'true') {		
		wec.cart_remove('sku='+sku, 'price='+price, 'qty='+qty);
		//alert(sku+':'+price+':'+qty);
	}

 	sendAjaxRequest(false, gotoPage, document.forms['persistent_shopping_cart'], divTagIds, true, "remove_from_cart", true, callBack);
}
 
//check is persistent cart is open/close & do appropriate actions
function isBagOpen()
{
 	var shoppingBag = document.getElementById("persistShoppingBag");
 	if(shoppingBag && shoppingBag.style.display == 'block')
 	{
 		shoppingBag.style.display = 'none';
		document.getElementById("shoppingBagBttn").src = imgShoppingBagClosePath;
		var iframe = document.getElementById("if_persistShoppingBag"); 
		if(iframe != null)
		{
        	iframe.style.display = 'none';
            iframe.style.width = 0;
          	iframe.style.height = 0;
            iframe.style.left = 0;
            iframe.style.top = 0;
        } 
 	}
 	else
 	{
 		showPersistCart();
 		document.getElementById("shoppingBagBttn").src = imgShoppingBagOpenPath;
 	}
}

//close the bag if it is open
function closeBag()
{
	var shoppingBag = document.getElementById("persistShoppingBag");
 	if(shoppingBag && shoppingBag.style.display == 'block')
 	{
		shoppingBag.style.display = 'none';
		document.getElementById("shoppingBagBttn").src = imgShoppingBagClosePath;
		var iframe = document.getElementById("if_persistShoppingBag"); 
		if(iframe != null)
		{
			iframe.style.display = 'none';
            iframe.style.width = 0;
            iframe.style.height = 0;
            iframe.style.left = 0;
            iframe.style.top = 0;
        } 
 	}
}

//open & adjust persistent cart position
function showBag()
{	
	var shoppingBag = document.getElementById("persistShoppingBag");
	if(shoppingBag && shoppingBag.style.display == 'none')
	{
		document.getElementById("shoppingBagBttn").src = imgShoppingBagOpenPath;
		var shpnBagX = findPos(document.getElementById("shoppingBagBttn"));
		ajustX = (userBrowser == "ie" ? 1 : 1);
		
		if (userPlat == "mac" && userBrowser == "sf") {
			ajustY = 14;
		} else {
			ajustY = (userBrowser == "ie" ? 16 : 16);
		}
		
		shoppingBag.style.display = 'block';
		shoppingBag.style.left = shpnBagX[0] - ajustX;
		shoppingBag.style.top = shpnBagX[1] + ajustY;
		document.getElementById("shoppingBagBttn").src = imgShoppingBagOpenPath;
		var iframe = document.getElementById("if_persistShoppingBag"); 
		if(iframe != null)
		{
			var layer = document.getElementById("persistShoppingBag");
			iframe.style.zIndex = layer.style.zIndex - 1;
            iframe.style.display = 'block';
            iframe.style.width = layer.offsetWidth;
            iframe.style.height = layer.offsetHeight;
            iframe.style.left = shoppingBag.style.left;
            iframe.style.top = shoppingBag.style.top;
        } 
	}
}
function openPopupGeneral(p_url,p_width,p_height,p_scroll,p_resize){
	var p_arguments="";
	if(p_width!=null)p_arguments+="width="+p_width+",";
	if(p_height!=null)p_arguments+="height="+p_height+",";
	if(p_scroll!=null)p_arguments+="scrollbars="+p_scroll+",";
	if(p_resize!=null)p_arguments+="resizable="+p_resize;
	window.open(p_url,'JCpopUp',p_arguments);
}

function togglePromoDetails(obj, toggle){
	var newY = findPos(obj);
	var descDiv = document.getElementById('globalpromo_detailsDiv');
	var detailsDiv = document.getElementById('globalpromo_details');
	var iframe = document.getElementById("if_globalpromo");
	var promoContainer = document.getElementById("promo_container");
	
	if (toggle == 'open') { 
		descDiv.style.display='block';
		descDiv.style.position = 'absolute';
		var divHeight = descDiv.offsetHeight;
		ajustY = (userBrowser == "ie" ? -5 : 10);
		descDiv.style.left = detailsDiv.offsetLeft + 5;
		descDiv.style.top = detailsDiv.offsetTop + 25;
		descDiv.style.zIndex = 800;
		
		if (userBrowser == "ie") {
			promoContainer.style.zIndex = 15;
		}		
		
		if(iframe != null)
		{
            iframe.style.display = 'block';
			iframe.style.position = 'absolute';
            iframe.style.width = descDiv.offsetWidth ;
            iframe.style.height = descDiv.offsetHeight;
            iframe.style.left = descDiv.offsetLeft;
            iframe.style.top = descDiv.offsetTop + 2;
			iframe.style.zIndex = (userBrowser == "ie" ? 0 : descDiv.style.zIndex - 1);
			
        }
	} 
		
	if (toggle == 'close') { 
		descDiv.style.display='none'; 
		iframe.style.display = 'none';
	}
} 

function mkRandomString(stringLength) { 

	var chars = new Array ('0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z','A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z');
	var charCount = chars.length;
 	
	var randomString = "";

   	i = 0;
   	do {
      		randomString += chars[Math.floor(Math.random()*charCount)];
      		i++;
   	}
   	while (i < stringLength); 
   
   	return randomString;
}