jQuery(document).ready(function(){
jQuery(".portalpage18").animate({opacity:"1"},"fast").fadeIn();

function slidepage18(direction){
var peeker = jQuery("div[@id^=yespage18]");

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

if(direction == "left"){
if(parseInt(peeker.attr("class").substring(10,classLength)) == (0)){
jQuery(peeker).attr("id","nopage18");
jQuery(".cellpage189").attr("id","yespage18");
jQuery(".tubepage18").animate({left: "+=770"},"fast", function(){
jQuery(this).css("display","none");})
.animate({left: "-=8470"},"fast", function(){jQuery(this).css("display","block");}).animate({left: "+=770"},"fast");}

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

var nextLeft = ".cell" + "page18" + (parseInt(jQuery(peeker).attr("class").substring(10,classLength)) - 1);
jQuery(peeker).attr("id","nopage18");
jQuery(nextLeft).attr("id","yespage18");
jQuery(".tubepage18").animate({left: "+=770"},"fast");}}

if(direction == "right"){
var peeker = jQuery("div[@id^=yespage18]");
var classLength = jQuery(peeker).attr("class").length;

if(parseInt(peeker.attr("class").substring(10,classLength)) == 9){
jQuery(peeker).attr("id","nopage18");
jQuery(".cellpage180").attr("id","yespage18");
jQuery(".tubepage18").animate({left: "-=770"},"fast", function(){jQuery(this).css("display","none");})
.animate({left: "+=8470"},"fast", function(){jQuery(this).css("display","block");}).animate({left: "-=770"},"fast");}

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

var nextRight = ".cell" + "page18" + (parseInt(jQuery(peeker).attr("class").substring(10,classLength)) + 1);
jQuery(peeker).attr("id","nopage18");
jQuery(nextRight).attr("id","yespage18");
jQuery(".tubepage18").animate({left: "-=770"},"fast");}
}}

jQuery(".leftpage18").click(function(){
slidepage18("left");});
jQuery(".rightpage18").click(function(){
slidepage18("right");});
});