var book_slideimgdon=1;
var book_slideimgp1=new Image();
var book_slideimgp2=new Image();
var book_slideimgp3=new Image();

book_slideimgp1.src='/image/gbook_th.jpg';
book_slideimgp2.src='/image/pbook.jpg';
book_slideimgp3.src='/image/gbook_gde.jpg';

var book_slideimgstr1='<img src="/image/gbook_th.jpg" width=80 height=120 alt="" border="0">';
var book_slideimgstr2='<img src="/image/pbook.jpg" width=80 height=120 alt="" border="0">';
var book_slideimgstr3='<img src="/image/gbook_gde.jpg" width=80 height=120 alt="" border="0">';


var uagent;
var opsystem;
var IE4B=false;
var NS6B=false;
var MsWinS=false;
uagent = window.navigator.userAgent.toLowerCase();
opsystem = window.navigator.platform.toLowerCase();
if (opsystem.indexOf('win') != -1)
{MsWinS = true;}
IE4B=(document.all);
NS6B=((document.getElementById)&&(!IE4B))?true:false;

IE5=false;IE4=false;IEold=false;IE5=(uagent.indexOf('msie 5.0') != -1)?true:false;IE4=(uagent.indexOf('msie 4') != -1)?true:false;if(IE5||IE4||(MsWinS==false)){IEold=true;}
function book_slideinitr()
{

	if(IE4B){if((uagent.indexOf('msie 7.') != -1)||(uagent.indexOf('msie 6.') != -1)||(uagent.indexOf('msie 5.5') != -1)){book_slideimgdon=2;setTimeout('book_slidedxtrans()',3000);
}
}

	else if(NS6B)

{
setTimeout('book_slideslides()',1000);
}book_slideyenif();
}

function book_slidedxtrans()
{

if(IEold!=true)
{
book_slidecimg.filters[0].apply();
}book_slidecimg.src = eval("book_slideimgp"+book_slideimgdon+".src");
if(IEold!=true)
{
book_slidecimg.filters[0].play();
}
book_slideimgdon++;
if(book_slideimgdon>3)
{
book_slideimgdon=1;
}

setTimeout('book_slidedxtrans()',3000);
}


function book_slideslides()
{

if(book_slideimgdon==1)
{
document.book_slideslideimg.src=book_slideimgp2.src;
}
if(book_slideimgdon==2)
{
document.book_slideslideimg.src=book_slideimgp3.src;
}
if(book_slideimgdon==3)
{
document.book_slideslideimg.src=book_slideimgp1.src;
}

book_slideimgdon++;if(book_slideimgdon>3)
{
book_slideimgdon=1;
}
setTimeout('book_slideslides()',1000);
}

book_slideyenif = (window.onload) ? window.onload :  new Function;window.onload = function(){	setTimeout("book_slideinitr()",80);};