var numPics=8;
var pics=new Array("","book-chairseating-t.jpg","book-sally-t.jpg","book-mary-t.jpg","book-bernard-t.jpg",
"book-susie-t.jpg","book-hilary-t.jpg","book-dorothy-t.jpg","book-sentance.jpg");
var imagex=new Array(numPics+1);
var img_ok=new Array(numPics+1);
for(var m=1;m<=numPics;m++)
{
	imagex[m]=new Image();
	img_ok[m]=0;
}
function loadMark(n)
{
	img_ok[n]=1;
}
var bookNum=2;
function bookRotation()
{
	if(imagex[bookNum].complete)
	{
		document.bookPic.src="images/"+pics[bookNum];
	}	
	if(++bookNum>numPics){bookNum=1;}
	setTimeout("bookRotation()",3000);
}