var bsState = '';
var wlState = '';
var bwState = 'open';
var bnState = '';
var wlsState = '';
var cpiState = '';
var abState = '';
var paState = '';
var isbnState = '';
var rcState = '';
var multipleUsedState = '';

var singleState = '';

var openLayers =new Array()

function MM_preloadImages() { //v3.0
  var d=document; 
  if(d.images){ 
  	if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function MM_showHideLayers() { //v6.0
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];
    if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v=='hide')?'hidden':v; }
    obj.visibility=v; }
}

function displayIsbnMessage (){
	value = document.searchboxBook.inputData.value
	if(value==null || value== ""){
		document.searchboxBook.inputData.value = 'Enter One Or More ISBNs'
	}
}

function deleteIsbn (comp){
	if(comp.value=='Enter One Or More ISBNs'){
		comp.value=''
	}
}

function ShowContent(d, d1, d2) {
if(d.length < 1) { return; }
show = document.getElementById(d)
noShow1 = document.getElementById(d1)
noShow2 = document.getElementById(d2)

value = document.searchboxBook.inputData.value
if(value==null || value== ""){
	value = document.searchbox1.inputData.value
}
if(value==null || value== ""){
	value = document.searchbox2.inputData.value
}
document.searchboxBook.inputData.value=document.searchbox1.inputData.value= document.searchbox2.inputData.valuevalue=value 

show.style.display = "";
noShow1.style.display = "none";
noShow2.style.display = "none";
}

function membership() {
	if(document.getElementById('membershipPlus').src.indexOf('minus')!=-1){
		MM_swapImage('membershipPlus','','img/plus.gif',1);
		document.getElementById('memberships').style.display = "none";
		return;
	}
	MM_swapImage('membershipPlus','','img/minus.gif',1);
	document.getElementById('memberships').style.display = "";
}

function sbFocus (){
	var focusControl = document.forms["searchboxBook"].elements["inputData"];
	if (focusControl.type != "hidden") {
	focusControl.focus();
	}
}

function sdFocus (){
	var focusControl = document.forms["searchbox1"].elements["inputData"];
	if (focusControl.type != "hidden") {
	focusControl.focus();
	}
}

function smFocus (){
	var focusControl = document.forms["searchbox2"].elements["inputData"];
	if (focusControl.type != "hidden") {
	focusControl.focus();
	}
}

function sgFocus (){
	var focusControl = document.forms["searchbox3"].elements["inputData"];
	if (focusControl.type != "hidden") {
	focusControl.focus();
	}
}

function Submit_dvd (){
	value =  document.searchbox1.inputData.value;
	if(document.searchbox1.searchType[1].checked){
		location.href="advancedSearch.do?type=DVD&director="+urlEn(value);
	}
	else if(document.searchbox1.searchType[2].checked){
		location.href="advancedSearch.do?type=DVD&actor="+urlEn(value);
	}
	else{
		location.href="compare.do?searchType=dvd&inputData="+urlEn(value);
	}
}

function Submit_sort (data, search, categoryId, sel, catId){
	var sort;
	for (i = 0; i < sel.length; i++){
	    if (sel[i].selected == true){
	        sort = sel[i].value;
	        break;
	    }
	}
	if (catId==null){
		location.href="compare.do?searchType="+search+"&inputData="+data+"&sb="+sort;
	}else{
		location.href="getCategory.do?categoryName="+data+"&categoryId="+categoryId+"&sb="+sort;
	}		
}

function Submit_music (){
	value =  document.searchbox2.inputData.value;
	if(document.searchbox2.searchType[1].checked){
		location.href="advancedSearch.do?type=Music&artist="+urlEn(value);
	}
	else if(document.searchbox2.searchType[2].checked){
		location.href="advancedSearch.do?type=Music&label="+urlEn(value);
	}
	else{
		location.href="compare.do?searchType=music&inputData="+urlEn(value);
	}
}

function Submit_getCateogry (){
	list = document.bestsellerform.listcategory;
	location.href="getBooksForCategory.do?categoryId="+list.options[list.selectedIndex].value;
}
var wishListHoldContent = ''
function getWishList(id){
	var url = 'amazonWishListCompare.do?i=true&by=id&id=' + id;
	var divIdName ='myWishlistData';
	//check if this is an open layer
	for( i=0;i<openLayers.length;i++){
		//if the layer is already there hide it
		if (openLayers[i]==divIdName){
			openLayers.splice(i,1);
			twist(divIdName,'open','mwl')
			return;
		}
		//if the layer is not shown - show it
		if(wishListHoldContent.equals('true')){
			openLayers.push(divIdName);
			twist(divIdName,'close','mwl')
			return;
		}
	}
	var ni = document.getElementById('mywishlist');
	var newdiv = document.getElementById('myWishlistData');
	newdiv.innerHTML = 	 '<br/><br/><img src="img/loading.gif"/><br/>Searching for your Wishlist. Please wait...<br/><br/>';
	openLayers.push(divIdName);
	twist(divIdName,'close','mwl');	
    if (window.XMLHttpRequest) {
    
        req = new XMLHttpRequest();
    } else if (window.ActiveXObject) {
        req = new ActiveXObject("Microsoft.XMLHTTP");
    }
    req.onreadystatechange = processRequestWishList;
    req.open("GET", url, true);
    req.send(null);
}
function processRequestWishList() {
    if (req.readyState == 4) {
        if (req.status == 200) {
          parseWishListDetails();
        } else {
  alert ( "Not able to retrieve wishlist" );
        }
    }
}
function parseWishListDetails() {
	text = req.responseText;
	var ni = document.getElementById('myWishlistData');
	ni.setAttribute('class','SBlist');
	ni.innerHTML = 	 text;
}
function urlEncodeN(str){
    str=str.replace('&','%26');
    str=str.replace('&','%26');
    str=str.replace('&','%26');
    return str;
}

function urlEn(str){
    str=str.replace('&','%26');
    return str;
}

function urlEncode(str){
    str=escape(str);
    str=str.replace(new RegExp('\\+','g'),'%2B');
    return str.replace(new RegExp('%20','g'),'+');
}