jQuery(document).ready(function(){

function slidepage23(direction){
var peeker = jQuery("div[@id^=yespage23]");

var classLength = jQuery(peeker).attr("class").length;

if(direction == "left"){
if(parseInt(peeker.attr("class").substring(10,classLength)) == (0)){
jQuery(peeker).attr("id","nopage23");
jQuery(".cellpage2315").attr("id","yespage23");
jQuery(".tubepage23").animate({left: "+=720"},2000, function(){
jQuery(this).css("display","none");})
.animate({left: "-=12240"},"fast", function(){jQuery(this).css("display","block");}).animate({left: "+=720"},2000);}

else{
var classLength = jQuery(peeker).attr("class").length;

var nextLeft = ".cell" + "page23" + (parseInt(jQuery(peeker).attr("class").substring(10,classLength)) - 1);
jQuery(peeker).attr("id","nopage23");
jQuery(nextLeft).attr("id","yespage23");
jQuery(".tubepage23").animate({left: "+=720"},2000);}}

if(direction == "right"){
var peeker = jQuery("div[@id^=yespage23]");
var classLength = jQuery(peeker).attr("class").length;

if(parseInt(peeker.attr("class").substring(10,classLength)) == 15){
jQuery(peeker).attr("id","nopage23");
jQuery(".cellpage230").attr("id","yespage23");
jQuery(".tubepage23").animate({left: "-=720"},2000, function(){jQuery(this).css("display","none");})
.animate({left: "+=12240"},"fast", function(){jQuery(this).css("display","block");}).animate({left: "-=720"},2000);}

else{
var classLength = jQuery(peeker).attr("class").length;

var nextRight = ".cell" + "page23" + (parseInt(jQuery(peeker).attr("class").substring(10,classLength)) + 1);
jQuery(peeker).attr("id","nopage23");
jQuery(nextRight).attr("id","yespage23");
jQuery(".tubepage23").animate({left: "-=720"},2000);}
}}

jQuery(".leftpage23").click(function(){
slidepage23("left");});
jQuery(".rightpage23").click(function(){
slidepage23("right");});
});