jQuery(document).ready(function(){
jQuery(".portalpage4").animate({opacity:"1"},"fast").fadeIn();

function slidepage4(direction){
var peeker = jQuery("div[@id^=yespage4]");

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

if(direction == "left"){
if(parseInt(peeker.attr("class").substring(9,classLength)) == (0)){
jQuery(peeker).attr("id","nopage4");
jQuery(".cellpage42").attr("id","yespage4");
jQuery(".tubepage4").animate({top: "+=920"},"slow");
jQuery(".tubepage4").animate({left: "-=1900"},"fast");
jQuery(".tubepage4").animate({top: "-=920"},"slow");}

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

var nextLeft = ".cell" + "page4" + (parseInt(jQuery(peeker).attr("class").substring(9,classLength)) - 1);
jQuery(peeker).attr("id","nopage4");
jQuery(nextLeft).attr("id","yespage4");
jQuery(".tubepage4").animate({left: "+=950"},"slow");}}

if(direction == "right"){
var peeker = jQuery("div[@id^=yespage4]");
var classLength = jQuery(peeker).attr("class").length;

if(parseInt(peeker.attr("class").substring(9,classLength)) == 2){
jQuery(peeker).attr("id","nopage4");
jQuery(".cellpage40").attr("id","yespage4");
jQuery(".tubepage4").animate({top: "-=920"},"slow");
jQuery(".tubepage4").animate({left: "+=1900"},"fast");
jQuery(".tubepage4").animate({top: "+=920"},"slow");}

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

var nextRight = ".cell" + "page4" + (parseInt(jQuery(peeker).attr("class").substring(9,classLength)) + 1);
jQuery(peeker).attr("id","nopage4");
jQuery(nextRight).attr("id","yespage4");
jQuery(".tubepage4").animate({left: "-=950"},"slow");}
}}

jQuery(".leftpage4").click(function(){
slidepage4("left");});
jQuery(".rightpage4").click(function(){
slidepage4("right");});
});