var numL=1
var numR=2
var b=1


function saveme() {   
		var expDate = new Date;
expDate.setMonth(expDate.getMonth()+12);
		document.cookie = "page="+ b + ";expires="+expDate.toGMTString()+";path=/;";
		alert ("Thanks for reading!!!");
		  }

function savego() {
	if (document.cookie && document.cookie !=""){process_cookies()}
	else{alert("oops... no page saved");}
		  }

function process_cookies(){
	var whole_cookie = unescape(document.cookie);
	var each_cookie = whole_cookie.split(";");
	for (i = 0; i < each_cookie.length; i++)
	{ if (each_cookie[i].indexOf("page") > -1)
	  {var page_data = each_cookie[i];
	  }
	}
	var page_split = page_data.split("=");
	thepage = page_split[1];
	var x= (2*thepage);
		numR=x;
		numL=(x-1);
		document.getElementById('left').src="o" + numL + ".jpg";
		document.getElementById('rite').src="o" + numR + ".jpg";
		b=numR;
		document.getElementById('pagenumba').innerHTML=(b/=2);
			   }
			   
function gofor() {
		if (numR==102){nomorepagey()}
		else{
		    ++numL;
		    ++numL;
		    ++numR;  
		    ++numR;
		    document.getElementById('left').src="o" + numL + ".jpg";
		    document.getElementById('rite').src="o" + numR + ".jpg";
		    b=numR;
		    document.getElementById('pagenumba').innerHTML=(b/=2);
		     }
		 }

function gobac() {
		if (numL==1){nomorepagey()}
		else{
		    --numL;
		    --numL;
		    --numR;
		    --numR;	
        	    document.getElementById('left').src="o" + numL + ".jpg";
		    document.getElementById('rite').src="o" + numR + ".jpg";
		    b=numR;
		    document.getElementById('pagenumba').innerHTML=(b/=2);
		    }
		 }

function nomorepagey() {alert('there are no pages in this direction')}

function intro() {numL=3;
		numR=4;
		gobac();}

function chap1() {numL=7;
		numR=8;
		gobac();}

function chap2() {numL=15;
		numR=16;
		gobac();}

function chap3() {numL=23;
		numR=24;
		gobac();}

function chap4() {numL=31;
		numR=32;
		gobac();}

function chap5() {numL=39;
		numR=40;
		gobac();}

function chap6() {numL=51;
		numR=52;
		gobac();}

function chap7() {numL=61;
		numR=62;
		gobac();}

function chap8() {numL=69;
		numR=70;
		gobac();}

function chap9() {numL=83;
		numR=84;
		gobac();}